Chess Life 2016 07

July 30, 2017 | Author: stjernenoslo | Category: Game Theory, Chess Theory, Traditional Games, Abstract Strategy Games, Traditional Board Games
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Kasparov: Former world champion is a presence at the U.S. Championship, and his namesake Kasparov Chess Foundation All-Girls event is again a success.

GM Fabiano Caruana takes

U.S. Championship in his first appearance; IM Nazi Paikidze is the U.S. Women’s Champion. July 2016

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CHESS LIFE USPS # 102-840 (ISSN 0197-260X). Volume 71 No. 7. PRINTED IN THE USA. Chess Life, formerly Chess Life & Review, is published monthly by the United States Chess Federation, 137 Obrien Dr., Crossville, TN 38557-3967. Chess Life & Review and Chess Life remain the property of USCF. Annual subscription (without membership): $50. Periodical postage paid at Crossville, TN 38557-3967 and additional mailing offices. POSTMASTER: Send address changes to Chess Life (USCF), PO Box 3967, Crossville, Tennessee 38557-3967. Entire contents ©2016 by the United States Chess Federation. All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means electronic, mechanical, photocopying, or otherwise without the prior written permission of USCF. Note: Unsolicited materials are submitted at the sender's risk and Chess Life accepts no responsibility for them. Materials will not be returned unless accompanied by appropriate postage and packaging. Address all submissions to Chess Life, PO Box 3967, Crossville, TN 38557-3967. The opinions expressed are strictly those of the contributors and do not necessarily reflect the views of the United States Chess Federation. Send all address changes to: U.S. Chess, Membership Services, PO Box 3967, Crossville, Tennessee 38557-3967. Include your USCF I.D. number and a recent mailing label if possible. This information may be e-mailed to [email protected] Please give us eight weeks advance notice. PUBLICATIONS MAIL AGREEMENT NO. 41473530 RETURN UNDELIVERABLE CANADIAN ADDRESSES TO EXPRESS MESSENGER INTERNATIONAL P.O. BOX 25058 LONDON BRC, ONTARIO, CANADA N6C 6A8

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71

    DR. ALLEN VAN GELDER Professor, Computer Science U. of California Santa Cruz US Chess Life Member

ADJUDICATED GM Walter Browne Dr. Allen Van Gelder



If you can find a win, I’ll change it. I tried for half an hour and could not find anything.

I hit upon an idea for holding the draw. I started working out variations; I knew I would have a hard sell when the adjudicator came around. Amazingly, Black always seemed to have an answer for White’s various winning tries. After about an hour, GM Arthur Bisguier, the adjudicator, came to the table, looked briefly at the position (with the bishop on c3), and said, “White wins.” I asked, “May I show you one move?” He said, “Sure.” I showed him  : 1. ... Nb4

WHITE TO PLAY

The tournament rule was that games that reached the time control would be adjudicated so the evening round would be sure to start on time. Walter played the obvious ... 1. Bc3

.... and went to dinner, confident that the game would be adjudicated as a win for White. The situation certainly appeared bleak for Black. After the b-pawn falls, which seems inevitable, White is two pawns ahead. I did not give up all hope because White has a bad bishop. If the knight can somehow get behind the lines it might have enough threats to keep White at bay. Eventually

72

July 2016 | Chess Life

GM Bisguier sat down in Browne’s chair. The next half hour or so was spent on adjournment-style analysis, moving the pieces around to explore various lines. The most important line is ... 2. Kd2 Nc2!

White cannot go after the b-pawn without letting the knight reach g2, or something equally strong, e.g., 3. Kd3 Kc6 4. Bd2? Nxd4!. Or 3. d5 Na3 4. Kd3 Nc2 5. Bb2 Ne1+ 6. Ke2 Ng2 7. Kf3 Ne1+!, and White cannot force progress. Perhaps the most critical line is: 3. Bb2 Kc6 4. Kc3 Ne1 5. Kxb3?!

If 5. Kd2, Black must avoid the tempting knight fork on f3, as the knight becomes



trapped. Either 5. ... Ng2 or 5. ... Nf3 draws. 5. ... Ng2 6. Bc1 Nxh4

Notice that the bad bishop comes home to roost: If both f-pawns were off the board,White could save two tempos compared to Be3-f2g3 to guard h2 and would be winning. Instead, 7. Kc3 Nf3 8. Kd3 h4 9. Ke3 Nxd4!

... and Black is healthy, if not better. These lines and many others were explored, and the game was adjudicated as a  . When Browne returned from dinner and found the game was called a draw, he was livid. GM Bisguier calmly replied, “If you can find a win, I’ll change it. I tried for half an hour and could not find anything.” So the next half hour was essentially a replay of the previous half hour, except with Browne in his own chair. Browne and I were surprised to run into each other a few years later in the San Francisco area. Not one to hold a grudge, we became casual friends, with our mutual interests in chess and backgammon. Later I read in Chess Life (March 1989, p. 24) how he beat Deep Thought (predecessor of Deep Blue) with a positional Exchange sacrifice. With his fighting spirit, I believe that he could have mopped the floor with Deep Blue, had he ever gotten the chance.

PHOTO: PROF. DARRELL D. E. LONG

T

his game occurred in an afternoon round of a weekend Swiss in the mid 1960s. White was GM Walter Browne, who was a rising star in the New York area at that time. Walter was justifiably confident that he was the better player, so he essayed a closed Sicilian to get us both on our own. He erred by allowing the kingside to be closed, ending his promising attack there, but then I returned the favor and blundered a pawn, leading to the diagrammed position at the time control.

46th 46th annual annual

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