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Joseki-related life-and-death example 3
Path: JosekiRelatedLifeAndDeath · Prev: JosekiRelatedLifeAndDeathExample2 · Next: JosekiRelatedLifeAndDeathExample4
Difficulty: Intermediate Keywords: Life & Death
The following situation can arise from a 3-3 invasion.
White has lived in the corner.
Klaus: I think I read that the following continuation is supposed to be some kind of usual exchange later. (Might be wrong though.)
In the game in question, White decided to play tenuki after
Charles A well-known position: can become ko. Lucas: Yes. If it is Black's turn it is ko (as shown below) and dead if Black has a stone at the circle point. Covered in a later chapter of Life And Death by JamesDavies.
Klaus: Could you please show us the ko sequence? I can't find it myself, and I don't know where to look it up. (And I guess, others might have the same problem...) Charles You could try Go Tools. But why not try to solve the problem? Bob has provided an answer below. At learning from Takemiya the following reduction was mentioned. White is left with barely two eyes, but can Black do better?
At Positional Judgement Problem 2 / Discussion it was suggested, that Black cam kill by playing hane underneath. But is that right? On that page, a move at a is suggested, but White seems to die after b. Lucas: The position on that page is slightly different and Black can unconditionally kill there (colors are reversed there) but not here (as shown below).
White
Playing
SnotNose: How does White respond to Klaus: The "Double Hane" seems to kill, cool idea!
However, I'm still not completely convinced. I want to present an idea I found at oki wants tobi?:
White seems to be alive here, but of course, Black kan play
BobMcGuigan: Here are some important sequences in this position:
Path: JosekiRelatedLifeAndDeath · Prev: JosekiRelatedLifeAndDeathExample2 · Next: JosekiRelatedLifeAndDeathExample4 This is a copy of the living page "Joseki-related life-and-death example 3" at Sensei's Library. ![]() |