diff --git a/mnemo_cards_backend/lib/tests/generators/question_generators/matrix_question_generator.dart b/mnemo_cards_backend/lib/tests/generators/question_generators/matrix_question_generator.dart
index 34acc46..58f9470 100644
--- a/mnemo_cards_backend/lib/tests/generators/question_generators/matrix_question_generator.dart
+++ b/mnemo_cards_backend/lib/tests/generators/question_generators/matrix_question_generator.dart
@@ -194,19 +194,31 @@ class MatrixQuestionGenerator implements QuestionGenerator {
     // Generate stages for all cards
     final stages = _generateStages(selected, questionType);
 
-    // Create cards - always include original and translation for back side display
+    // Create cards with explicit front and back side fields
     // Front side will show only relevant fields based on question type,
-    // but back side needs both original and translation
+    // Back side always shows original and translation
     final cards = selected.map((c) {
-      // Always include original and translation for back side
-      // Include image if available (for image-based question types)
+      final frontImage = questionType.imageCards
+          ? (_imageIdToUrl(c.image) ?? c.image ?? c.id)
+          : null;
+      final frontImageUrl = frontImage != null && _isUuid(frontImage)
+          ? null
+          : frontImage;
+
       return MatrixCardDto(
         id: c.id,
-        image: questionType.imageCards
-            ? (_imageIdToUrl(c.image) ?? c.image ?? c.id)
-            : null,
+        // Front side fields
+        image: frontImage != null && _isUuid(frontImage) ? frontImage : null,
+        imageUrl: frontImageUrl,
         original: c.original,
         translation: c.translation,
+        // Back side fields - always include original and translation
+        originalBack: c.original,
+        translationBack: c.translation,
+        imageBack: c.image != null && _isUuid(c.image!) ? c.image : null,
+        imageBackUrl: c.image != null && !_isUuid(c.image!)
+            ? c.image
+            : (c.image != null ? _imageIdToUrl(c.image) : null),
       );
     }).toList();
 
@@ -225,7 +237,8 @@ class MatrixQuestionGenerator implements QuestionGenerator {
       stages: stages,
       // Backward compatibility fields
       word: firstStage.targetWord,
-      answer: firstStage.targetCardId,
+      answer: firstStage
+          .targetCardId, // Опциональное, но заполняем для совместимости
       text: 'Найди слово:',
     );
   }
diff --git a/mnemo_cards_backend/lib/tests/test_manager.dart b/mnemo_cards_backend/lib/tests/test_manager.dart
index efaa43f..9c8864a 100644
--- a/mnemo_cards_backend/lib/tests/test_manager.dart
+++ b/mnemo_cards_backend/lib/tests/test_manager.dart
@@ -484,10 +484,14 @@ class TestManager {
               .map(
                 (c) => <String, dynamic>{
                   'id': c.id,
-                  // store image as objectId (MinIO) or filename
+                  // Front side fields
                   'image': c.image,
                   'original': c.original,
                   'translation': c.translation,
+                  // Back side fields - always include original and translation
+                  'originalBack': c.original,
+                  'translationBack': c.translation,
+                  'imageBack': c.image,
                 },
               )
               .toList();
@@ -503,16 +507,56 @@ class TestManager {
           questionJson['matrixSize'] = resolvedSize;
         } else if ((questionJson['answer'] as String?)?.isEmpty != false) {
           // If matrix cards exist but answer is missing, derive initial target
-          // from the first card.
-          final first = currentButtons.firstOrNull;
-          if (first is Map<String, dynamic>) {
-            final id = first['id']?.toString();
-            final original = first['original']?.toString();
-            if (id != null && id.isNotEmpty) {
-              questionJson['answer'] = id;
+          // from the first card or from stages.
+          final stages = (uiDataForResponse['stages'] as List<dynamic>?) ?? [];
+          if (stages.isNotEmpty) {
+            // Извлекаем из stages[0]
+            final firstStage = stages.first;
+            if (firstStage is Map<String, dynamic>) {
+              final targetCardId = firstStage['targetCardId']?.toString();
+              final targetWord = firstStage['targetWord']?.toString();
+              if (targetCardId != null && targetCardId.isNotEmpty) {
+                questionJson['answer'] = targetCardId;
+              }
+              if (targetWord != null && targetWord.isNotEmpty) {
+                questionJson['word'] = targetWord;
+              }
             }
-            if (original != null && original.isNotEmpty) {
-              questionJson['word'] = original;
+          } else {
+            // Fallback: извлекаем из первого card
+            final first = currentButtons.firstOrNull;
+            if (first is Map<String, dynamic>) {
+              final id = first['id']?.toString();
+              final original = first['original']?.toString();
+              if (id != null && id.isNotEmpty) {
+                questionJson['answer'] = id;
+              }
+              if (original != null && original.isNotEmpty) {
+                questionJson['word'] = original;
+              }
+            }
+          }
+        }
+
+        // Также проверяем word и answer из stages, если они пусты из БД
+        if ((questionJson['word'] as String?)?.isEmpty != false ||
+            (questionJson['answer'] as String?)?.isEmpty != false) {
+          final stages = (uiDataForResponse['stages'] as List<dynamic>?) ?? [];
+          if (stages.isNotEmpty) {
+            final firstStage = stages.first;
+            if (firstStage is Map<String, dynamic>) {
+              if ((questionJson['word'] as String?)?.isEmpty != false) {
+                final targetWord = firstStage['targetWord']?.toString();
+                if (targetWord != null && targetWord.isNotEmpty) {
+                  questionJson['word'] = targetWord;
+                }
+              }
+              if ((questionJson['answer'] as String?)?.isEmpty != false) {
+                final targetCardId = firstStage['targetCardId']?.toString();
+                if (targetCardId != null && targetCardId.isNotEmpty) {
+                  questionJson['answer'] = targetCardId;
+                }
+              }
             }
           }
         }
@@ -523,19 +567,33 @@ class TestManager {
       // All images now use the same cardImagesBucket
       final updatedButtons = await Future.wait(
         (questionJson['buttons'] as List<dynamic>? ?? []).map((button) async {
-          if (button is Map<String, dynamic> && button['image'] != null) {
+          if (button is Map<String, dynamic>) {
             final buttonMap = Map<String, dynamic>.from(button);
-            final imageValue = buttonMap['image']?.toString();
 
-            // Convert image to presigned URL
-            final imageUrl = await _imageValueToApiUrl(
-              imageValue,
-              packId: packId,
-            );
-
-            if (imageUrl != null) {
-              buttonMap['imageUrl'] = imageUrl;
+            // Convert front image to presigned URL
+            if (buttonMap['image'] != null) {
+              final imageValue = buttonMap['image']?.toString();
+              final imageUrl = await _imageValueToApiUrl(
+                imageValue,
+                packId: packId,
+              );
+              if (imageUrl != null) {
+                buttonMap['imageUrl'] = imageUrl;
+              }
             }
+
+            // Convert back image to presigned URL (for matrix cards)
+            if (buttonMap['imageBack'] != null) {
+              final imageBackValue = buttonMap['imageBack']?.toString();
+              final imageBackUrl = await _imageValueToApiUrl(
+                imageBackValue,
+                packId: packId,
+              );
+              if (imageBackUrl != null) {
+                buttonMap['imageBackUrl'] = imageBackUrl;
+              }
+            }
+
             return buttonMap;
           }
           return button;
@@ -834,8 +892,8 @@ class TestManager {
         final questionJson = question.toJson();
 
         // Extract key fields
-        final word = questionJson['word'] as String? ?? '';
-        final answer = questionJson['answer'] as String? ?? '';
+        var word = questionJson['word'] as String? ?? '';
+        var answer = questionJson['answer'] as String? ?? '';
         final buttons = questionJson['buttons'] as List<dynamic>? ?? [];
 
         // UI data (image, text, audio, template)
@@ -852,6 +910,29 @@ class TestManager {
         if (questionJson['stages'] != null)
           uiData['stages'] = questionJson['stages'];
 
+        // Для матричных вопросов извлекаем word и answer из stages[0] если они пусты
+        if (question.questionType == TestQuestionType.matrix) {
+          final stages = (questionJson['stages'] as List<dynamic>?) ?? [];
+          if (stages.isNotEmpty) {
+            final firstStage = stages.first;
+            if (firstStage is Map<String, dynamic>) {
+              if (word.isEmpty) {
+                final targetWord = firstStage['targetWord']?.toString() ?? '';
+                if (targetWord.isNotEmpty) {
+                  word = targetWord;
+                }
+              }
+              if (answer.isEmpty) {
+                final targetCardId =
+                    firstStage['targetCardId']?.toString() ?? '';
+                if (targetCardId.isNotEmpty) {
+                  answer = targetCardId;
+                }
+              }
+            }
+          }
+        }
+
         final questionCompanion = TestQuestionsCompanion.insert(
           testId: testId,
           orderIndex: drift.Value(orderIndex++),
diff --git a/mnemo_cards_common/lib/src/dtos/game_tests/test_bodies/matrix_test_question_body.dart b/mnemo_cards_common/lib/src/dtos/game_tests/test_bodies/matrix_test_question_body.dart
index b29b271..895a4a4 100644
--- a/mnemo_cards_common/lib/src/dtos/game_tests/test_bodies/matrix_test_question_body.dart
+++ b/mnemo_cards_common/lib/src/dtos/game_tests/test_bodies/matrix_test_question_body.dart
@@ -30,7 +30,7 @@ class MatrixTestQuestionBody extends AbstractTestQuestion {
   /// DEPRECATED: Use stages[0].targetCardId instead.
   /// Kept for backward compatibility.
   @JsonKey(defaultValue: '')
-  final String answer;
+  final String? answer;
 
   /// Question text (e.g., "Найди слово:")
   final String? text;
@@ -40,7 +40,7 @@ class MatrixTestQuestionBody extends AbstractTestQuestion {
     required this.matrixSize,
     required this.cards,
     this.stages = const [],
-    required this.answer,
+    this.answer,
     required super.word,
     this.text,
     super.questionType = TestQuestionType.matrix,
@@ -80,6 +80,10 @@ class MatrixCardDto {
   final String? imageUrl; // Presigned URL (for display)
   final String? original;
   final String? translation;
+  final String? originalBack; // Original on back side
+  final String? translationBack; // Translation on back side
+  final String? imageBack; // Object ID in MinIO for back side (for admin)
+  final String? imageBackUrl; // Presigned URL for back side (for display)
 
   const MatrixCardDto({
     required this.id,
@@ -87,6 +91,10 @@ class MatrixCardDto {
     this.imageUrl,
     this.original,
     this.translation,
+    this.originalBack,
+    this.translationBack,
+    this.imageBack,
+    this.imageBackUrl,
   });
 
   factory MatrixCardDto.fromJson(Map<String, dynamic> json) =>
diff --git a/mnemo_cards_common/lib/src/dtos/game_tests/test_bodies/matrix_test_question_body.g.dart b/mnemo_cards_common/lib/src/dtos/game_tests/test_bodies/matrix_test_question_body.g.dart
index 56f104b..e25ba6d 100644
--- a/mnemo_cards_common/lib/src/dtos/game_tests/test_bodies/matrix_test_question_body.g.dart
+++ b/mnemo_cards_common/lib/src/dtos/game_tests/test_bodies/matrix_test_question_body.g.dart
@@ -15,7 +15,7 @@ abstract class _$MatrixTestQuestionBodyCWProxy {
 
   MatrixTestQuestionBody stages(List<MatrixStageDto> stages);
 
-  MatrixTestQuestionBody answer(String answer);
+  MatrixTestQuestionBody answer(String? answer);
 
   MatrixTestQuestionBody word(String word);
 
