Changing difficulty or mark starts a fresh round.
Take turns placing your mark on an empty square. Connect five or more marks — across, down, or diagonally — to win.
Tap an empty square to aim, then tap it again or press Place. Drag to move around; pinch or use + / − to zoom. Tap the percentage to fit the whole board.
With “Block both ends” on, a line needs at least one empty end. The board edge counts as a closed end.
Play against the computer or pass your phone to a friend. The first move alternates each round.
On desktop: use arrow keys to aim, Enter to select, then Enter to place.
Scores and rounds are saved separately for each game on this device.