Lee Changho's ABC's of Positional Judgment

GO WINDS Volume 4 Number 1 Spring 2000 $3.00 Diagram 10 - It looks as if black is dead in the GO WINDS NIE WEIPING'S corner, but this is not the case. Black can stage INTRODUCTION a deadly attack on white. HI! TO GO 15 5 Welcome to Yutopian Enterprise’s Go Winds, Lesson 13 8 4 designed to add spark to the winds of your Go 7 3 2 1 The Seki-to Tactic 10 6 14 9 13 studies. If you have any suggestions for improvement please let us know. We are Seki-to is a tesuji involving the sacrifice of two Diagram 5 Diagram 6 providing a series of translated articles from the stones on the first and second lines which forces (11@3, 12@7) Chinese and Japanese Go scene and a series of the opponent to form a clumsy shape leading to articles on the application of the principles of his capture. It generally takes place during Diagram 5 - When black ataris at 4, white’s war to Go. Enjoy! capturing races in the corners. connection at 5 is correct. A descent to white 7 in reply to black’s atari at 6 is also a key play. CONTENTS With the sequence through white 15, black is 10 captured. Nie Weiping’s Introduction To Go Lesson 13 1 Diagram 6 - White should reinforce his position in this situation. If a white tenuki, Ma Xiaochun’s Go Lecture 6 ............. 5 9 Lee Changho’s Positional Judgment ABCs - 1 9 5 what severe tactics can black employ against Analyzing Korean Games Part 1 .......... 12 11 white? Yoo Changhyeok on Attack Part 1.1 ....... 15 2 1 13 Go Stories Part 5 ...................... 17 6 3 4 Sangit’s Column Part 5 ................. 18 Diagram 1 Diagram 2 (7@1, 8@3, 12@1) GO WINDS Diagram 1 - Here is a capturing race between 2 9 1 Volume 4, Number 1 the four black stones and the three white stones. 5 Spring 2000 black cuts brilliantly at 1, forcing white to atari 10 11 at 2. A descent to black 3 is the key. With the 2 Published by Yutopian Enterprises 1 6 3 4 sequence from white 4 to black 13, black kills 2255 29th Street, Suite #3 white with the Seki-to tactic. This illustration Diagram 7 Diagram 8 Santa Monica, Ca 90405 shows the basic shape of the Seki-to tactic. (7@•, 8@3) Tel: 800-YUTOGO-3; FAX 310-578- Diagram 2 - After understanding the Seki-to 7381 tactic, one must learn how to apply it flexibly. Diagram 7 - A descent to black 1 is hasty. e-mail: [email protected] How should white play in this situation? When white reinforces at 2, black has no follow- web-site: www.yutopian.com up tactics. Black 1 helps reinforce white. Diagram 8 - A block at black 1 is the most Published Quarterly severe measure. White ataris at 2 and black Price: $3/Issue Subscription: $10/Year descends to 3 forming a Seki-to shape. Black 7, (Yutopian customers with a $50 order or following the atari at white 4 and the capture at more per year receive the magazine free.) 15 6 is another key play. White is forced to 17 12 9 capture at 8. Black connects at 9 and Translations by 13 6 14 4 18 annihilates white. Sidney W. K. Yuan 1 2 10 3 2 1 16 Editing, Layout, and Diagrams by 11 5 7 Craig R. Hutchinson Diagram 3 Diagram 4 (8@)) Diagram Creation Software - Go Write Proof Assistance - Anthony Blagrove Diagram 3 - A lot of beginners would be happy to block at 1, giving black the 9 1 All rights reserved according to opportunity to turn to 2. However, this is not 5 international law. Go Winds or any parts the best choice for white. 12 11 thereof may not be reproduced in any 2 13 10 15 Diagram 4 - The block at white 1 is correct. printed form, nor stored in any electronic 6 3 4 14 However, due to the mistakes in the follow-up retrieval system, nor recorded in any other sequence, white ends up being captured. When Diagram 9 Diagram 10 medium without written permission from black ataris at 4, white plays the wrapping (7@•, 8@3) the publishers, except for short excerpts as tactic at 5 and 7. With the sequence from the a part of a written review. connection at 8 to 18, white’s wrapping tactic Diagram 9 - If white jumps to 10 instead, fails. White is one liberty short in the capturing black connects at 11. When white connects at Printed in America race and ends up being captured. 