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16Th Dubai Open Chess Championship Bulletin 9 16 April 2014 Sheikh Rashid Bin Hamdan Al Maktoum Cup
16th Dubai Open Chess Championship Bulletin 9 16 April 2014 Sheikh Rashid Bin Hamdan Al Maktoum Cup French GM Romain Edouard (second from left) receives the cup and winner’s prize from General Secretary Ibrahim Abdulmalik of the General Authority of Youth and Sports. Looking on are, from left, Dr. Ahmed Al Sharif, General Secretary of the Dubai Sports Council, Dubai Chess Club president Ibrahim Al Bannai and General Coordinator Mohammed Husseini. French GM Romain Edouard, 23, forced to exchange Queens on the 22nd Kazakhstan, Petrosian outplayed IM defeated top seed GM Anton Korobov of move and lost two pawns which proved Ebrahim Ahmadinia of Iran, Stevic and Ukraine yesterday to win the 16th Dubai crucial in the endgame where he resigned Jones drew with each other while Open Chess Championship alone in first on the 51st move. The win gave Istratescu won over Pontus Carlsson of place, undefeated with an impressive 8 Iturrizaga a total of 7 points and a share Sweden. points out of 9 rounds. Edouard won the of 2nd and 3rd places. Nineteen other players trail with 6 points Sheikh Rashid bin Hamdan Al Maktoum GM Yuriy Kozubov of Ukraine extracted each to share in the spoils, namely Cup and the top cash prize of $10,000 in revenge against Russian GM Aleksandr Korobov Anton of Ukraine, Rakhmanov the event organized by the Dubai Chess Rakhmanov to finish in a tie Iturrizaga at Aleksandr or Russia, Akopian Vladimir Club in Dubai, UAE. 7 points each. Kuzubov crushed the of Armenia, Kotsur Pavel and Petr The Frenchman played the Black side of Modern Defense of Rakhmanov in 58 Kostenko of Kazakhstan, Balogh Csaba a Queen’s Pawn game and sacrificed the moves. -
White Knight Review Chess E-Magazine January/February - 2012 Table of Contents
Chess E-Magazine Interactive E-Magazine Volume 3 • Issue 1 January/February 2012 Chess Gambits Chess Gambits The Immortal Game Canada and Chess Anderssen- Vs. -Kieseritzky Bill Wall’s Top 10 Chess software programs C Seraphim Press White Knight Review Chess E-Magazine January/February - 2012 Table of Contents Editorial~ “My Move” 4 contents Feature~ Chess and Canada 5 Article~ Bill Wall’s Top 10 Software Programs 9 INTERACTIVE CONTENT ________________ Feature~ The Incomparable Kasparov 10 • Click on title in Table of Contents Article~ Chess Variants 17 to move directly to Unorthodox Chess Variations page. • Click on “White Feature~ Proof Games 21 Knight Review” on the top of each page to return to ARTICLE~ The Immortal Game 22 Table of Contents. Anderssen Vrs. Kieseritzky • Click on red type to continue to next page ARTICLE~ News Around the World 24 • Click on ads to go to their websites BOOK REVIEW~ Kasparov on Kasparov Pt. 1 25 • Click on email to Pt.One, 1973-1985 open up email program Feature~ Chess Gambits 26 • Click up URLs to go to websites. ANNOTATED GAME~ Bareev Vs. Kasparov 30 COMMENTARY~ “Ask Bill” 31 White Knight Review January/February 2012 White Knight Review January/February 2012 Feature My Move Editorial - Jerry Wall [email protected] Well it has been over a year now since we started this publication. It is not easy putting together a 32 page magazine on chess White Knight every couple of months but it certainly has been rewarding (maybe not so Review much financially but then that really never was Chess E-Magazine the goal). -
Top 10 Checkmate Pa Erns
GM Miguel Illescas and the Internet Chess Club present: Top 10 Checkmate Pa=erns GM Miguel Illescas doesn't need a presentation, but we're talking about one of the most influential chess players in the last decades, especially in Spain, just to put things in the right perspective. Miguel, so far, has won the Spanish national championship of 1995, 1998, 1999, 2001, 2004, 2005, 2007, and 2010. In team competitions, he has represented his country at many Olympiads, from 1986 onwards, and won an individual bronze medal at Turin in 2006. Miguel won international tournaments too, such as Las Palmas 1987 and 1988, Oviedo 1991, Pamplona 1991/92, 2nd at Leon 1992 (after Boris Gulko), 3rd at Chalkidiki 1992 (after Vladimir Kramnik and Joel Lautier), Lisbon Zonal 1993, and 2nd at Wijk aan Zee 1993 (after Anatoly Karpov). He kept winning during the latter part of the nineties, including Linares (MEX) 1994, Linares (ESP) Zonal 1995, Madrid 1996, and Pamplona 1997/98. Some Palmares! The ultimate goal of a chess player is to checkmate the opponent. We know that – especially at the higher level – it's rare to see someone get checkmated over the board, but when it happens, there is a sense of fulfillment that only a checkmate can give. To learn how to checkmate an opponent is not an easy task, though. Checkmating is probably the only phase of the game that can be associated with mathematics. Maths and checkmating have one crucial thing in common: patterns! GM Miguel is not going to show us a long list of checkmate examples: the series intends to teach patterns. -
Chess Tests: Basic Suite, Positions 16-20
