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Fujitsu 8 Game 9 Solution
Black has to play at 1 to prevent seki. Black can only avoid seki by ignoring a ko threat, which costs too much to be acceptable.
Black can't afford to play the ko at a, and has to settle for a seki at b. This is a copy of the living page "Fujitsu 8 Game 9 Solution" at Sensei's Library. (C) the Authors, published under the OpenContent License V1.0. |