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Board games
Board game

Go 19x19

Surround more of the board than your opponent.

Board
19x19
Family
Territory
go19
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Play

Starting a game records your moves under your name. Sign in to play

The clock starts once the first move is made; the solver plays itself untimed.

How to play

Black and White take turns placing a stone on an empty crossing, or pass. A group of stones with no empty crossing beside it is captured. You may not play where your own group would have no liberty unless the stone captures, and you may not recreate an earlier position. Two passes in a row end the game: each side counts its stones plus the empty areas only it surrounds, and White adds 7.5. Dead stones are not removed by agreement, so capture them before you pass.

Beside chess

The other great board game of strategy, as old as chess's ancestors: no piece has a role of its own, and a game is won by the balance of the whole board rather than by one king.

Moves are written as the cells they touch: d4, e2e4, c3e5g7, or pass.

Quick pairing

Pick a clock. You meet the closest rating waiting in that pool; the range widens while you wait.

Nobody waiting

Sign in to play. Games record moves under your name.

Lobby

Create a game or challenge a player
Your side

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