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364463 enclosure
Difficulty: Dan level
Keywords: Opening, Life & Death
This enclosure is often deprecated: the 3-3 invasion in it is in theory something Black can kill. But it is difficult, and in practice Black cannot rely on it.
An example has just occurred in game 4 of the 2003 Kisei match Yamashita Keigo-O Rissei (colours reversed). After the 3-3 invasion Black 2 here was played, which is a textbook attempt to kill.
Yamashita, however, challenged his opponent to kill him, playing 3, 5, and 7. O Rissei then resigned, leaving us with a reading problem, given the exact placing of nearby stones.
Here is the position in the game with surrounding stones. This is a copy of the living page "364463 enclosure" at Sensei's Library. ![]() |