Tap any problem in the list/grid view will go to test view directly。The title on the navigation bar will show the game number and who is first to move.
You can tap the config button on the right of navigation bar to turn on/off the sound effect, show coordinate, show move number.
Tap directly on the board to make your move. If your move is beyond the variations the problem knows, a red checkbox will be shown for a while, you can try again.
The program will try to respond to your move if it knows, when the variation tree end reaches, the result will be shown.