@@ -35,7 +35,7 @@ abstract class _$MatrixTestQuestionBodyCWProxy {
     int matrixSize,
     List<MatrixCardDto> cards,
     List<MatrixStageDto> stages,
-    String answer,
+    String? answer,
     String word,
     String? text,
     TestQuestionType questionType,
@@ -65,7 +65,7 @@ class _$MatrixTestQuestionBodyCWProxyImpl
       call(stages: stages);
 
   @override
-  MatrixTestQuestionBody answer(String answer) => call(answer: answer);
+  MatrixTestQuestionBody answer(String? answer) => call(answer: answer);
 
   @override
   MatrixTestQuestionBody word(String word) => call(word: word);
@@ -113,10 +113,10 @@ class _$MatrixTestQuestionBodyCWProxyImpl
           ? _value.stages
           // ignore: cast_nullable_to_non_nullable
           : stages as List<MatrixStageDto>,
-      answer: answer == const $CopyWithPlaceholder() || answer == null
+      answer: answer == const $CopyWithPlaceholder()
           ? _value.answer
           // ignore: cast_nullable_to_non_nullable
-          : answer as String,
+          : answer as String?,
       word: word == const $CopyWithPlaceholder() || word == null
           ? _value.word
           // ignore: cast_nullable_to_non_nullable
@@ -231,6 +231,14 @@ abstract class _$MatrixCardDtoCWProxy {
 
   MatrixCardDto translation(String? translation);
 
+  MatrixCardDto originalBack(String? originalBack);
+
+  MatrixCardDto translationBack(String? translationBack);
+
+  MatrixCardDto imageBack(String? imageBack);
+
+  MatrixCardDto imageBackUrl(String? imageBackUrl);
+
   /// Creates a new instance with the provided field values.
   /// Passing `null` to a nullable field nullifies it, while `null` for a non-nullable field is ignored. To update a single field use `MatrixCardDto(...).copyWith.fieldName(value)`.
   ///
@@ -244,6 +252,10 @@ abstract class _$MatrixCardDtoCWProxy {
     String? imageUrl,
     String? original,
     String? translation,
+    String? originalBack,
+    String? translationBack,
+    String? imageBack,
+    String? imageBackUrl,
   });
 }
 
@@ -270,6 +282,21 @@ class _$MatrixCardDtoCWProxyImpl implements _$MatrixCardDtoCWProxy {
   MatrixCardDto translation(String? translation) =>
       call(translation: translation);
 
+  @override
+  MatrixCardDto originalBack(String? originalBack) =>
+      call(originalBack: originalBack);
+
+  @override
+  MatrixCardDto translationBack(String? translationBack) =>
+      call(translationBack: translationBack);
+
+  @override
+  MatrixCardDto imageBack(String? imageBack) => call(imageBack: imageBack);
+
+  @override
+  MatrixCardDto imageBackUrl(String? imageBackUrl) =>
+      call(imageBackUrl: imageBackUrl);
+
   @override
   /// Creates a new instance with the provided field values.
   /// Passing `null` to a nullable field nullifies it, while `null` for a non-nullable field is ignored. To update a single field use `MatrixCardDto(...).copyWith.fieldName(value)`.
@@ -284,6 +311,10 @@ class _$MatrixCardDtoCWProxyImpl implements _$MatrixCardDtoCWProxy {
     Object? imageUrl = const $CopyWithPlaceholder(),
     Object? original = const $CopyWithPlaceholder(),
     Object? translation = const $CopyWithPlaceholder(),
+    Object? originalBack = const $CopyWithPlaceholder(),
+    Object? translationBack = const $CopyWithPlaceholder(),
+    Object? imageBack = const $CopyWithPlaceholder(),
+    Object? imageBackUrl = const $CopyWithPlaceholder(),
   }) {
     return MatrixCardDto(
       id: id == const $CopyWithPlaceholder() || id == null
@@ -306,6 +337,22 @@ class _$MatrixCardDtoCWProxyImpl implements _$MatrixCardDtoCWProxy {
           ? _value.translation
           // ignore: cast_nullable_to_non_nullable
           : translation as String?,
+      originalBack: originalBack == const $CopyWithPlaceholder()
+          ? _value.originalBack
+          // ignore: cast_nullable_to_non_nullable
+          : originalBack as String?,
+      translationBack: translationBack == const $CopyWithPlaceholder()
+          ? _value.translationBack
+          // ignore: cast_nullable_to_non_nullable
+          : translationBack as String?,
+      imageBack: imageBack == const $CopyWithPlaceholder()
+          ? _value.imageBack
+          // ignore: cast_nullable_to_non_nullable
+          : imageBack as String?,
+      imageBackUrl: imageBackUrl == const $CopyWithPlaceholder()
+          ? _value.imageBackUrl
+          // ignore: cast_nullable_to_non_nullable
+          : imageBackUrl as String?,
     );
   }
 }
@@ -353,7 +400,7 @@ Map<String, dynamic> _$MatrixTestQuestionBodyToJson(
   'matrixSize': instance.matrixSize,
   'buttons': instance.cards.map((e) => e.toJson()).toList(),
   'stages': instance.stages.map((e) => e.toJson()).toList(),
-  'answer': instance.answer,
+  'answer': ?instance.answer,
   'text': ?instance.text,
 };
 
@@ -386,6 +433,10 @@ MatrixCardDto _$MatrixCardDtoFromJson(Map<String, dynamic> json) =>
       imageUrl: json['imageUrl'] as String?,
       original: json['original'] as String?,
       translation: json['translation'] as String?,
+      originalBack: json['originalBack'] as String?,
+      translationBack: json['translationBack'] as String?,
+      imageBack: json['imageBack'] as String?,
+      imageBackUrl: json['imageBackUrl'] as String?,
     );
 
 Map<String, dynamic> _$MatrixCardDtoToJson(MatrixCardDto instance) =>
@@ -395,4 +446,8 @@ Map<String, dynamic> _$MatrixCardDtoToJson(MatrixCardDto instance) =>
       'imageUrl': instance.imageUrl,
       'original': instance.original,
       'translation': instance.translation,
+      'originalBack': instance.originalBack,
+      'translationBack': instance.translationBack,
+      'imageBack': instance.imageBack,
+      'imageBackUrl': instance.imageBackUrl,
     };
diff --git a/mnemo_cards_web_v2/lib/domain/models/game_question.dart b/mnemo_cards_web_v2/lib/domain/models/game_question.dart
index 468b8cc..ffb3236 100644
--- a/mnemo_cards_web_v2/lib/domain/models/game_question.dart
+++ b/mnemo_cards_web_v2/lib/domain/models/game_question.dart
@@ -121,6 +121,9 @@ abstract class MatchPair with _$MatchPair {
 /// The question is multi-step on a single screen: after each correct selection
 /// the chosen card flips and a new target is shown from stages array until
 /// all cards are processed.
+///
+/// Note: Each stage has its own targetWord. For backward compatibility,
+/// use stages[0].targetWord if a single word is needed.
 @freezed
 abstract class MatrixQuestion with _$MatrixQuestion {
   const factory MatrixQuestion({
@@ -131,7 +134,6 @@ abstract class MatrixQuestion with _$MatrixQuestion {
     // DEPRECATED: Use stages[0] instead. Kept for backward compatibility.
     @Deprecated('Use stages[0] instead') String? initialTargetCardId,
     @Deprecated('Use stages[0] instead') String? initialTargetWord,
-    required String word,
     String? text,
     @Default('matrix') String type,
   }) = _MatrixQuestion;
@@ -157,8 +159,13 @@ abstract class MatrixCard with _$MatrixCard {
   const factory MatrixCard({
     required String id,
     String? image,
+    String? imageUrl,
     String? original,
     String? translation,
+    String? originalBack,
+    String? translationBack,
+    String? imageBack,
+    String? imageBackUrl,
   }) = _MatrixCard;
 
   factory MatrixCard.fromJson(Map<String, dynamic> json) =>
diff --git a/mnemo_cards_web_v2/lib/domain/models/game_question.freezed.dart b/mnemo_cards_web_v2/lib/domain/models/game_question.freezed.dart
index c9fa9d2..96fca1f 100644
--- a/mnemo_cards_web_v2/lib/domain/models/game_question.freezed.dart
+++ b/mnemo_cards_web_v2/lib/domain/models/game_question.freezed.dart
@@ -2268,7 +2268,7 @@ as String,
 mixin _$MatrixQuestion {
 
  String get id; int get matrixSize; List<MatrixCard> get cards; List<MatrixStage> get stages;// DEPRECATED: Use stages[0] instead. Kept for backward compatibility.
-@Deprecated('Use stages[0] instead') String? get initialTargetCardId;@Deprecated('Use stages[0] instead') String? get initialTargetWord; String get word; String? get text; String get type;
+@Deprecated('Use stages[0] instead') String? get initialTargetCardId;@Deprecated('Use stages[0] instead') String? get initialTargetWord; String? get text; String get type;
 /// Create a copy of MatrixQuestion
 /// with the given fields replaced by the non-null parameter values.
 @JsonKey(includeFromJson: false, includeToJson: false)
@@ -2281,16 +2281,16 @@ $MatrixQuestionCopyWith<MatrixQuestion> get copyWith => _$MatrixQuestionCopyWith
 
 @override
 bool operator ==(Object other) {
-  return identical(this, other) || (other.runtimeType == runtimeType&&other is MatrixQuestion&&(identical(other.id, id) || other.id == id)&&(identical(other.matrixSize, matrixSize) || other.matrixSize == matrixSize)&&const DeepCollectionEquality().equals(other.cards, cards)&&const DeepCollectionEquality().equals(other.stages, stages)&&(identical(other.initialTargetCardId, initialTargetCardId) || other.initialTargetCardId == initialTargetCardId)&&(identical(other.initialTargetWord, initialTargetWord) || other.initialTargetWord == initialTargetWord)&&(identical(other.word, word) || other.word == word)&&(identical(other.text, text) || other.text == text)&&(identical(other.type, type) || other.type == type));
+  return identical(this, other) || (other.runtimeType == runtimeType&&other is MatrixQuestion&&(identical(other.id, id) || other.id == id)&&(identical(other.matrixSize, matrixSize) || other.matrixSize == matrixSize)&&const DeepCollectionEquality().equals(other.cards, cards)&&const DeepCollectionEquality().equals(other.stages, stages)&&(identical(other.initialTargetCardId, initialTargetCardId) || other.initialTargetCardId == initialTargetCardId)&&(identical(other.initialTargetWord, initialTargetWord) || other.initialTargetWord == initialTargetWord)&&(identical(other.text, text) || other.text == text)&&(identical(other.type, type) || other.type == type));
 }
 
 @JsonKey(includeFromJson: false, includeToJson: false)
 @override
-int get hashCode => Object.hash(runtimeType,id,matrixSize,const DeepCollectionEquality().hash(cards),const DeepCollectionEquality().hash(stages),initialTargetCardId,initialTargetWord,word,text,type);
+int get hashCode => Object.hash(runtimeType,id,matrixSize,const DeepCollectionEquality().hash(cards),const DeepCollectionEquality().hash(stages),initialTargetCardId,initialTargetWord,text,type);
 
 @override
 String toString() {
-  return 'MatrixQuestion(id: $id, matrixSize: $matrixSize, cards: $cards, stages: $stages, initialTargetCardId: $initialTargetCardId, initialTargetWord: $initialTargetWord, word: $word, text: $text, type: $type)';
+  return 'MatrixQuestion(id: $id, matrixSize: $matrixSize, cards: $cards, stages: $stages, initialTargetCardId: $initialTargetCardId, initialTargetWord: $initialTargetWord, text: $text, type: $type)';
 }
 
