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Counting Liberties & Winning Capturing Races

By Richard Hunter

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Title Counting Liberties & Winning Capturing Races
Author Richard Hunter
Publisher Slate & Shell
Code ssrh003
Date 2003
ISBN 1-932001-04-2
Pages 233
Dimensions 8 1/2. x 5 1/2. - 217mm x 140mm
Sample pages ssrh003.pdf
Publisher's URL http://www.slateandshell.com/ssrh003.html

Blurb show/hide

Every game involves counting liberties in capturing races, from huge game deciding battles to small scale questions of whether a cut works or a defensive move is necessary. How many times have you been surprised to end up one liberty short? Did you miscount or somehow misplay the fight? Shouldn't you have won instead? Every go player has had this experience. Losing a capturing race can be disheartening, but winning one can be exhilarating.

Counting liberties and winning capturing races are part of the fundamental knowledge that you need to understand thoroughly. This book provides a systematic coverage of how to count liberties in the different types of fight. The first chapter guides you through numerous simple examples and presents general principles that you can apply in your games. The level is suitable for beginners, who should have no trouble following this clear and methodical explanation, but even dan players will find something new and important here. The following chapters present applications of these principles to more complicated capturing races, several games with detailed comments, and numerous problems for practice. Study this book carefully and you will find yourself winning more capturing races and savoring the joy of killing your opponent's stones rather than dying.

Contents show/hide

Preface ...iii
Part One: Basic Principles
Chapter 1: Counting Liberties ...1
  Summary of Types of Fights ...45
Chapter 2: It's All Relative ...47
Chapter 3: Simple Counting Practice ...55
Chapter 4: Capturing Races Involving Ko ...63
  Summary of Capturing Races with Ko ...105
Part Two: Applications
Chapter Five: Fighting Tactics ...107
  The Throw-in ...107
  Making an Eye ...112
  The Bigger the Better ...119
  Avoiding and Contriving Ko ...128
  Bamboo Joints (by Simon Goss) ...134
  The Art of Strategic Sacrifice ...143
Chapter 6: Problems ...147
Chapter 7: Commented Games ...158
Chapter 8: Additional Problems ...189
Chapter 9: The L Group ...203
About the Author ...233

Reviews show/hide

Review by Dennis Hardman (AGA) show/hide 3/11/2003

Review Author Dennis Hardman (AGA) Reviewer Strength n/a

This book deals with the rather narrow (but valuable) techniques of winning localized life- and-death fights occurring between groups of stones where it is a race to see which group lives and which group dies. The book describes the basics of what actually counts as a liberty, categories of liberties (e.g., inside vs. outside), how these liberties figure in the fight, and the types of fights that can occur (Type 1, Type 2 with a Ko on the outside liberties, etc.). It provides the reader with "formulas" for evaluating a fight without having to explicitly read out every line of play. The trick is to correctly count the number and type of liberties to determine the type of fight so that one can ultimately apply the "formula". Later chapters show how the techniques are used in realistic fighting situations, and provide about 50 problems and several commented professional games to drive the concepts home. Well written and nicely laid out, I would recommend this book to players of all strengths, particularly those with a mid-kyu ranking. However, this book should be valuable to even the strongest player because, as the preface points out, "Many players, even quite strong ones, have a poor grasp of these fundamentals."

Review by David Carlton show/hide

Review Author David Carlton Reviewer Strength 1 kyu
Author's Email carlton@bactrian.org website http://www.bactrian.org/~carlton/

This book is all about capturing races: life and death problems where both sides are vulnerable, and whoever captures first wins (unless, of course, it's a seki). In the most basic such situations, of course, you can just count the number of liberties each side has, and the side with the most liberties wins. The book starts with that, but then moves on to situations where there are internal liberties, where one or both sides has an eye, or where the eye(s) are large (4 or more spaces). The rest of the first part of the book continues in this vein, also giving some pratice problems and some dicussion of ko. The second part of the book talks about some tesujis that come up in capturing races, gives more problems, gives some commented games with particularly interesting capturing races, and a special section on the L group.

The book is exactly what you might expect, for better or for worse. The first chapter tells how to mechanically tell who wins in various situations; on the one hand, it's good to know the basic principles, but on the other hand I don't think it's very important to know mathematical rules for telling who will win: these positions are easy enough to read out, once you know the basic principles. (But knowing the principles behind the different situations is important: I missed got one of the early problems involving dueling large eyes, because I'd skimmed over that section of the book.) In general, I felt that the book was a bit too complete for my taste: if you want to improve your life-and-death skills as much as possible by reading a 230-page book, you'd be much better served by a general-purpose life-and-death book (or a collection of life-and-death problems), and the sections in the second half of the book were a bit hit-or-miss.

Having said that, I'm glad that somebody has taken the time to work out mathematical rules for these things; if that excites you, then this is the book you're looking for. Some of the contents of the book have appeared in the Kiseido edition of The Second Book of Go and in the British Go Journal, but the version here has been greatly expanded.



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