Shift Tac Toe

Two players play Tic-Tac-Toe on a "Connect Four" type board (meaning placing a disk sends it to the bottom first). On their turn, a player can drop a disc in, or slide a row one space to the left or right. Since the board is a 3x3, slides can sometimes send pieces out of the unit and back into regular play. The first to achieve 3-in-a-row is the winner.