 
@@ -2301,7 +2301,7 @@ abstract mixin class $MatrixQuestionCopyWith<$Res>  {
   factory $MatrixQuestionCopyWith(MatrixQuestion value, $Res Function(MatrixQuestion) _then) = _$MatrixQuestionCopyWithImpl;
 @useResult
 $Res call({
- String id, int matrixSize, List<MatrixCard> cards, List<MatrixStage> stages,@Deprecated('Use stages[0] instead') String? initialTargetCardId,@Deprecated('Use stages[0] instead') String? initialTargetWord, String word, String? text, String type
+ String id, int matrixSize, List<MatrixCard> cards, List<MatrixStage> stages,@Deprecated('Use stages[0] instead') String? initialTargetCardId,@Deprecated('Use stages[0] instead') String? initialTargetWord, String? text, String type
 });
 
 
@@ -2318,7 +2318,7 @@ class _$MatrixQuestionCopyWithImpl<$Res>
 
 /// Create a copy of MatrixQuestion
 /// with the given fields replaced by the non-null parameter values.
-@pragma('vm:prefer-inline') @override $Res call({Object? id = null,Object? matrixSize = null,Object? cards = null,Object? stages = null,Object? initialTargetCardId = freezed,Object? initialTargetWord = freezed,Object? word = null,Object? text = freezed,Object? type = null,}) {
+@pragma('vm:prefer-inline') @override $Res call({Object? id = null,Object? matrixSize = null,Object? cards = null,Object? stages = null,Object? initialTargetCardId = freezed,Object? initialTargetWord = freezed,Object? text = freezed,Object? type = null,}) {
   return _then(_self.copyWith(
 id: null == id ? _self.id : id // ignore: cast_nullable_to_non_nullable
 as String,matrixSize: null == matrixSize ? _self.matrixSize : matrixSize // ignore: cast_nullable_to_non_nullable
@@ -2326,8 +2326,7 @@ as int,cards: null == cards ? _self.cards : cards // ignore: cast_nullable_to_no
 as List<MatrixCard>,stages: null == stages ? _self.stages : stages // ignore: cast_nullable_to_non_nullable
 as List<MatrixStage>,initialTargetCardId: freezed == initialTargetCardId ? _self.initialTargetCardId : initialTargetCardId // ignore: cast_nullable_to_non_nullable
 as String?,initialTargetWord: freezed == initialTargetWord ? _self.initialTargetWord : initialTargetWord // ignore: cast_nullable_to_non_nullable
-as String?,word: null == word ? _self.word : word // ignore: cast_nullable_to_non_nullable
-as String,text: freezed == text ? _self.text : text // ignore: cast_nullable_to_non_nullable
+as String?,text: freezed == text ? _self.text : text // ignore: cast_nullable_to_non_nullable
 as String?,type: null == type ? _self.type : type // ignore: cast_nullable_to_non_nullable
 as String,
   ));
@@ -2414,10 +2413,10 @@ return $default(_that);case _:
 /// }
 /// ```
 
-@optionalTypeArgs TResult maybeWhen<TResult extends Object?>(TResult Function( String id,  int matrixSize,  List<MatrixCard> cards,  List<MatrixStage> stages, @Deprecated('Use stages[0] instead')  String? initialTargetCardId, @Deprecated('Use stages[0] instead')  String? initialTargetWord,  String word,  String? text,  String type)?  $default,{required TResult orElse(),}) {final _that = this;
+@optionalTypeArgs TResult maybeWhen<TResult extends Object?>(TResult Function( String id,  int matrixSize,  List<MatrixCard> cards,  List<MatrixStage> stages, @Deprecated('Use stages[0] instead')  String? initialTargetCardId, @Deprecated('Use stages[0] instead')  String? initialTargetWord,  String? text,  String type)?  $default,{required TResult orElse(),}) {final _that = this;
 switch (_that) {
 case _MatrixQuestion() when $default != null:
-return $default(_that.id,_that.matrixSize,_that.cards,_that.stages,_that.initialTargetCardId,_that.initialTargetWord,_that.word,_that.text,_that.type);case _:
+return $default(_that.id,_that.matrixSize,_that.cards,_that.stages,_that.initialTargetCardId,_that.initialTargetWord,_that.text,_that.type);case _:
   return orElse();
 
 }
@@ -2435,10 +2434,10 @@ return $default(_that.id,_that.matrixSize,_that.cards,_that.stages,_that.initial
 /// }
 /// ```
 
-@optionalTypeArgs TResult when<TResult extends Object?>(TResult Function( String id,  int matrixSize,  List<MatrixCard> cards,  List<MatrixStage> stages, @Deprecated('Use stages[0] instead')  String? initialTargetCardId, @Deprecated('Use stages[0] instead')  String? initialTargetWord,  String word,  String? text,  String type)  $default,) {final _that = this;
+@optionalTypeArgs TResult when<TResult extends Object?>(TResult Function( String id,  int matrixSize,  List<MatrixCard> cards,  List<MatrixStage> stages, @Deprecated('Use stages[0] instead')  String? initialTargetCardId, @Deprecated('Use stages[0] instead')  String? initialTargetWord,  String? text,  String type)  $default,) {final _that = this;
 switch (_that) {
 case _MatrixQuestion():
-return $default(_that.id,_that.matrixSize,_that.cards,_that.stages,_that.initialTargetCardId,_that.initialTargetWord,_that.word,_that.text,_that.type);case _:
+return $default(_that.id,_that.matrixSize,_that.cards,_that.stages,_that.initialTargetCardId,_that.initialTargetWord,_that.text,_that.type);case _:
   throw StateError('Unexpected subclass');
 
 }
@@ -2455,10 +2454,10 @@ return $default(_that.id,_that.matrixSize,_that.cards,_that.stages,_that.initial
 /// }
 /// ```
 
-@optionalTypeArgs TResult? whenOrNull<TResult extends Object?>(TResult? Function( String id,  int matrixSize,  List<MatrixCard> cards,  List<MatrixStage> stages, @Deprecated('Use stages[0] instead')  String? initialTargetCardId, @Deprecated('Use stages[0] instead')  String? initialTargetWord,  String word,  String? text,  String type)?  $default,) {final _that = this;
+@optionalTypeArgs TResult? whenOrNull<TResult extends Object?>(TResult? Function( String id,  int matrixSize,  List<MatrixCard> cards,  List<MatrixStage> stages, @Deprecated('Use stages[0] instead')  String? initialTargetCardId, @Deprecated('Use stages[0] instead')  String? initialTargetWord,  String? text,  String type)?  $default,) {final _that = this;
 switch (_that) {
 case _MatrixQuestion() when $default != null:
-return $default(_that.id,_that.matrixSize,_that.cards,_that.stages,_that.initialTargetCardId,_that.initialTargetWord,_that.word,_that.text,_that.type);case _:
+return $default(_that.id,_that.matrixSize,_that.cards,_that.stages,_that.initialTargetCardId,_that.initialTargetWord,_that.text,_that.type);case _:
   return null;
 
 }
@@ -2470,7 +2469,7 @@ return $default(_that.id,_that.matrixSize,_that.cards,_that.stages,_that.initial
 @JsonSerializable()
 
 class _MatrixQuestion implements MatrixQuestion {
-  const _MatrixQuestion({required this.id, required this.matrixSize, required final  List<MatrixCard> cards, final  List<MatrixStage> stages = const [], @Deprecated('Use stages[0] instead') this.initialTargetCardId, @Deprecated('Use stages[0] instead') this.initialTargetWord, required this.word, this.text, this.type = 'matrix'}): _cards = cards,_stages = stages;
+  const _MatrixQuestion({required this.id, required this.matrixSize, required final  List<MatrixCard> cards, final  List<MatrixStage> stages = const [], @Deprecated('Use stages[0] instead') this.initialTargetCardId, @Deprecated('Use stages[0] instead') this.initialTargetWord, this.text, this.type = 'matrix'}): _cards = cards,_stages = stages;
   factory _MatrixQuestion.fromJson(Map<String, dynamic> json) => _$MatrixQuestionFromJson(json);
 
 @override final  String id;
@@ -2492,7 +2491,6 @@ class _MatrixQuestion implements MatrixQuestion {
 // DEPRECATED: Use stages[0] instead. Kept for backward compatibility.
 @override@Deprecated('Use stages[0] instead') final  String? initialTargetCardId;
 @override@Deprecated('Use stages[0] instead') final  String? initialTargetWord;
-@override final  String word;
 @override final  String? text;
 @override@JsonKey() final  String type;
 
@@ -2509,16 +2507,16 @@ Map<String, dynamic> toJson() {
 
 @override
 bool operator ==(Object other) {
-  return identical(this, other) || (other.runtimeType == runtimeType&&other is _MatrixQuestion&&(identical(other.id, id) || other.id == id)&&(identical(other.matrixSize, matrixSize) || other.matrixSize == matrixSize)&&const DeepCollectionEquality().equals(other._cards, _cards)&&const DeepCollectionEquality().equals(other._stages, _stages)&&(identical(other.initialTargetCardId, initialTargetCardId) || other.initialTargetCardId == initialTargetCardId)&&(identical(other.initialTargetWord, initialTargetWord) || other.initialTargetWord == initialTargetWord)&&(identical(other.word, word) || other.word == word)&&(identical(other.text, text) || other.text == text)&&(identical(other.type, type) || other.type == type));
+  return identical(this, other) || (other.runtimeType == runtimeType&&other is _MatrixQuestion&&(identical(other.id, id) || other.id == id)&&(identical(other.matrixSize, matrixSize) || other.matrixSize == matrixSize)&&const DeepCollectionEquality().equals(other._cards, _cards)&&const DeepCollectionEquality().equals(other._stages, _stages)&&(identical(other.initialTargetCardId, initialTargetCardId) || other.initialTargetCardId == initialTargetCardId)&&(identical(other.initialTargetWord, initialTargetWord) || other.initialTargetWord == initialTargetWord)&&(identical(other.text, text) || other.text == text)&&(identical(other.type, type) || other.type == type));
 }
 
 @JsonKey(includeFromJson: false, includeToJson: false)
 @override
-int get hashCode => Object.hash(runtimeType,id,matrixSize,const DeepCollectionEquality().hash(_cards),const DeepCollectionEquality().hash(_stages),initialTargetCardId,initialTargetWord,word,text,type);
+int get hashCode => Object.hash(runtimeType,id,matrixSize,const DeepCollectionEquality().hash(_cards),const DeepCollectionEquality().hash(_stages),initialTargetCardId,initialTargetWord,text,type);
 
 @override
 String toString() {
-  return 'MatrixQuestion(id: $id, matrixSize: $matrixSize, cards: $cards, stages: $stages, initialTargetCardId: $initialTargetCardId, initialTargetWord: $initialTargetWord, word: $word, text: $text, type: $type)';
+  return 'MatrixQuestion(id: $id, matrixSize: $matrixSize, cards: $cards, stages: $stages, initialTargetCardId: $initialTargetCardId, initialTargetWord: $initialTargetWord, text: $text, type: $type)';
 }
 
 
@@ -2529,7 +2527,7 @@ abstract mixin class _$MatrixQuestionCopyWith<$Res> implements $MatrixQuestionCo
   factory _$MatrixQuestionCopyWith(_MatrixQuestion value, $Res Function(_MatrixQuestion) _then) = __$MatrixQuestionCopyWithImpl;
 @override @useResult
 $Res call({
- String id, int matrixSize, List<MatrixCard> cards, List<MatrixStage> stages,@Deprecated('Use stages[0] instead') String? initialTargetCardId,@Deprecated('Use stages[0] instead') String? initialTargetWord, String word, String? text, String type
+ String id, int matrixSize, List<MatrixCard> cards, List<MatrixStage> stages,@Deprecated('Use stages[0] instead') String? initialTargetCardId,@Deprecated('Use stages[0] instead') String? initialTargetWord, String? text, String type
 });
 
