Classic mode: To meet the different preferences of everyone, has introduced a color selection function, you can choose your favorite color for the game.
Eliminate mode: drag the box into the form, a row or a column can be eliminated.
The game is divided into two modes of day and night.
2. Click the back button, then click the restart button, you can restart the game.
3. Click the exit button to save the game state, so you can continue to play next time.
Update ui