How to change the game board size
You can select a field size at the start of the application.
以下からフィールドの大きさを選択します。
8 × 8 (地雷10個)
16 × 16 (地雷40個)
30 × 16 (地雷99個)
a custom board, where you chose the size and the number of mines
To change the board size later, press the Change Difficulty button on the right.