Play consists of taking turns placing the 12 pieces on the board. The game may be played on any of the available boards.
The pieces may be rotated or flipped in any way, but no overlapping of pieces is allowed.
When no move is possible, the person who put the last piece on is the winner. In other words, if you can't move, you lose.
The Master level is pretty hard to beat, so if it's too hard you might try an easier level. The first four levels are the same as the first four in version 4.0.
The OPTIONS menu lets you determine who moves first, and if you want to play against another person or the computer. If you're playing the computer, FIRST ALTERNATES makes the first player toggle between you and the computer.