...

packages/feature_game_sudoku/lib/feature_game_sudoku.dart

@@ -2,5 +2,5 @@
 
 // app_sudoku가 IntroScreen의 다음 화면으로 사용할 '로비 화면'
 export 'screens/sudoku_lobby_screen.dart';
-
+export 'screens/game_screen.dart';
 // (GameScreen 등은 로비 화면만 알면 되므로 굳이 export 안 해도 됨)

packages/feature_game_sudoku/lib/screens/game_screen.dart

@@ -10,7 +10,7 @@ import '../widgets/number_pad.dart';
 import '../widgets/sudoku_board.dart';
 import '../models/game_level.dart';
 
-class GameScreen extends StatefulWidget {
+class GameScreen extends BaseGameScreen {
   final SudokuGameDto gameData;
   final String themeName;
   final String userId;
@@ -24,6 +24,7 @@ class GameScreen extends StatefulWidget {
     required this.userId,
     required this.userName,
     required this.levelIndex,
+    super.onNextGame,
   });
 
   @override