Point is to take the opposite corner, ahead of a computer. Both sides have the same number of moves. If the player occupies the opposite corner, and on the next move the computer does the same, the game ends in a draw. To make a move, you need to click on a checker, and then on an endpoint in the chain of movements. At any time you can start the game again by clicking on "Restart?" (appears after the first move). "Sound" is turning off at the bottom left. There you can also choose the game type: 3x3 (corners of 9 checkers) or 4x3 (12 checkers). At very beginning of a game, before a first move, you can choose the other side by clicking on the arrows icon (between a moves counters, under the caption "Corners").