 
@@ -2546,7 +2544,7 @@ class __$MatrixQuestionCopyWithImpl<$Res>
 
 /// Create a copy of MatrixQuestion
 /// with the given fields replaced by the non-null parameter values.
-@override @pragma('vm:prefer-inline') $Res call({Object? id = null,Object? matrixSize = null,Object? cards = null,Object? stages = null,Object? initialTargetCardId = freezed,Object? initialTargetWord = freezed,Object? word = null,Object? text = freezed,Object? type = null,}) {
+@override @pragma('vm:prefer-inline') $Res call({Object? id = null,Object? matrixSize = null,Object? cards = null,Object? stages = null,Object? initialTargetCardId = freezed,Object? initialTargetWord = freezed,Object? text = freezed,Object? type = null,}) {
   return _then(_MatrixQuestion(
 id: null == id ? _self.id : id // ignore: cast_nullable_to_non_nullable
 as String,matrixSize: null == matrixSize ? _self.matrixSize : matrixSize // ignore: cast_nullable_to_non_nullable
@@ -2554,8 +2552,7 @@ as int,cards: null == cards ? _self._cards : cards // ignore: cast_nullable_to_n
 as List<MatrixCard>,stages: null == stages ? _self._stages : stages // ignore: cast_nullable_to_non_nullable
 as List<MatrixStage>,initialTargetCardId: freezed == initialTargetCardId ? _self.initialTargetCardId : initialTargetCardId // ignore: cast_nullable_to_non_nullable
 as String?,initialTargetWord: freezed == initialTargetWord ? _self.initialTargetWord : initialTargetWord // ignore: cast_nullable_to_non_nullable
-as String?,word: null == word ? _self.word : word // ignore: cast_nullable_to_non_nullable
-as String,text: freezed == text ? _self.text : text // ignore: cast_nullable_to_non_nullable
+as String?,text: freezed == text ? _self.text : text // ignore: cast_nullable_to_non_nullable
 as String?,type: null == type ? _self.type : type // ignore: cast_nullable_to_non_nullable
 as String,
   ));
@@ -2837,7 +2834,7 @@ as String?,
 /// @nodoc
 mixin _$MatrixCard {
 
- String get id; String? get image; String? get original; String? get translation;
+ String get id; String? get image; String? get imageUrl; String? get original; String? get translation; String? get originalBack; String? get translationBack; String? get imageBack; String? get imageBackUrl;
 /// Create a copy of MatrixCard
 /// with the given fields replaced by the non-null parameter values.
 @JsonKey(includeFromJson: false, includeToJson: false)
@@ -2850,16 +2847,16 @@ $MatrixCardCopyWith<MatrixCard> get copyWith => _$MatrixCardCopyWithImpl<MatrixC
 
 @override
 bool operator ==(Object other) {
-  return identical(this, other) || (other.runtimeType == runtimeType&&other is MatrixCard&&(identical(other.id, id) || other.id == id)&&(identical(other.image, image) || other.image == image)&&(identical(other.original, original) || other.original == original)&&(identical(other.translation, translation) || other.translation == translation));
+  return identical(this, other) || (other.runtimeType == runtimeType&&other is MatrixCard&&(identical(other.id, id) || other.id == id)&&(identical(other.image, image) || other.image == image)&&(identical(other.imageUrl, imageUrl) || other.imageUrl == imageUrl)&&(identical(other.original, original) || other.original == original)&&(identical(other.translation, translation) || other.translation == translation)&&(identical(other.originalBack, originalBack) || other.originalBack == originalBack)&&(identical(other.translationBack, translationBack) || other.translationBack == translationBack)&&(identical(other.imageBack, imageBack) || other.imageBack == imageBack)&&(identical(other.imageBackUrl, imageBackUrl) || other.imageBackUrl == imageBackUrl));
 }
 
 @JsonKey(includeFromJson: false, includeToJson: false)
 @override
-int get hashCode => Object.hash(runtimeType,id,image,original,translation);
+int get hashCode => Object.hash(runtimeType,id,image,imageUrl,original,translation,originalBack,translationBack,imageBack,imageBackUrl);
 
 @override
 String toString() {
-  return 'MatrixCard(id: $id, image: $image, original: $original, translation: $translation)';
+  return 'MatrixCard(id: $id, image: $image, imageUrl: $imageUrl, original: $original, translation: $translation, originalBack: $originalBack, translationBack: $translationBack, imageBack: $imageBack, imageBackUrl: $imageBackUrl)';
 }
 
 
@@ -2870,7 +2867,7 @@ abstract mixin class $MatrixCardCopyWith<$Res>  {
   factory $MatrixCardCopyWith(MatrixCard value, $Res Function(MatrixCard) _then) = _$MatrixCardCopyWithImpl;
 @useResult
 $Res call({
- String id, String? image, String? original, String? translation
+ String id, String? image, String? imageUrl, String? original, String? translation, String? originalBack, String? translationBack, String? imageBack, String? imageBackUrl
 });
 
 
@@ -2887,12 +2884,17 @@ class _$MatrixCardCopyWithImpl<$Res>
 
 /// Create a copy of MatrixCard
 /// with the given fields replaced by the non-null parameter values.
-@pragma('vm:prefer-inline') @override $Res call({Object? id = null,Object? image = freezed,Object? original = freezed,Object? translation = freezed,}) {
+@pragma('vm:prefer-inline') @override $Res call({Object? id = null,Object? image = freezed,Object? imageUrl = freezed,Object? original = freezed,Object? translation = freezed,Object? originalBack = freezed,Object? translationBack = freezed,Object? imageBack = freezed,Object? imageBackUrl = freezed,}) {
   return _then(_self.copyWith(
 id: null == id ? _self.id : id // ignore: cast_nullable_to_non_nullable
 as String,image: freezed == image ? _self.image : image // ignore: cast_nullable_to_non_nullable
+as String?,imageUrl: freezed == imageUrl ? _self.imageUrl : imageUrl // ignore: cast_nullable_to_non_nullable
 as String?,original: freezed == original ? _self.original : original // ignore: cast_nullable_to_non_nullable
 as String?,translation: freezed == translation ? _self.translation : translation // ignore: cast_nullable_to_non_nullable
+as String?,originalBack: freezed == originalBack ? _self.originalBack : originalBack // ignore: cast_nullable_to_non_nullable
+as String?,translationBack: freezed == translationBack ? _self.translationBack : translationBack // ignore: cast_nullable_to_non_nullable
+as String?,imageBack: freezed == imageBack ? _self.imageBack : imageBack // ignore: cast_nullable_to_non_nullable
+as String?,imageBackUrl: freezed == imageBackUrl ? _self.imageBackUrl : imageBackUrl // ignore: cast_nullable_to_non_nullable
 as String?,
   ));
 }
@@ -2978,10 +2980,10 @@ return $default(_that);case _:
 /// }
 /// ```
 
-@optionalTypeArgs TResult maybeWhen<TResult extends Object?>(TResult Function( String id,  String? image,  String? original,  String? translation)?  $default,{required TResult orElse(),}) {final _that = this;
+@optionalTypeArgs TResult maybeWhen<TResult extends Object?>(TResult Function( String id,  String? image,  String? imageUrl,  String? original,  String? translation,  String? originalBack,  String? translationBack,  String? imageBack,  String? imageBackUrl)?  $default,{required TResult orElse(),}) {final _that = this;
 switch (_that) {
 case _MatrixCard() when $default != null:
-return $default(_that.id,_that.image,_that.original,_that.translation);case _:
+return $default(_that.id,_that.image,_that.imageUrl,_that.original,_that.translation,_that.originalBack,_that.translationBack,_that.imageBack,_that.imageBackUrl);case _:
   return orElse();
 
 }
@@ -2999,10 +3001,10 @@ return $default(_that.id,_that.image,_that.original,_that.translation);case _:
 /// }
 /// ```
 
-@optionalTypeArgs TResult when<TResult extends Object?>(TResult Function( String id,  String? image,  String? original,  String? translation)  $default,) {final _that = this;
+@optionalTypeArgs TResult when<TResult extends Object?>(TResult Function( String id,  String? image,  String? imageUrl,  String? original,  String? translation,  String? originalBack,  String? translationBack,  String? imageBack,  String? imageBackUrl)  $default,) {final _that = this;
 switch (_that) {
 case _MatrixCard():
-return $default(_that.id,_that.image,_that.original,_that.translation);case _:
+return $default(_that.id,_that.image,_that.imageUrl,_that.original,_that.translation,_that.originalBack,_that.translationBack,_that.imageBack,_that.imageBackUrl);case _:
   throw StateError('Unexpected subclass');
 
 }
@@ -3019,10 +3021,10 @@ return $default(_that.id,_that.image,_that.original,_that.translation);case _:
 /// }
 /// ```
 
-@optionalTypeArgs TResult? whenOrNull<TResult extends Object?>(TResult? Function( String id,  String? image,  String? original,  String? translation)?  $default,) {final _that = this;
+@optionalTypeArgs TResult? whenOrNull<TResult extends Object?>(TResult? Function( String id,  String? image,  String? imageUrl,  String? original,  String? translation,  String? originalBack,  String? translationBack,  String? imageBack,  String? imageBackUrl)?  $default,) {final _that = this;
 switch (_that) {
 case _MatrixCard() when $default != null:
-return $default(_that.id,_that.image,_that.original,_that.translation);case _:
+return $default(_that.id,_that.image,_that.imageUrl,_that.original,_that.translation,_that.originalBack,_that.translationBack,_that.imageBack,_that.imageBackUrl);case _:
   return null;
 
 }
@@ -3034,13 +3036,18 @@ return $default(_that.id,_that.image,_that.original,_that.translation);case _:
 @JsonSerializable()
 
 class _MatrixCard implements MatrixCard {
-  const _MatrixCard({required this.id, this.image, this.original, this.translation});
+  const _MatrixCard({required this.id, this.image, this.imageUrl, this.original, this.translation, this.originalBack, this.translationBack, this.imageBack, this.imageBackUrl});
   factory _MatrixCard.fromJson(Map<String, dynamic> json) => _$MatrixCardFromJson(json);
 
 @override final  String id;
 @override final  String? image;
+@override final  String? imageUrl;
 @override final  String? original;
 @override final  String? translation;
+@override final  String? originalBack;
+@override final  String? translationBack;
+@override final  String? imageBack;
+@override final  String? imageBackUrl;
 
 /// Create a copy of MatrixCard
 /// with the given fields replaced by the non-null parameter values.
@@ -3055,16 +3062,16 @@ Map<String, dynamic> toJson() {
 
 @override
 bool operator ==(Object other) {
-  return identical(this, other) || (other.runtimeType == runtimeType&&other is _MatrixCard&&(identical(other.id, id) || other.id == id)&&(identical(other.image, image) || other.image == image)&&(identical(other.original, original) || other.original == original)&&(identical(other.translation, translation) || other.translation == translation));
+  return identical(this, other) || (other.runtimeType == runtimeType&&other is _MatrixCard&&(identical(other.id, id) || other.id == id)&&(identical(other.image, image) || other.image == image)&&(identical(other.imageUrl, imageUrl) || other.imageUrl == imageUrl)&&(identical(other.original, original) || other.original == original)&&(identical(other.translation, translation) || other.translation == translation)&&(identical(other.originalBack, originalBack) || other.originalBack == originalBack)&&(identical(other.translationBack, translationBack) || other.translationBack == translationBack)&&(identical(other.imageBack, imageBack) || other.imageBack == imageBack)&&(identical(other.imageBackUrl, imageBackUrl) || other.imageBackUrl == imageBackUrl));
 }
 
 @JsonKey(includeFromJson: false, includeToJson: false)
 @override
-int get hashCode => Object.hash(runtimeType,id,image,original,translation);
+int get hashCode => Object.hash(runtimeType,id,image,imageUrl,original,translation,originalBack,translationBack,imageBack,imageBackUrl);
 
 @override
 String toString() {
-  return 'MatrixCard(id: $id, image: $image, original: $original, translation: $translation)';
+  return 'MatrixCard(id: $id, image: $image, imageUrl: $imageUrl, original: $original, translation: $translation, originalBack: $originalBack, translationBack: $translationBack, imageBack: $imageBack, imageBackUrl: $imageBackUrl)';
 }
 
