This twist on the classic game of tic-tac-toe adds a new dimension in strategy by having you not just choose a square, but also call out where your next move has to be.
Can you think far enough ahead to beat your opponent?
At the start of each move, you can only mark an open square pointed to by your last move. The game board will shade your valid moves.
Touch a square to mark it, then continue tapping it to cycle through the available arrows. For each arrow shown, the squares you can pick from on your next move will be shaded.
When you have chosen your square and arrow, hit the "Done" button.
If there are no longer open squares in the direction your last arrow, you lose your turn.
On your next turn, you can chose any square.