In this solitaire game the object is to remove all pieces from the board. When you click on a square, it and its horizontal and vertical neighbors will be "flipped": if there is a piece on the square, it will be removed, and if there is no piece one will be added. The game starts with a random arrangement of pieces, and you win when you remove all of them.

All the pieces can be removed in two moves. Clicking on the highlighted square will remove the three pieces on the edge, and add a piece directly to the left. This will result in five pieces in a plus pattern, all of which can be removed by clicking the center piece.