 
@@ -3075,7 +3082,7 @@ abstract mixin class _$MatrixCardCopyWith<$Res> implements $MatrixCardCopyWith<$
   factory _$MatrixCardCopyWith(_MatrixCard value, $Res Function(_MatrixCard) _then) = __$MatrixCardCopyWithImpl;
 @override @useResult
 $Res call({
- String id, String? image, String? original, String? translation
+ String id, String? image, String? imageUrl, String? original, String? translation, String? originalBack, String? translationBack, String? imageBack, String? imageBackUrl
 });
 
 
@@ -3092,12 +3099,17 @@ class __$MatrixCardCopyWithImpl<$Res>
 
 /// Create a copy of MatrixCard
 /// with the given fields replaced by the non-null parameter values.
-@override @pragma('vm:prefer-inline') $Res call({Object? id = null,Object? image = freezed,Object? original = freezed,Object? translation = freezed,}) {
+@override @pragma('vm:prefer-inline') $Res call({Object? id = null,Object? image = freezed,Object? imageUrl = freezed,Object? original = freezed,Object? translation = freezed,Object? originalBack = freezed,Object? translationBack = freezed,Object? imageBack = freezed,Object? imageBackUrl = freezed,}) {
   return _then(_MatrixCard(
 id: null == id ? _self.id : id // ignore: cast_nullable_to_non_nullable
 as String,image: freezed == image ? _self.image : image // ignore: cast_nullable_to_non_nullable
+as String?,imageUrl: freezed == imageUrl ? _self.imageUrl : imageUrl // ignore: cast_nullable_to_non_nullable
 as String?,original: freezed == original ? _self.original : original // ignore: cast_nullable_to_non_nullable
 as String?,translation: freezed == translation ? _self.translation : translation // ignore: cast_nullable_to_non_nullable
+as String?,originalBack: freezed == originalBack ? _self.originalBack : originalBack // ignore: cast_nullable_to_non_nullable
+as String?,translationBack: freezed == translationBack ? _self.translationBack : translationBack // ignore: cast_nullable_to_non_nullable
+as String?,imageBack: freezed == imageBack ? _self.imageBack : imageBack // ignore: cast_nullable_to_non_nullable
+as String?,imageBackUrl: freezed == imageBackUrl ? _self.imageBackUrl : imageBackUrl // ignore: cast_nullable_to_non_nullable
 as String?,
   ));
 }
diff --git a/mnemo_cards_web_v2/lib/domain/models/game_question.g.dart b/mnemo_cards_web_v2/lib/domain/models/game_question.g.dart
index 6e72111..a8ef733 100644
--- a/mnemo_cards_web_v2/lib/domain/models/game_question.g.dart
+++ b/mnemo_cards_web_v2/lib/domain/models/game_question.g.dart
@@ -205,7 +205,6 @@ _MatrixQuestion _$MatrixQuestionFromJson(Map<String, dynamic> json) =>
           const [],
       initialTargetCardId: json['initialTargetCardId'] as String?,
       initialTargetWord: json['initialTargetWord'] as String?,
-      word: json['word'] as String,
       text: json['text'] as String?,
       type: json['type'] as String? ?? 'matrix',
     );
@@ -218,7 +217,6 @@ Map<String, dynamic> _$MatrixQuestionToJson(_MatrixQuestion instance) =>
       'stages': instance.stages,
       'initialTargetCardId': instance.initialTargetCardId,
       'initialTargetWord': instance.initialTargetWord,
-      'word': instance.word,
       'text': instance.text,
       'type': instance.type,
     };
@@ -239,16 +237,26 @@ Map<String, dynamic> _$MatrixStageToJson(_MatrixStage instance) =>
 _MatrixCard _$MatrixCardFromJson(Map<String, dynamic> json) => _MatrixCard(
   id: json['id'] as String,
   image: json['image'] as String?,
+  imageUrl: json['imageUrl'] as String?,
   original: json['original'] as String?,
   translation: json['translation'] as String?,
+  originalBack: json['originalBack'] as String?,
+  translationBack: json['translationBack'] as String?,
+  imageBack: json['imageBack'] as String?,
+  imageBackUrl: json['imageBackUrl'] as String?,
 );
 
 Map<String, dynamic> _$MatrixCardToJson(_MatrixCard instance) =>
     <String, dynamic>{
       'id': instance.id,
       'image': instance.image,
+      'imageUrl': instance.imageUrl,
       'original': instance.original,
       'translation': instance.translation,
+      'originalBack': instance.originalBack,
+      'translationBack': instance.translationBack,
+      'imageBack': instance.imageBack,
+      'imageBackUrl': instance.imageBackUrl,
     };
 
 _QuestionResult _$QuestionResultFromJson(Map<String, dynamic> json) =>
diff --git a/mnemo_cards_web_v2/lib/domain/services/game_session_manager.dart b/mnemo_cards_web_v2/lib/domain/services/game_session_manager.dart
index f3495e5..8e64c2c 100644
--- a/mnemo_cards_web_v2/lib/domain/services/game_session_manager.dart
+++ b/mnemo_cards_web_v2/lib/domain/services/game_session_manager.dart
@@ -11,7 +11,7 @@ class GameSessionManager {
   GameSessionManager();
 
   GameSessionResult? _currentResult;
-  final Map<String, QuestionResult> _questionResults = {};
+  final Map<String, List<QuestionResult>> _questionResults = {};
   Timer? _questionTimer;
   DateTime? _sessionStartTime;
   DateTime? _currentQuestionStartTime;
@@ -21,7 +21,7 @@ class GameSessionManager {
   GameSessionResult? get currentResult => _currentResult;
 
   /// All question results for current session
-  Map<String, QuestionResult> get questionResults =>
+  Map<String, List<QuestionResult>> get questionResults =>
       Map.unmodifiable(_questionResults);
 
   /// Elapsed time since session start
@@ -50,11 +50,53 @@ class GameSessionManager {
     // Pre-populate question results with placeholders
     for (final question in questions) {
       final questionId = _getQuestionId(question);
-      _questionResults[questionId] = QuestionResult(
-        questionId: questionId,
-        word: _getQuestionWord(question),
-        isCorrect: false,
-        timeSpent: Duration.zero,
+      
+      question.when(
+        multipleChoice: (_) {
+          // Для обычных: список с одним элементом
+          _questionResults[questionId] = [
+            QuestionResult(
+              questionId: questionId,
+              word: _getQuestionWord(question),
+              isCorrect: false,
+              timeSpent: Duration.zero,
+            )
+          ];
+        },
+        inputLetters: (_) {
+          // Для обычных: список с одним элементом
+          _questionResults[questionId] = [
+            QuestionResult(
+              questionId: questionId,
+              word: _getQuestionWord(question),
+              isCorrect: false,
+              timeSpent: Duration.zero,
+            )
+          ];
+        },
+        match: (_) {
+          // Для обычных: список с одним элементом
+          _questionResults[questionId] = [
+            QuestionResult(
+              questionId: questionId,
+              word: _getQuestionWord(question),
+              isCorrect: false,
+              timeSpent: Duration.zero,
+            )
+          ];
+        },
+        matrix: (q) {
+          // Для матричных: список placeholders для каждого stage
+          _questionResults[questionId] = q.stages.map((stage) => 
+            QuestionResult(
+              questionId: questionId,
+              word: stage.targetWord,
+              isCorrect: false,
+              timeSpent: Duration.zero,
+              selectedAnswer: stage.targetCardId, // Для идентификации
+            )
+          ).toList();
+        },
       );
     }
 
@@ -74,31 +116,69 @@ class GameSessionManager {
   /// Submit answer for current question and move to next
   void submitAnswer(String questionId, GameQuestion question, dynamic answer) {
     final timeSpent = _calculateTimeSpent();
-    final isCorrect = _validateAnswer(question, answer);
 
     log(
-      'Answer submitted for question $questionId: correct=$isCorrect, time=${timeSpent.inMilliseconds}ms',
+      'Answer submitted for question $questionId, time=${timeSpent.inMilliseconds}ms',
       name: 'GameSessionManager',
     );
 
-    final selectedAnswer = answer is String ? answer : null;
-    final selectedAnswers = switch (answer) {
-      List<String> v => v,
-      MatrixImageSelectAnswer v => v.correctCardIdsInOrder,
-      _ => null,
-    };
-
-    final result = QuestionResult(
-      questionId: questionId,
-      word: _getQuestionWord(question),
-      isCorrect: isCorrect,
-      timeSpent: timeSpent,
-      selectedAnswer: selectedAnswer,
-      selectedAnswers: selectedAnswers,
-      answeredAt: DateTime.now(),
+    // Для матричных вопросов создаем список результатов (по одному на stage)
+    var isMatrixProcessed = false;
+    question.when(
+      matrix: (q) {
+        if (answer is MatrixImageSelectAnswer) {
+          final results = <QuestionResult>[];
+          final timePerStageMs = timeSpent.inMilliseconds / q.stages.length;
+          final timePerStage = Duration(milliseconds: timePerStageMs.round());
+          
+          for (int i = 0; i < q.stages.length; i++) {
+            final stage = q.stages[i];
+            final selectedCardId = answer.correctCardIdsInOrder[i];
+            final isStageCorrect = selectedCardId == stage.targetCardId;
+            
+            results.add(QuestionResult(
+              questionId: questionId, // Оригинальный ID (без _stage_)
+              word: stage.targetWord,
+              isCorrect: isStageCorrect,
+              timeSpent: timePerStage,
+              selectedAnswer: selectedCardId,
+              selectedAnswers: answer.correctCardIdsInOrder,
+              answeredAt: DateTime.now(),
+            ));
+          }
+          
+          _questionResults[questionId] = results;
+          isMatrixProcessed = true;
+        }
+      },
+      multipleChoice: (_) {},
+      inputLetters: (_) {},
+      match: (_) {},
     );
+    
+    if (!isMatrixProcessed) {
+      // Обычные вопросы: список с одним элементом
+      final isCorrect = _validateAnswer(question, answer);
+      final selectedAnswer = answer is String ? answer : null;
+      final selectedAnswers = switch (answer) {
+        List<String> v => v,
+        MatrixImageSelectAnswer v => v.correctCardIdsInOrder,
+        _ => null,
+      };
+
+      final result = QuestionResult(
+        questionId: questionId,
+        word: _getQuestionWord(question),
+        isCorrect: isCorrect,
+        timeSpent: timeSpent,
+        selectedAnswer: selectedAnswer,
+        selectedAnswers: selectedAnswers,
+        answeredAt: DateTime.now(),
+      );
+
+      _questionResults[questionId] = [result];
+    }
 
-    _questionResults[questionId] = result;
     _questionTimer?.cancel();
     _currentQuestionStartTime = null;
   }
@@ -108,14 +188,20 @@ class GameSessionManager {
   /// Complete the current game session
   GameSessionResult completeSession(String testId) {
     final totalTime = _calculateSessionTime();
-    final correctAnswers = _questionResults.values
+
+    // Все результаты из всех списков
+    final allResults = _questionResults.values
+        .expand((results) => results)
+        .toList();
+
+    final correctAnswers = allResults
         .where((r) => r.isCorrect)
         .length;
-    final totalQuestions = _questionResults.length;
+    final totalQuestions = allResults.length; // Количество stages
 
     _currentResult = GameSessionResult(
       testId: testId,
-      questionResults: _questionResults.values.toList(),
+      questionResults: allResults, // Плоский список
       totalTime: totalTime,
       correctAnswers: correctAnswers,
       totalQuestions: totalQuestions,
@@ -136,21 +222,51 @@ class GameSessionManager {
     log('Question skipped: $questionId', name: 'GameSessionManager');
 
     final timeSpent = _calculateTimeSpent();
-    final existingResult = _questionResults[questionId];
+    final results = _questionResults[questionId];
 