12, it looks as if white has extended his liberties. However, with the black atari at 15, white is still dead. Vol 4, Num 1 Go Winds Spring 2000 1 2 Go Winds Spring 2000 Vol 4, Num 1 Diagram 16 - In the previous diagram, if white 16 is played here, then again black 17, and 11 9 white dies with the sequence to 21. 1 3 2 3 7 10 2 1 11 9 4 2 1 12 4 10 4 2 1 13 3 7 3 Diagram 11 (4@•) Diagram 12 Diagram 17 Diagram 18 Diagram 23 Diagram 24 (5@•, 6@1, 8@5) (5@), 6@1, 8@5) Diagram 17 - The black • string and the Diagram 11 - If black ataris at 1 directly, white ) string each have four liberties. Black to Diagram 23 - From the previous examples, it white captures at 2. After the exchange of play. How should he reduce white’s liberties? is not difficult to find the correct solution to black’s atari at 3 and white’s connection at 4, a Diagram 18 - Simply jumping down to black this problem. White descends to 1 to form a capturing race results. Black is clearly short of 1 is weak, because it does not reduce white’s Seki-to shape, forcing black to block at 2, before liberties. liberties. White extends to 2 and black hanes at playing atari at 3. White prevails with the Diagram 12 - Black 1 shows an understanding 3. After white descends to 4, black is clearly sequence through 13. of the Seki-to tactic. With the sequence short liberties and will lose the capture race. Diagram 24 - Although the Seki-to tactic through 11, black uses the Seki-to tactic to generally occurs in capturing races, it can also be capture white. Black 1, 3, and 5 are related key used in killing corner groups. How can white kill plays. black? 11 7 3 2 4 1 2 1 3 8 5 6 7 1 3 1 Diagram 19 Diagram 20 8 2 (9@1, 10@5) 2 4 1 2 9 Diagram 13 Diagram 14 Diagram 19 - The hit at black 1 is strong. If Diagram 25 Diagram 26 white hanes at 2, black cuts at 3. When white (5@), 6@1) Diagram 13 - Here is a typical shape in actual ataris at 4, black’s descent to 5 is crucial. Black games. Knowing what to do in these situations kills white using Seki-to tactics through 11. Diagram 25 - A hasty atari at white 1 shows that one has reached a certain level in Diagram 20 - If white turns at 2, in reply to prompted black to capture at 2 and live. strength. How should black play? black’s hit at 1, black simply blocks at 3, Diagram 26 - A descent to white 1 is the key. Diagram 14 - One should not be satisfied with beating white by one liberty in the capturing When black blocks at 2, white ataris at 3. When the exchange of black 1 for white 2. Is there a race. black captures at 4, the throw-in at white 5 is better tactic to gain the upper hand here? certain. Black is forced to make an eye with gote at 8, and white takes away black’s second eye with 9 linking with F, killing black. 10 9 5 EXERCISES 2 19 17 21 17 10 6 9 13 10 6 9 13 8 6 1 3 7 5 2 7 5 2 7 8 4 3 1 8 4 3 1 Diagram 21 Diagram 22 (4@)) 15 16 18 15 18 16 19 Diagram 15 Diagram 16 (11•5, Diagram 21 - Mastering the Seki-to tactic, one (11•5, 12@7, 12@7, 14@11, can often annihilate his opponent in a capturing 14@11) 20@18) race. How can white rescue his four ) stones? Diagram 22 - With a white atari at 1, black Diagram 15 - The crawls at black 1 and 3 simply captures at 2. If then a white atari at 3, Problem 1 Problems 2 forming the Seki-to shape with white’s hane at black connects at 4. White can only block from 4 and black’s cut at 5 is the maneuver. The the outside at 5. Black crawls along to 6, and Problem 1 - White to Play. Mastering the hane at 15 is the final key and the sequence white loses the capturing race by one play after Seki-to tactic, it’s easy to find the solution for through 19 kills white by one liberty. If black 10. this problem. What is the outcome? 15 at 17, then white 16 at 15, and black is short Problem 2 - Black to Play. How can black one liberty and is killed. come out ahead in the capturing race in the Vol 4, Num 1 Go Winds Spring 2000 3 4 Go Winds Spring 2000 Vol 4, Num 1 corner? white’s atari at 4, black descends to 5.

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