While on the topic of endgame problems, it would be remiss of me not to bring up Kanō Yoshinori 9p’s excellent ヨセ辞典 (Yose-Jiten), or Endgame Dictionary.
When I was insei, this book single-handedly had the biggest influence on my endgame improvement. The book explains how to count values of moves (by swing counting), showcases many kinds of endgame tesuji, and also includes a good number of whole-board problems. Unfortunately, the book is quite wordy and has no English translation, so it is the most useful for players who can read Japanese.
This is one of the whole-board problems in the Endgame Dictionary, very slightly edited by me (I have removed a black stone at h1, increasing Black’s territory by one point and making the players’ stone counts equal).
No komi or captures, Black to play. What is the best outcome for both players?
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