Go

How to play

Finish with the larger AGA area score: stones plus surrounded empty intersections for each color, with 7.5 komi added to White after both players pass.

• All eighty-one intersections begin empty, Black moves first, White receives 7.5 komi, and the engine records every distinct board position needed to enforce positional superko.
• Place one stone on an empty intersection, then remove every adjacent opposing group left without a liberty. Your placed group must retain a liberty after captures, and its resulting board may not repeat any earlier board position. Passing is always legal and two consecutive passes finish play.
• Finish with the larger AGA area score: stones plus surrounded empty intersections for each color, with 7.5 komi added to White after both players pass.

Strategy tips

• Secure efficient corner territory, connect weak stones before they are cut, compare local captures with whole-board sente, and read liberties through the complete exchange rather than stopping at the first atari.
• An apparent capture may be suicide if the target group still has another liberty, while a locally legal recapture can remain forbidden because positional superko compares the complete board with every prior position.
• Close the largest open boundaries first, avoid filling points already owned by your living groups, and count both players' stones and territory before deciding that a pass is safe.