-    if (existingResult != null) {
-      _questionResults[questionId] = existingResult.copyWith(
-        timeSpent: existingResult.timeSpent + timeSpent,
-      );
+    if (results != null && results.isNotEmpty) {
+      final timePerResultMs = timeSpent.inMilliseconds / results.length;
+      final timePerResult = Duration(milliseconds: timePerResultMs.round());
+      _questionResults[questionId] = results
+          .map((r) => r.copyWith(timeSpent: r.timeSpent + timePerResult))
+          .toList();
     }
 
     _questionTimer?.cancel();
     _currentQuestionStartTime = null;
   }
 
-  /// Get result for specific question
+  /// Get result for specific question (returns first result for backward compatibility)
   QuestionResult? getQuestionResult(String questionId) {
-    return _questionResults[questionId];
+    final results = _questionResults[questionId];
+    return results?.isNotEmpty == true ? results!.first : null;
+  }
+
+  /// Get result for specific stage of matrix question
+  QuestionResult? getQuestionResultByStage(
+    String questionId,
+    String word,
+    String? selectedAnswer,
+  ) {
+    final results = _questionResults[questionId];
+    if (results == null || results.isEmpty) return null;
+
+    try {
+      return results.firstWhere(
+        (r) => r.word == word && r.selectedAnswer == selectedAnswer,
+      );
+    } catch (_) {
+      return null;
+    }
+  }
+
+  /// Check if all stages of matrix question are correct
+  bool isMatrixQuestionCorrect(String questionId) {
+    final results = _questionResults[questionId];
+    if (results == null || results.isEmpty) return false;
+
+    // Все stages должны быть правильными
+    return results.every((r) => r.isCorrect);
   }
 
   /// Check if session is active
@@ -160,10 +276,14 @@ class GameSessionManager {
   Map<String, dynamic> getSessionStats() {
     if (!isSessionActive) return {};
 
-    final answeredQuestions = _questionResults.values
+    final allResults = _questionResults.values
+        .expand((results) => results)
+        .toList();
+
+    final answeredQuestions = allResults
         .where((r) => r.answeredAt != null)
         .length;
-    final correctAnswers = _questionResults.values
+    final correctAnswers = allResults
         .where((r) => r.isCorrect)
         .length;
     final totalTime = _calculateSessionTime();
@@ -171,7 +291,7 @@ class GameSessionManager {
     return {
       'answeredQuestions': answeredQuestions,
       'correctAnswers': correctAnswers,
-      'totalQuestions': _questionResults.length,
+      'totalQuestions': allResults.length, // Количество stages
       'accuracy': answeredQuestions > 0
           ? correctAnswers / answeredQuestions
           : 0.0,
@@ -206,7 +326,7 @@ class GameSessionManager {
       multipleChoice: (q) => q.word,
       inputLetters: (q) => q.word,
       match: (q) => q.word,
-      matrix: (q) => q.word,
+      matrix: (q) => q.stages.isNotEmpty ? q.stages.first.targetWord : '',
     );
   }
 
@@ -283,13 +403,25 @@ class GameSessionManager {
     // attempts. Progression to the next question is handled by
     // TestsStateManager (it should advance even if isCorrect == false).
     if (answer is MatrixImageSelectAnswer) {
-      return answer.correctCardIdsInOrder.length == question.cards.length &&
-          answer.wrongAttempts == 0;
+      // Проверяем, что все stages пройдены
+      if (answer.correctCardIdsInOrder.length != question.stages.length) {
+        return false;
+      }
+
+      // Проверяем, что все stages правильные
+      for (int i = 0; i < question.stages.length; i++) {
+        if (answer.correctCardIdsInOrder[i] != question.stages[i].targetCardId) {
+          return false;
+        }
+      }
+
+      // Проверяем, что не было ошибок
+      return answer.wrongAttempts == 0;
     }
 
     // Backward/compat: if someone submits just the correct ids list.
     if (answer is List<String>) {
-      return answer.length == question.cards.length;
+      return answer.length == question.stages.length;
     }
 
     return false;
diff --git a/mnemo_cards_web_v2/lib/domain/state/tests_state_manager.dart b/mnemo_cards_web_v2/lib/domain/state/tests_state_manager.dart
index a57a8ea..03a1c37 100644
--- a/mnemo_cards_web_v2/lib/domain/state/tests_state_manager.dart
+++ b/mnemo_cards_web_v2/lib/domain/state/tests_state_manager.dart
@@ -36,7 +36,7 @@ class TestsState with _$TestsState {
     required List<GameQuestion> questions,
     required int currentQuestionIndex,
     required GameSessionResult? currentResult,
-    required Map<String, QuestionResult> questionResults,
+    required Map<String, List<QuestionResult>> questionResults,
     required bool isAnswerSubmitted,
     required bool isCorrect,
     Duration? answerFeedbackDelay,
@@ -168,8 +168,13 @@ class TestsStateManager extends StateManager<TestsState> {
     // Submit answer to session manager
     _gameSessionManager.submitAnswer(questionId, currentQuestion, answer);
 
-    final isCorrect =
-        _gameSessionManager.getQuestionResult(questionId)?.isCorrect ?? false;
+    // Для матричных вопросов проверяем все stages, для остальных - первый результат
+    final isCorrect = currentQuestion.when(
+      multipleChoice: (_) => _gameSessionManager.getQuestionResult(questionId)?.isCorrect ?? false,
+      inputLetters: (_) => _gameSessionManager.getQuestionResult(questionId)?.isCorrect ?? false,
+      match: (_) => _gameSessionManager.getQuestionResult(questionId)?.isCorrect ?? false,
+      matrix: (_) => _gameSessionManager.isMatrixQuestionCorrect(questionId),
+    );
 
     // Play sound/haptics based on settings
     if (_settings.enableSounds) {
@@ -246,8 +251,8 @@ class TestsStateManager extends StateManager<TestsState> {
     final questionId = _getQuestionId(currentQuestion);
 
     _gameSessionManager.submitAnswer(questionId, currentQuestion, answer);
-    final isCorrect =
-        _gameSessionManager.getQuestionResult(questionId)?.isCorrect ?? false;
+    // Матричный вопрос считается правильным, если все stages правильные
+    final isCorrect = _gameSessionManager.isMatrixQuestionCorrect(questionId);
 
     // Completion feedback (always positive UX)
     if (_settings.enableSounds) {
@@ -540,9 +545,16 @@ class TestsStateManager extends StateManager<TestsState> {
             .map(
               (c) => MatrixCard(
                 id: c.id,
-                image: c.imageUrl ?? c.image, // Use presigned URL if available
+                // Front side fields
+                image: c.image,
+                imageUrl: c.imageUrl, // Presigned URL for display
                 original: c.original,
                 translation: c.translation,
+                // Back side fields
+                originalBack: c.originalBack,
+                translationBack: c.translationBack,
+                imageBack: c.imageBack,
+                imageBackUrl: c.imageBackUrl,
               ),
             )
             .toList();
@@ -558,13 +570,12 @@ class TestsStateManager extends StateManager<TestsState> {
             )
             .toList();
 
-        // Use stages if available, otherwise fallback to deprecated fields
-        final initialTargetCardId = stages.isNotEmpty
-            ? stages.first.targetCardId
-            : question.answer;
-        final initialTargetWord = stages.isNotEmpty
-            ? stages.first.targetWord
-            : question.word;
+        // Ensure stages are not empty
+        assert(stages.isNotEmpty, 'Matrix question must have at least one stage');
+
+        // Use stages for deprecated fields (for backward compatibility)
+        final initialTargetCardId = stages.first.targetCardId;
+        final initialTargetWord = stages.first.targetWord;
 
         questions.add(
           GameQuestion.matrix(
@@ -575,7 +586,6 @@ class TestsStateManager extends StateManager<TestsState> {
               stages: stages,
               initialTargetCardId: initialTargetCardId,
               initialTargetWord: initialTargetWord,
-              word: question.word,
               text: question.text,
             ),
           ),
diff --git a/mnemo_cards_web_v2/lib/domain/state/tests_state_manager.freezed.dart b/mnemo_cards_web_v2/lib/domain/state/tests_state_manager.freezed.dart
index 26f553f..d31a73b 100644
--- a/mnemo_cards_web_v2/lib/domain/state/tests_state_manager.freezed.dart
+++ b/mnemo_cards_web_v2/lib/domain/state/tests_state_manager.freezed.dart
@@ -12,11 +12,17 @@ part of 'tests_state_manager.dart';
 // dart format off
 T _$identity<T>(T value) => value;
 /// @nodoc
-mixin _$TestsState {
+mixin _$TestsState implements DiagnosticableTreeMixin {
 
 
 
 
+@override
+void debugFillProperties(DiagnosticPropertiesBuilder properties) {
+  properties
+    ..add(DiagnosticsProperty('type', 'TestsState'))
+    ;
+}
 
 @override
 bool operator ==(Object other) {
@@ -28,7 +34,7 @@ bool operator ==(Object other) {
 int get hashCode => runtimeType.hashCode;
 
 @override
-String toString() {
+String toString({ DiagnosticLevel minLevel = DiagnosticLevel.info }) {
   return 'TestsState()';
 }
 
@@ -134,7 +140,7 @@ return gameSessionCompleted(_that);case _:
 /// }
 /// ```
 
-@optionalTypeArgs TResult maybeWhen<TResult extends Object?>({TResult Function()?  loading,TResult Function( List<TestDto> tests,  String packId)?  loaded,TResult Function( String message)?  error,TResult Function( TestDto test,  List<GameQuestion> questions)?  gameSessionPreparing,TResult Function( TestDto test,  List<GameQuestion> questions,  int currentQuestionIndex,  GameSessionResult? currentResult,  Map<String, QuestionResult> questionResults,  bool isAnswerSubmitted,  bool isCorrect,  Duration? answerFeedbackDelay)?  gameSessionActive,TResult Function( TestDto test,  GameSessionResult result)?  gameSessionCompleted,required TResult orElse(),}) {final _that = this;
+@optionalTypeArgs TResult maybeWhen<TResult extends Object?>({TResult Function()?  loading,TResult Function( List<TestDto> tests,  String packId)?  loaded,TResult Function( String message)?  error,TResult Function( TestDto test,  List<GameQuestion> questions)?  gameSessionPreparing,TResult Function( TestDto test,  List<GameQuestion> questions,  int currentQuestionIndex,  GameSessionResult? currentResult,  Map<String, List<QuestionResult>> questionResults,  bool isAnswerSubmitted,  bool isCorrect,  Duration? answerFeedbackDelay)?  gameSessionActive,TResult Function( TestDto test,  GameSessionResult result)?  gameSessionCompleted,required TResult orElse(),}) {final _that = this;
 switch (_that) {
 case _Loading() when loading != null:
 return loading();case _Loaded() when loaded != null:
@@ -160,7 +166,7 @@ return gameSessionCompleted(_that.test,_that.result);case _:
 /// }
 /// ```
 
-@optionalTypeArgs TResult when<TResult extends Object?>({required TResult Function()  loading,required TResult Function( List<TestDto> tests,  String packId)  loaded,required TResult Function( String message)  error,required TResult Function( TestDto test,  List<GameQuestion> questions)  gameSessionPreparing,required TResult Function( TestDto test,  List<GameQuestion> questions,  int currentQuestionIndex,  GameSessionResult? currentResult,  Map<String, QuestionResult> questionResults,  bool isAnswerSubmitted,  bool isCorrect,  Duration? answerFeedbackDelay)  gameSessionActive,required TResult Function( TestDto test,  GameSessionResult result)  gameSessionCompleted,}) {final _that = this;
+@optionalTypeArgs TResult when<TResult extends Object?>({required TResult Function()  loading,required TResult Function( List<TestDto> tests,  String packId)  loaded,required TResult Function( String message)  error,required TResult Function( TestDto test,  List<GameQuestion> questions)  gameSessionPreparing,required TResult Function( TestDto test,  List<GameQuestion> questions,  int currentQuestionIndex,  GameSessionResult? currentResult,  Map<String, List<QuestionResult>> questionResults,  bool isAnswerSubmitted,  bool isCorrect,  Duration? answerFeedbackDelay)  gameSessionActive,required TResult Function( TestDto test,  GameSessionResult result)  gameSessionCompleted,}) {final _that = this;
 switch (_that) {
 case _Loading():
 return loading();case _Loaded():
@@ -185,7 +191,7 @@ return gameSessionCompleted(_that.test,_that.result);case _:
 /// }
 /// ```
 
