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What exactly does the ko rule forbid?
The rulebook states the ko rule.
- Go rulebook · Rulebook · Ko (Repetition)
- rri1 · Community · 2007-12-26
- wmshub · Community · 2007-12-26
You may not play a move that recreates the board position that existed just before the opponent's last move. After a ko capture you must play elsewhere for a turn before recapturing.