Update app.py

app.py

@@ -236,7 +236,7 @@ def create_gui():
         # Event handlers
         board.select(
             make_move,
-            [board.selected[0][0], board.selected[0][1], game_mode, difficulty],
+            [board.select()[0][0], board.select()[0][1], game_mode, difficulty],
             [board, status]
         )
         reset_btn.click(