Cho Hun-hyeon's Lectures on Go Techniques

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Cho Hun-hyeon's Lectures on Go Techniques
("曹薰铉对局技巧(全三册)Volume 1")
http://www.yutopian.com/yut/images/prod/PAY20.jpg
By: Cho Hun-hyeon
Publisher: Yutopian, May 1998
ISBN10 1-889554-42-1
222 pp.

Lectures on Go Techniques by Cho Hun-hyeon, edited by Craig R. Hutchinson, and published by Yutopian (ISBN: 1-889554-42-1) consists of two sections: an exposition on shape followed by 45 early opening problems that focus on positions which arise frequently in games. If one knows a few basic techniques (say 5 kyu AGA), the problems are fairly easy. This book is a translation of the first volume of 曹薰铉对局技巧(全三册)(Cho Hun-Hyeon's Even Game Techniques (Vol 1-3) ISBN 7-80092-539-0). The other two volumes consist of 54 and 51 problems.

The true value of this book lies the numerous solution diagrams. For each problem, half a dozen seemingly reasonable but incorrect alternatives are explored and the reason why each is wrong explained in the text accompanying the diagram. Once the wrong responses have been deal with the correct response is shown and explained. Afterward, there is an additional diagram showing the continuation from the correct answer. As such the book is much closer being serveral professional lessons on the early opening than it is to being a problem book. A player that can identify the possible answers, select the correct one, and know why the other are wrong, would be a mid to high level AGA dan player (3-5 dan AGA).

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Table of Contents

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Sample Material

[Diagram]

Problem 33 - Black to Play

White blocks at W1 attacking the two black stones. Once again, the question is, how will rescuing or sacrificing the two stones benefit the situation? The key is, how to flexibly atari?

[Diagram]

Diagram 1 - Ladders and Connecting Stones

Black ataris at B1 to extend his liberties, before cutting at B3. After the sequence to White 6, the ladder at a does not favor Black. Black fails.

[Diagram]

Diagram 2 - Not Too Good

Black ataris at B1 separating White and completely controls the corner after the sequence through B5. However, Black does not like how the two black stones are captured. Black can do better though...

[Diagram]

Diagram 3 - Correct Sequence

Black should first atari at B1, forcing White to connect at W2, before the atari at B3. White the sequence through B7, Black cuts White apart and ends with a better shape.

[Diagram]

Diagram 4 - The Difference

This shows the final position in Diagram 2. Black ataris at black+circle without exchanging Black a for White b. As a result, White has no need to connect at b. Thus, play order is very important in Go.

[Diagram]

Diagram 5 - Black Gains Nothing

When White captures at white+circle, Black greedily jump to B1 instead of protecting the corner. Using Black's weakness, White secures the corner and Black gets nothing.

[Diagram]

Diagram 5 - The Sequence that Follows

Continuing from the previous diagram, Black hanes at B1. However, White's atari at W2 make life in the corner with the sequence through W8. Although Black captures one stone, he is not satisfied.


This is a copy of the living page "Cho Hun-hyeon's Lectures on Go Techniques" at Sensei's Library.
(OC) 2009 the Authors, published under the OpenContent License V1.0.
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