-@optionalTypeArgs TResult? whenOrNull<TResult extends Object?>({TResult? Function()?  loading,TResult? Function( List<TestDto> tests,  String packId)?  loaded,TResult? Function( String message)?  error,TResult? Function( TestDto test,  List<GameQuestion> questions)?  gameSessionPreparing,TResult? Function( TestDto test,  List<GameQuestion> questions,  int currentQuestionIndex,  GameSessionResult? currentResult,  Map<String, QuestionResult> questionResults,  bool isAnswerSubmitted,  bool isCorrect,  Duration? answerFeedbackDelay)?  gameSessionActive,TResult? Function( TestDto test,  GameSessionResult result)?  gameSessionCompleted,}) {final _that = this;
+@optionalTypeArgs TResult? whenOrNull<TResult extends Object?>({TResult? Function()?  loading,TResult? Function( List<TestDto> tests,  String packId)?  loaded,TResult? Function( String message)?  error,TResult? Function( TestDto test,  List<GameQuestion> questions)?  gameSessionPreparing,TResult? Function( TestDto test,  List<GameQuestion> questions,  int currentQuestionIndex,  GameSessionResult? currentResult,  Map<String, List<QuestionResult>> questionResults,  bool isAnswerSubmitted,  bool isCorrect,  Duration? answerFeedbackDelay)?  gameSessionActive,TResult? Function( TestDto test,  GameSessionResult result)?  gameSessionCompleted,}) {final _that = this;
 switch (_that) {
 case _Loading() when loading != null:
 return loading();case _Loaded() when loaded != null:
@@ -204,7 +210,7 @@ return gameSessionCompleted(_that.test,_that.result);case _:
 /// @nodoc
 
 
-class _Loading implements TestsState {
+class _Loading with DiagnosticableTreeMixin implements TestsState {
   const _Loading();
   
 
@@ -212,6 +218,12 @@ class _Loading implements TestsState {
 
 
 
+@override
+void debugFillProperties(DiagnosticPropertiesBuilder properties) {
+  properties
+    ..add(DiagnosticsProperty('type', 'TestsState.loading'))
+    ;
+}
 
 @override
 bool operator ==(Object other) {
@@ -223,7 +235,7 @@ bool operator ==(Object other) {
 int get hashCode => runtimeType.hashCode;
 
 @override
-String toString() {
+String toString({ DiagnosticLevel minLevel = DiagnosticLevel.info }) {
   return 'TestsState.loading()';
 }
 
@@ -236,7 +248,7 @@ String toString() {
 /// @nodoc
 
 
-class _Loaded implements TestsState {
+class _Loaded with DiagnosticableTreeMixin implements TestsState {
   const _Loaded({required final  List<TestDto> tests, required this.packId}): _tests = tests;
   
 
@@ -256,6 +268,12 @@ class _Loaded implements TestsState {
 _$LoadedCopyWith<_Loaded> get copyWith => __$LoadedCopyWithImpl<_Loaded>(this, _$identity);
 
 
+@override
+void debugFillProperties(DiagnosticPropertiesBuilder properties) {
+  properties
+    ..add(DiagnosticsProperty('type', 'TestsState.loaded'))
+    ..add(DiagnosticsProperty('tests', tests))..add(DiagnosticsProperty('packId', packId));
+}
 
 @override
 bool operator ==(Object other) {
@@ -267,7 +285,7 @@ bool operator ==(Object other) {
 int get hashCode => Object.hash(runtimeType,const DeepCollectionEquality().hash(_tests),packId);
 
 @override
-String toString() {
+String toString({ DiagnosticLevel minLevel = DiagnosticLevel.info }) {
   return 'TestsState.loaded(tests: $tests, packId: $packId)';
 }
 
@@ -310,7 +328,7 @@ as String,
 /// @nodoc
 
 
-class _Error implements TestsState {
+class _Error with DiagnosticableTreeMixin implements TestsState {
   const _Error(this.message);
   
 
@@ -323,6 +341,12 @@ class _Error implements TestsState {
 _$ErrorCopyWith<_Error> get copyWith => __$ErrorCopyWithImpl<_Error>(this, _$identity);
 
 
+@override
+void debugFillProperties(DiagnosticPropertiesBuilder properties) {
+  properties
+    ..add(DiagnosticsProperty('type', 'TestsState.error'))
+    ..add(DiagnosticsProperty('message', message));
+}
 
 @override
 bool operator ==(Object other) {
@@ -334,7 +358,7 @@ bool operator ==(Object other) {
 int get hashCode => Object.hash(runtimeType,message);
 
 @override
-String toString() {
+String toString({ DiagnosticLevel minLevel = DiagnosticLevel.info }) {
   return 'TestsState.error(message: $message)';
 }
 
@@ -376,7 +400,7 @@ as String,
 /// @nodoc
 
 
-class _GameSessionPreparing implements TestsState {
+class _GameSessionPreparing with DiagnosticableTreeMixin implements TestsState {
   const _GameSessionPreparing({required this.test, required final  List<GameQuestion> questions}): _questions = questions;
   
 
@@ -396,6 +420,12 @@ class _GameSessionPreparing implements TestsState {
 _$GameSessionPreparingCopyWith<_GameSessionPreparing> get copyWith => __$GameSessionPreparingCopyWithImpl<_GameSessionPreparing>(this, _$identity);
 
 
+@override
+void debugFillProperties(DiagnosticPropertiesBuilder properties) {
+  properties
+    ..add(DiagnosticsProperty('type', 'TestsState.gameSessionPreparing'))
+    ..add(DiagnosticsProperty('test', test))..add(DiagnosticsProperty('questions', questions));
+}
 
 @override
 bool operator ==(Object other) {
@@ -407,7 +437,7 @@ bool operator ==(Object other) {
 int get hashCode => Object.hash(runtimeType,test,const DeepCollectionEquality().hash(_questions));
 
 @override
-String toString() {
+String toString({ DiagnosticLevel minLevel = DiagnosticLevel.info }) {
   return 'TestsState.gameSessionPreparing(test: $test, questions: $questions)';
 }
 
@@ -450,8 +480,8 @@ as List<GameQuestion>,
 /// @nodoc
 
 
-class _GameSessionActive implements TestsState {
-  const _GameSessionActive({required this.test, required final  List<GameQuestion> questions, required this.currentQuestionIndex, required this.currentResult, required final  Map<String, QuestionResult> questionResults, required this.isAnswerSubmitted, required this.isCorrect, this.answerFeedbackDelay}): _questions = questions,_questionResults = questionResults;
+class _GameSessionActive with DiagnosticableTreeMixin implements TestsState {
+  const _GameSessionActive({required this.test, required final  List<GameQuestion> questions, required this.currentQuestionIndex, required this.currentResult, required final  Map<String, List<QuestionResult>> questionResults, required this.isAnswerSubmitted, required this.isCorrect, this.answerFeedbackDelay}): _questions = questions,_questionResults = questionResults;
   
 
  final  TestDto test;
@@ -464,8 +494,8 @@ class _GameSessionActive implements TestsState {
 
  final  int currentQuestionIndex;
  final  GameSessionResult? currentResult;
- final  Map<String, QuestionResult> _questionResults;
- Map<String, QuestionResult> get questionResults {
+ final  Map<String, List<QuestionResult>> _questionResults;
+ Map<String, List<QuestionResult>> get questionResults {
   if (_questionResults is EqualUnmodifiableMapView) return _questionResults;
   // ignore: implicit_dynamic_type
   return EqualUnmodifiableMapView(_questionResults);
@@ -482,6 +512,12 @@ class _GameSessionActive implements TestsState {
 _$GameSessionActiveCopyWith<_GameSessionActive> get copyWith => __$GameSessionActiveCopyWithImpl<_GameSessionActive>(this, _$identity);
 
 
+@override
+void debugFillProperties(DiagnosticPropertiesBuilder properties) {
+  properties
+    ..add(DiagnosticsProperty('type', 'TestsState.gameSessionActive'))
+    ..add(DiagnosticsProperty('test', test))..add(DiagnosticsProperty('questions', questions))..add(DiagnosticsProperty('currentQuestionIndex', currentQuestionIndex))..add(DiagnosticsProperty('currentResult', currentResult))..add(DiagnosticsProperty('questionResults', questionResults))..add(DiagnosticsProperty('isAnswerSubmitted', isAnswerSubmitted))..add(DiagnosticsProperty('isCorrect', isCorrect))..add(DiagnosticsProperty('answerFeedbackDelay', answerFeedbackDelay));
+}
 
 @override
 bool operator ==(Object other) {
@@ -493,7 +529,7 @@ bool operator ==(Object other) {
 int get hashCode => Object.hash(runtimeType,test,const DeepCollectionEquality().hash(_questions),currentQuestionIndex,currentResult,const DeepCollectionEquality().hash(_questionResults),isAnswerSubmitted,isCorrect,answerFeedbackDelay);
 
 @override
-String toString() {
+String toString({ DiagnosticLevel minLevel = DiagnosticLevel.info }) {
   return 'TestsState.gameSessionActive(test: $test, questions: $questions, currentQuestionIndex: $currentQuestionIndex, currentResult: $currentResult, questionResults: $questionResults, isAnswerSubmitted: $isAnswerSubmitted, isCorrect: $isCorrect, answerFeedbackDelay: $answerFeedbackDelay)';
 }
 
@@ -505,7 +541,7 @@ abstract mixin class _$GameSessionActiveCopyWith<$Res> implements $TestsStateCop
   factory _$GameSessionActiveCopyWith(_GameSessionActive value, $Res Function(_GameSessionActive) _then) = __$GameSessionActiveCopyWithImpl;
 @useResult
 $Res call({
- TestDto test, List<GameQuestion> questions, int currentQuestionIndex, GameSessionResult? currentResult, Map<String, QuestionResult> questionResults, bool isAnswerSubmitted, bool isCorrect, Duration? answerFeedbackDelay
+ TestDto test, List<GameQuestion> questions, int currentQuestionIndex, GameSessionResult? currentResult, Map<String, List<QuestionResult>> questionResults, bool isAnswerSubmitted, bool isCorrect, Duration? answerFeedbackDelay
 });
 
 
@@ -529,7 +565,7 @@ as TestDto,questions: null == questions ? _self._questions : questions // ignore
 as List<GameQuestion>,currentQuestionIndex: null == currentQuestionIndex ? _self.currentQuestionIndex : currentQuestionIndex // ignore: cast_nullable_to_non_nullable
 as int,currentResult: freezed == currentResult ? _self.currentResult : currentResult // ignore: cast_nullable_to_non_nullable
 as GameSessionResult?,questionResults: null == questionResults ? _self._questionResults : questionResults // ignore: cast_nullable_to_non_nullable
-as Map<String, QuestionResult>,isAnswerSubmitted: null == isAnswerSubmitted ? _self.isAnswerSubmitted : isAnswerSubmitted // ignore: cast_nullable_to_non_nullable
+as Map<String, List<QuestionResult>>,isAnswerSubmitted: null == isAnswerSubmitted ? _self.isAnswerSubmitted : isAnswerSubmitted // ignore: cast_nullable_to_non_nullable
 as bool,isCorrect: null == isCorrect ? _self.isCorrect : isCorrect // ignore: cast_nullable_to_non_nullable
 as bool,answerFeedbackDelay: freezed == answerFeedbackDelay ? _self.answerFeedbackDelay : answerFeedbackDelay // ignore: cast_nullable_to_non_nullable
 as Duration?,
@@ -554,7 +590,7 @@ $GameSessionResultCopyWith<$Res>? get currentResult {
 /// @nodoc
 
