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.
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