Take turns drawing a line between two adjacent dots. Complete the fourth side of a box to claim it and go again — most boxes wins.
Controls
- Tap/click the gap between two dots to draw a line
- Tab to the board, use arrow keys to choose an edge, then Enter or Space to draw it.
- The numbers in claimed boxes show their player. Completing a box gives you another turn.
- Choose 3×3, 5×5 or 7×7. Restarting an unfinished game asks before clearing the board.