On a sheet mark a regular tit-tat-to diagram in black point. Stretch the sheet so it will be smooth on the floor. Divide the company into sides, a captain being appointed for each side. Call one side the crosses and the other side the zeros.

When a signal is given, the captain of one side takes his position in any one of the squares of the diagram. The captain of the other side follows, taking his position, then a player of the first side takes his position endeavoring to be in a row with the first move, so the next player on his side will form the third cross or zero, as the case may be, in the row, either straight or diagonally, and win the game for that side.

The winning side then changes to zeros if they were crosses or vice versa. Let each player have a turn, as there are only nine squares, and as the game may be won before they are all filled, some may not have a chance to play. It is best, when playing a new game, to let those who did not play before have first play.