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Problem revised July 1997 following error reported by Matti Siivola.
The status is: Black can kill. White can live with territory.
This is sufficiently obvious that I'm not wasting bandwidth including a diagram.
4 at
triangle.
There are several sequences that white can play that lead to one eye. Many involve snapbacks such as occur if white 5 captures 2 here.
White starts with the unlikely move of 1 which is bound to be captured and with 3 extends his sacrificial offer. 5 is that well known "under the stones" tesuji. Black's attempts (6 and 8) to falsify the eye fail and White lives - albeit just with two points.
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British Go Association
Last updated 2004-08-10
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