Sunday Problem #26
Published 29 Nov 2020 by antti
(last edited 6 Dec 2020)
With this post, we have reached half a year’s worth of Sunday problems! In case you haven’t noticed, this page (the link is under the ‘material’ tab and also on the right-side bar) lists all the Sunday problems in easily accessible form.
This problem is from the Japanese book 達人の詰碁 (Tatsujin no tsumego), or Expert’s Tsumego. According to the book, a Japanese 2d (so perhaps a European 2k) should be able to solve this problem in 10 minutes.
Black to play.
Solution
The tricky part about this problem is the sacrifice technique of 5, which can become a blind spot. For example black 4 instead of 5 will only manage to start a kō for White’s life.
Comments (1)
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Solution added.