Similar to the classic game of tic-tac–toe, this game is played on four vertically stacked 4x4 grids. A player must place four symbols vertically, horizontally or diagonally on four squares. There are 76 ways to win. This is in contrast to the eight ways you can win on a standard 3x3 board. You can either play it against another player or against an AI built into the board on one of eight difficulty levels.