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Referenced by SomeEndgameProblem4
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Some endgame problem 4 solution
![[Diagram]](../../diagrams/40/2a3bcf9f5407fea155088771af62b9d9.png) | Black to play |
This position is hyperactive. Correct play depends on the ko threat situation.
![[Diagram]](../../diagrams/31/834ff434e3d3a40bf8f289cbef3cdaf6.png) | White komaster |
When White is komaster saves the stones. Later, - is sente. (Somewhat sneakily, Wa instead is also sente. ;-)) Then a, b, c, and d are miai.
![[Diagram]](../../diagrams/6/acd2615ce9dfc59f7583a03fd53cf6ec.png) | Black komaster |
When Black is komaster he can play more enterprisingly, with - .
![[Diagram]](../../diagrams/3/8f7b398cf2f07566310712af9e541353.png) | Black komaster (ii) |
That leaves behind a large throw-in ko at . But Black takes first with , forcing . Now saves his stones. White still has a sente ko with - Ba. (Since Black is komaster, White will avoid this ko.)
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"Some endgame problem 4 solution" at
Sensei's Library.
2004 the Authors, published under the OpenContent License V1.0.
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