Go. The board is the territory.

9×9 / 13×13 / 19×19 boards, Chinese scoring, byoyomi clock. Surround and capture, pass to score. Every capture below is real engine output, not a drawing.

19×19 board Chinese scoring vs AI mode

Place a stone on any intersection. Columns run A–T (skipping I), rows 1–19 from the bottom. You play black and move first. Cut off every liberty of a group to capture it. Two passes end the game, then territory plus 7.5 komi to white decides it.