Strategic Concepts of Go
Strategic Concepts of Go, by Nagahara Yoshiaki, published by Ishi Press in 1972 was a ground-breaking introduction to some higher-level thinking in go, and its terminology. The book begins with an exposition of eight named strategic concepts (miai, aji, kikashi, thickness, korigatachi, sabaki, furikawari, and yosu-miru). This exposition of eight chapters and sixty pages comprises a crash course in how stronger players think about the game.
The exposition is followed by a stimulating set of 72 problems, presumably from author Nagahara Yoshiaki's own teaching; most of these are dan-level problems.
Grauniad: This book seems to be out of print and difficult to obtain now.
Harpreet: I have somehow ended up with two copies, one hardback and one paperback. The cover of the hardback is somewhat damaged by exposure to either damp or water. It's warped in shape but is otherwise fine. I'll sell it or trade it for another collectible book if someone is interested. I don't know if this is the right place to be trading books....
Plop?: I was able to buy it recently from the Ibuki Trading Post at http://www.ibuki-trading-post.com/cgi-oak-creek/igo_books.cgi?01041-91773
ㅁ Naustin: I got this book through inter library loan. The chapters are interesting but very short and pretty jargony. This book is helpful in that it puts forward and gives you basic familiarity with some important concepts and interrelates the concepts.
Arno: at my level (1d) I find the book very inspiring. The problems are one of the best (i.e. most interesting) I have looked at in a long time. This book is
definitely one of my favourites.
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Updated version: The Basics of Go Strategy