Go Reviews


Keshi and Uchikomi: Reduction and Invasion in Go
By Iwamoto Kaoru 9P
Published by Slate & Shell
212 pp.
Review by Lawrence Ku, 2d

        If you want to do when your opponent has a small moyo, Reduction and Invasion in Go can answer many of your questions.
        Reduction explores twenty popular reduction scenarios and eighteen common invasions. Both the invasions and the reductions are patterns with large knight enclosures, small knight enclosures, and one-space enclosures, and invasions also have extensions on the side. There are four or five scenarios for each type of corner enclosure, differing by as little as one line. Every case is approximately 2-4 pages long and is illustrated with many diagrams showing different variations. In each scenario, it teaches you how to play along with the reasoning behind the sequence of moves. It shows you how even one line can make a big difference in the type of reduction or invasion technique used.
        Kyu player should be able to understand the difference between the different types of corner enclosures, even if you don't catch the subtle differences of one line. Dan players will find it easier to recognize the subtle difference in the scenarios. It will be easier to understand and learn the reasoning behind the moves.
        I like this book because after reading it for the first time, I was no longer afraid to invade and reduce moyos. Reading it the second time, I was able to understand the concepts, as well as how to approach the patterns systematically.

http://www.slateandshell.com/


Back to Reviews