碁経衆妙
A reference standard of tsumego, written by Hayashi Genbi and published in 1812.
It is known in China as Qi Jing Zhong Miao and << Ki Kyung Joong Myo >> in Korea, meaning "Brilliancies from Go Classics".
In Killer of Go, Sakata Eio emphasizes the importance of studying tsumego. His statement goes like this: It is necessary to cultivate one's skill at solving questions at a glance, in other words, life and death problems (tsumego). It is recommended that amateurs assimilate the "Gokyo Shumyo" (...). It was published more than 150 years ago, but it contains basic life and death shapes, and is invaluable in game situations. Unless one first fixes the complete Shumyo collection in mind, one will not attain the qualifications to make one feared as a "killer". However, even a fairly strong amateur will have trouble solving all of the problems in the Shumyo correctly on the spot. If not, that's quite all right. After some days pass, one must take up the challenge again, and then yet again later, until in the end one masters the whole anthology.
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