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Tsumego From Games 20
Path: TsumegoFromGames · Prev: TsumegoFromGames19 · Next: This came out today in a game. White thought that the group at the corner is alive. Is this so? --unkx80
During the game, Black played 1. After Black 5, a and b are miai, and White is killed by shortage of liberties. White resigned soon after that.
White 2 provides another path of resistance. However, up to the Black 7, the White group is dead by bulky five. It does not matter if White 2 plays at 4 first. But--
The sagari by White at 2 is the correct move which both players failed to see. To stop White from connecting underneath Black plays at 3, but White 4 ensures life. After that, a and b are miai.
The real solution is actually the placement at 1. The best sequence is from 2 to 7, which results in a two stage ko?.
White 2 followed by 4 is yet another variation. Up to Black 7, it is still a ko, but the ko is worse off for White compared to the previous diagram. Path: TsumegoFromGames · Prev: TsumegoFromGames19 · Next: This is a copy of the living page "Tsumego From Games 20" at Sensei's Library. (C) the Authors, published under the OpenContent License V1.0. |