ueberfluessige deepcopy

tictactoe.py

@@ -207,9 +207,8 @@ class TicTacToe():
 
     def _evaluate_move(self, i, j, grid, current_player):
         """Evaluate a single move in isolation for parallel processing"""
-        grid_copy = copy.deepcopy(grid)
-        grid_copy[i, j] = current_player
-        return self._evaluate_recursively(grid_copy, get_opponent(current_player)), (i, j)
+        grid[i, j] = current_player
+        return self._evaluate_recursively(grid, get_opponent(current_player)), (i, j)
 
     def get_best_move_parallel(self, player: Player | int) -> tuple[int, int]:
         """Parallel version of get_best_move using ProcessPoolExecutor"""
@@ -235,7 +234,6 @@ class TicTacToe():
                         for f in futures:
                             f.cancel()
                         break
-        
         return best_move
 
 if __name__ == "__main__":