- Source: Wild tic-tac-toe
Wild tic-tac-toe is an impartial game similar to tic-tac-toe. However, in this game players can choose to place either X or O on each move. This game can also be played in its misere form where if a player creates a three-in-a-row of marks, that player loses the game.
Regular game
Wild tic-tac-toe is played on a 3-by-3 board by two players, who take turns placing an X or an O on any unoccupied square. The player who completes a straight or diagonal line of 3 X's or 3 O’s wins. In this version of the game, the player which makes the first move can always win.
Misere game
This game is exactly like the regular version of the game except the player who creates a line of any three marks (Xs or Os) in a row loses the game.
The second player can force a draw by playing a mark opposite of the opponent's mark and choosing X if the opponent chose O (or vice versa).
See also
Tic-tac-toe variants