 
-class _GameSessionCompleted implements TestsState {
+class _GameSessionCompleted with DiagnosticableTreeMixin implements TestsState {
   const _GameSessionCompleted({required this.test, required this.result});
   
 
@@ -568,6 +604,12 @@ class _GameSessionCompleted implements TestsState {
 _$GameSessionCompletedCopyWith<_GameSessionCompleted> get copyWith => __$GameSessionCompletedCopyWithImpl<_GameSessionCompleted>(this, _$identity);
 
 
+@override
+void debugFillProperties(DiagnosticPropertiesBuilder properties) {
+  properties
+    ..add(DiagnosticsProperty('type', 'TestsState.gameSessionCompleted'))
+    ..add(DiagnosticsProperty('test', test))..add(DiagnosticsProperty('result', result));
+}
 
 @override
 bool operator ==(Object other) {
@@ -579,7 +621,7 @@ bool operator ==(Object other) {
 int get hashCode => Object.hash(runtimeType,test,result);
 
 @override
-String toString() {
+String toString({ DiagnosticLevel minLevel = DiagnosticLevel.info }) {
   return 'TestsState.gameSessionCompleted(test: $test, result: $result)';
 }
 
diff --git a/mnemo_cards_web_v2/lib/presentation/pages/game/game_page.dart b/mnemo_cards_web_v2/lib/presentation/pages/game/game_page.dart
index 293f07e..a9e1dcc 100644
--- a/mnemo_cards_web_v2/lib/presentation/pages/game/game_page.dart
+++ b/mnemo_cards_web_v2/lib/presentation/pages/game/game_page.dart
@@ -251,7 +251,7 @@ class _GamePageState extends State<GamePage> {
     int currentQuestionIndex,
     bool isAnswerSubmitted,
     bool isCorrect,
-    Map<String, QuestionResult> questionResults,
+    Map<String, List<QuestionResult>> questionResults,
     Duration sessionElapsed,
   ) {
     final theme = Theme.of(context);
@@ -296,6 +296,7 @@ class _GamePageState extends State<GamePage> {
                             currentQuestion: currentQuestionIndex,
                             totalQuestions: questions.length,
                             correctAnswers: questionResults.values
+                                .expand((results) => results)
                                 .where((r) => r.isCorrect)
                                 .length,
                             timeElapsed: sessionElapsed,
@@ -889,11 +890,11 @@ class _GamePageState extends State<GamePage> {
 
   String? _getSelectedAnswerForMultipleChoice(
     MultipleChoiceQuestion question,
-    Map<String, QuestionResult> questionResults,
+    Map<String, List<QuestionResult>> questionResults,
   ) {
     final questionId = question.id;
-    final result = questionResults[questionId];
-    return result?.selectedAnswer;
+    final results = questionResults[questionId];
+    return results?.isNotEmpty == true ? results!.first.selectedAnswer : null;
   }
 
   Color _scoreColor(ColorScheme colorScheme, int score) {
diff --git a/mnemo_cards_web_v2/lib/presentation/pages/playground/mock_data.dart b/mnemo_cards_web_v2/lib/presentation/pages/playground/mock_data.dart
index 217284b..e6e8202 100644
--- a/mnemo_cards_web_v2/lib/presentation/pages/playground/mock_data.dart
+++ b/mnemo_cards_web_v2/lib/presentation/pages/playground/mock_data.dart
@@ -127,54 +127,72 @@ final mockMatrixQuestion = MatrixQuestion(
       image: 'https://via.placeholder.com/100x100?text=1',
       original: 'Apple',
       translation: 'Яблоко',
+      originalBack: 'Apple',
+      translationBack: 'Яблоко',
     ),
     MatrixCard(
       id: 'card2',
       image: 'https://via.placeholder.com/100x100?text=2',
       original: 'Orange',
       translation: 'Апельсин',
+      originalBack: 'Orange',
+      translationBack: 'Апельсин',
     ),
     MatrixCard(
       id: 'card3',
       image: 'https://via.placeholder.com/100x100?text=3',
       original: 'Banana',
       translation: 'Банан',
+      originalBack: 'Banana',
+      translationBack: 'Банан',
     ),
     MatrixCard(
       id: 'card4',
       image: 'https://via.placeholder.com/100x100?text=4',
       original: 'Grape',
       translation: 'Виноград',
+      originalBack: 'Grape',
+      translationBack: 'Виноград',
     ),
     MatrixCard(
       id: 'card5',
       image: 'https://via.placeholder.com/100x100?text=5',
       original: 'Cherry',
       translation: 'Вишня',
+      originalBack: 'Cherry',
+      translationBack: 'Вишня',
     ),
     MatrixCard(
       id: 'card6',
       image: 'https://via.placeholder.com/100x100?text=6',
       original: 'Strawberry',
       translation: 'Клубника',
+      originalBack: 'Strawberry',
+      translationBack: 'Клубника',
     ),
     MatrixCard(
       id: 'card7',
       image: 'https://via.placeholder.com/100x100?text=7',
       original: 'Watermelon',
       translation: 'Арбуз',
+      originalBack: 'Watermelon',
+      translationBack: 'Арбуз',
     ),
     MatrixCard(
       id: 'card8',
       image: 'https://via.placeholder.com/100x100?text=8',
       original: 'Pineapple',
       translation: 'Ананас',
+      originalBack: 'Pineapple',
+      translationBack: 'Ананас',
     ),
     MatrixCard(
       id: 'card9',
       image: 'https://via.placeholder.com/100x100?text=9',
       original: 'Mango',
       translation: 'Манго',
+      originalBack: 'Mango',
+      translationBack: 'Манго',
     ),
   ],
   stages: [
@@ -194,6 +212,6 @@ final mockMatrixQuestion = MatrixQuestion(
       targetAudio: null,
     ),
   ],
-  word: 'apple',
+  initialTargetWord: 'Apple',
   type: 'matrix',
 );
diff --git a/mnemo_cards_web_v2/lib/presentation/widgets/game/matrix_widget.dart b/mnemo_cards_web_v2/lib/presentation/widgets/game/matrix_widget.dart
index 06f17fd..941fa13 100644
--- a/mnemo_cards_web_v2/lib/presentation/widgets/game/matrix_widget.dart
+++ b/mnemo_cards_web_v2/lib/presentation/widgets/game/matrix_widget.dart
@@ -547,49 +547,7 @@ class _MatrixFlipCard extends StatelessWidget {
               child: ClipRRect(
                 borderRadius: BorderRadius.circular(21.r),
                 child: isBack
-                    ? Transform(
-                        alignment: Alignment.center,
-                        transform: Matrix4.identity()..rotateY(math.pi),
-                        child: Center(
-                          child: Padding(
-                            padding: EdgeInsets.all(24.w),
-                            child: Column(
-                              mainAxisAlignment: MainAxisAlignment.center,
-                              children: [
-                                if (card.original != null)
-                                  Text(
-                                    card.original!,
-                                    style: TextStyle(
-                                      fontSize: 28,
-                                      fontWeight: FontWeight.w700,
-                                      color: colorScheme.onSurface,
-                                    ),
-                                    textAlign: TextAlign.center,
-                                    maxLines: 2,
-                                    overflow: TextOverflow.ellipsis,
-                                  ),
-                                if (card.original != null &&
-                                    card.translation != null)
-                                  SizedBox(height: 12.h),
-                                if (card.translation != null)
-                                  Text(
-                                    card.translation!,
-                                    style: TextStyle(
-                                      fontSize: 22,
-                                      fontWeight: FontWeight.w400,
-                                      color: colorScheme.onSurface.withOpacity(
-                                        0.5,
-                                      ),
-                                    ),
-                                    textAlign: TextAlign.center,
-                                    maxLines: 2,
-                                    overflow: TextOverflow.ellipsis,
-                                  ),
-                              ],
-                            ),
-                          ),
-                        ),
-                      )
+                    ? _buildCardBack(card, colorScheme)
                     : _buildCardFront(card, colorScheme),
               ),
             ),
@@ -600,7 +558,9 @@ class _MatrixFlipCard extends StatelessWidget {
   }
 
   Widget _buildCardFront(MatrixCard card, ColorScheme colorScheme) {
-    final hasImage = card.image != null && card.image!.isNotEmpty;
+    // Front side: use only front fields
+    final frontImage = card.imageUrl ?? card.image;
+    final hasImage = frontImage != null && frontImage.isNotEmpty;
     final hasOriginal = card.original != null && card.original!.isNotEmpty;
     final hasTranslation =
         card.translation != null && card.translation!.isNotEmpty;
@@ -648,7 +608,7 @@ class _MatrixFlipCard extends StatelessWidget {
     // If only image (no text), show image full size
     if (hasImage && !hasText) {
       return Image.network(
-        card.image!,
+        frontImage!,
         fit: BoxFit.cover,
         width: double.infinity,
         errorBuilder: (context, error, stackTrace) {
@@ -701,7 +661,7 @@ class _MatrixFlipCard extends StatelessWidget {
           ),
           Expanded(
             child: Image.network(
-              card.image!,
+              frontImage!,
               fit: BoxFit.cover,
               width: double.infinity,
               errorBuilder: (context, error, stackTrace) {
@@ -746,4 +706,68 @@ class _MatrixFlipCard extends StatelessWidget {
       ),
     );
   }
+
+  Widget _buildCardBack(MatrixCard card, ColorScheme colorScheme) {
+    // Back side: use only back fields
+    final backImage = card.imageBackUrl ?? card.imageBack;
+    final hasImage = backImage != null && backImage.isNotEmpty;
+    final hasOriginal = card.originalBack != null && card.originalBack!.isNotEmpty;
+    final hasTranslation =
+        card.translationBack != null && card.translationBack!.isNotEmpty;
+    final hasText = hasOriginal || hasTranslation;
+
+    return Transform(
+      alignment: Alignment.center,
+      transform: Matrix4.identity()..rotateY(math.pi),
+      child: Center(
+        child: Padding(
+          padding: EdgeInsets.all(24.w),
+          child: hasImage && !hasText
+              ? Image.network(
+                  backImage!,
+                  fit: BoxFit.cover,
+                  width: double.infinity,
+                  errorBuilder: (context, error, stackTrace) {
+                    return Center(
+                      child: Icon(
+                        Icons.image_not_supported,
+                        color: colorScheme.onSurfaceVariant,
+                      ),
+                    );
+                  },
+                )
+              : Column(
+                  mainAxisAlignment: MainAxisAlignment.center,
+                  children: [
+                    if (hasOriginal)
+                      Text(
+                        card.originalBack!,
+                        style: TextStyle(
+                          fontSize: 28,
+                          fontWeight: FontWeight.w700,
+                          color: colorScheme.onSurface,
+                        ),
+                        textAlign: TextAlign.center,
+                        maxLines: 2,
+                        overflow: TextOverflow.ellipsis,
+                      ),
+                    if (hasOriginal && hasTranslation) SizedBox(height: 12.h),
+                    if (hasTranslation)
+                      Text(
+                        card.translationBack!,
+                        style: TextStyle(
+                          fontSize: 22,
+                          fontWeight: FontWeight.w400,
+                          color: colorScheme.onSurface.withOpacity(0.5),
+                        ),
+                        textAlign: TextAlign.center,
+                        maxLines: 2,
+                        overflow: TextOverflow.ellipsis,
+                      ),
+                  ],
+                ),
+        ),
+      ),
+    );
+  }
 }