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Referenced by BeginnerExercise53
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Beginner Exercise 53 Solution
Difficulty: Beginner
Keywords: Problem
![[Diagram]](../../diagrams/16/1fccbc01d644a2d487e4b76a8a1361df.png) | White first to kill |
Black can only get one eye out of the 2x2 space, unless Black can make two diagonal moves in there. After , Black must connect to live and also make an eye at a.
![[Diagram]](../../diagrams/42/8716ff407ddbe2d597804cc30fd7c3e4.png) | White first to kill |
If Black solidifies the eye at a first by playing at , that group has only two liberties and it's White's turn, so White wins the semeai (capturing race).
![[Diagram]](../../diagrams/22/497bcda463bbbdd18c877171569d48ae.png) | White first to kill |
If Black tries to capture first with , White attacks the eye at . Black cannot solidify the eye at a because of shortage of liberties, and if Black captures the two white stones, the eye becomes false when White plays at a.
![[Diagram]](../../diagrams/47/53c8ba69d22ef5354c5227ab17a7a352.png) | White's failure |
This does not work. is forced, to prevent Black getting two eyes directly by capturing at ; and solidifies the eye at a. White needs three moves to capture any black stones while Black needs only one to capture the inside white stones (and remove the aji - lingering aftereffects -, so White doesn't even have a ko threat here).
This is a copy of the living page
"Beginner Exercise 53 Solution" at
Sensei's Library.
2003 the Authors, published under the OpenContent License V1.0.
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