Color all of the squares on the board by moving chess pieces over them. Pieces move as they do in chess but the puzzles can be tough. Complete all 70 levels and if you get stuck you can always click the video link below to go to the page on MathNook that has the walkthrough video on it.
On touch devices move the chess pieces by swiping on the pieces with touch in the direction you want the piece to move. Using a mouse, move a piece by left clicking on it and moving the mouse while holding the left mouse button down.