Super tic-tac-toe is played in a 3x3 grid of grids. Each player makes a move in a normal tic-tac-toe grid, however their move will send their opponent to the corresponding game on the 3 x 3 board. For example, if a player chooses to place an X in the middle square of the top-left grid, the next player must place an O in the tic-tac-toe grid in the center of the 3 x 3 super-grid.