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Referenced by BeginnersEndgameE...
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BeginnersEndgameExercise5/Solution
![[Diagram]](../../diagrams/29/ecf075adc0214f85e6634d7e392a8963.png) | White wins by 1 point |
takes away Black's potential eye in the center, setting up an eventual sente for White against Black's group. Black can do no better than to respond with and right away.
![[Diagram]](../../diagrams/50/7a196797fd558b0300fe55ed832b30c2.png) | Variation 1 |
is urgent, a 2-point reverse sente. (If , Black must respond at a to live.)
White still wins by 1.
![[Diagram]](../../diagrams/50/7e6d86e56f4da5c87a27fef101dee337.png) | Variation 2 |
(Starting after .)
If at , kills.
White still wins by 1.
![[Diagram]](../../diagrams/18/ba667d7293c686ba33549816b9b43bbb.png) | Jigo |
The sente, - , is tempting, but is aji keshi, securing 2 eyes for Black and reducing the value of White's plays on the right side and in the center.[1]
is now best, but after the top and right sides are miai, to be shared equally. All White can get now is jigo.
( - is a losing sente, losing 1/32 point on average. Usually such a small error will cost nothing in the end, but this is a problem. ;-))
Authors:
Composed by Bill Spight.
Solution found by LukeNine45.
[1]
Inspired by an inaccuracy in http://www.yomiuri.co.jp/igo_e/281.htm , where the aji keshi did not cost a point.
This is a copy of the living page
"BeginnersEndgameExercise5/Solution" at
Sensei's Library.
2004 the Authors, published under the OpenContent License V1.0.
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