Chess Tests: Basic Suite, Positions 16-20 (c) Valentin Albillo, 2020 Last update: 14/01/98 See the Notes on Problem Solving 16.- Z. Franco vs. J. Gil FEN: rbb1N1k1/pp1n1ppp/8/2Pp4/3P4/4P3/P1Q2PPq/R1BR1K2/ b Black to play and win: 1. ... Nd7xc5 2. Qc5 Qh1+ 3. Ke2 Bg4+ 4. f3 Results Program CPU/Mhz Hash table Move Value Plys/Max Time Notes Chess Genius 1.0 P100 320 Kb Nd7xc5 +0.39 5/17 00:00:17 sees little value Chess Genius 1.0 P100 320 Kb Nd7xc5 +1.72 7/19 00:04:49 sees to 4. f3 Pentium Pro 200 MHz 24 Mb + 16 Mb Nd7xc5 +2.14 10/19 00:01:20 seen at 14s Crafty 12.6 P6 ? Nd7xc5 +1.181 11/17 00:01:46 see notes Crafty 13.3 Pentium Pro 200 Mhz ? Nd7xc5 +2.46 9 00:03:05 Chess Master 5500 Pentium Pro 200 Mhz 10 Mb Nd7xc5 +2.65 6 00:01:24 seen at 0:00, +0.00 MChess Pro 5.0 Notes: Using Chess Genius 1.0, both searches find the correct Knight's sacrifice. The 5-ply one, however, does not see it's full value, while the 7-ply search, though 16 times slower, correctly predicts the next 6 plies of the actual game, finding the move nearly two pawns worth. Crafty 12.6 finds the correct sacrifice too, though it needs to search to 10 ply, instead of the 7 plies required by CG1.0, but its better hardware makes for the shortest time. -
Draft – Not for Circulation
A Gross Miscarriage of Justice in Computer Chess by Dr. Søren Riis Introduction In June 2011 it was widely reported in the global media that the International Computer Games Association (ICGA) had found chess programmer International Master Vasik Rajlich in breach of the ICGA‟s annual World Computer Chess Championship (WCCC) tournament rule related to program originality. In the ICGA‟s accompanying report it was asserted that Rajlich‟s chess program Rybka contained “plagiarized” code from Fruit, a program authored by Fabien Letouzey of France. Some of the headlines reporting the charges and ruling in the media were “Computer Chess Champion Caught Injecting Performance-Enhancing Code”, “Computer Chess Reels from Biggest Sporting Scandal Since Ben Johnson” and “Czech Mate, Mr. Cheat”, accompanied by a photo of Rajlich and his wife at their wedding. In response, Rajlich claimed complete innocence and made it clear that he found the ICGA‟s investigatory process and conclusions to be biased and unprofessional, and the charges baseless and unworthy. He refused to be drawn into a protracted dispute with his accusers or mount a comprehensive defense. This article re-examines the case. With the support of an extensive technical report by Ed Schröder, author of chess program Rebel (World Computer Chess champion in 1991 and 1992) as well as support in the form of unpublished notes from chess programmer Sven Schüle, I argue that the ICGA‟s findings were misleading and its ruling lacked any sense of proportion. The purpose of this paper is to defend the reputation of Vasik Rajlich, whose innovative and influential program Rybka was in the vanguard of a mid-decade paradigm change within the computer chess community. -
Proposal to Encode Heterodox Chess Symbols in the UCS Source: Garth Wallace Status: Individual Contribution Date: 2016-10-25
Title: Proposal to Encode Heterodox Chess Symbols in the UCS Source: Garth Wallace Status: Individual Contribution Date: 2016-10-25 Introduction The UCS contains symbols for the game of chess in the Miscellaneous Symbols block. These are used in figurine notation, a common variation on algebraic notation in which pieces are represented in running text using the same symbols as are found in diagrams. While the symbols already encoded in Unicode are sufficient for use in the orthodox game, they are insufficient for many chess problems and variant games, which make use of extended sets. 1. Fairy chess problems The presentation of chess positions as puzzles to be solved predates the existence of the modern game, dating back to the mansūbāt composed for shatranj, the Muslim predecessor of chess. In modern chess problems, a position is provided along with a stipulation such as “white to move and mate in two”, and the solver is tasked with finding a move (called a “key”) that satisfies the stipulation regardless of a hypothetical opposing player’s moves in response. These solutions are given in the same notation as lines of play in over-the-board games: typically algebraic notation, using abbreviations for the names of pieces, or figurine algebraic notation. Problem composers have not limited themselves to the materials of the conventional game, but have experimented with different board sizes and geometries, altered rules, goals other than checkmate, and different pieces. Problems that diverge from the standard game comprise a genre called “fairy chess”. Thomas Rayner Dawson, known as the “father of fairy chess”, pop- ularized the genre in the early 20th century. -
The SSDF Chess Engine Rating List, 2019-02
The SSDF Chess Engine Rating List, 2019-02 Article Accepted Version The SSDF report Sandin, L. and Haworth, G. (2019) The SSDF Chess Engine Rating List, 2019-02. ICGA Journal, 41 (2). 113. ISSN 1389- 6911 doi: https://doi.org/10.3233/ICG-190107 Available at http://centaur.reading.ac.uk/82675/ It is advisable to refer to the publisher’s version if you intend to cite from the work. See Guidance on citing . Published version at: https://doi.org/10.3233/ICG-190085 To link to this article DOI: http://dx.doi.org/10.3233/ICG-190107 Publisher: The International Computer Games Association All outputs in CentAUR are protected by Intellectual Property Rights law, including copyright law. Copyright and IPR is retained by the creators or other copyright holders. Terms and conditions for use of this material are defined in the End User Agreement . www.reading.ac.uk/centaur CentAUR Central Archive at the University of Reading Reading’s research outputs online THE SSDF RATING LIST 2019-02-28 148673 games played by 377 computers Rating + - Games Won Oppo ------ --- --- ----- --- ---- 1 Stockfish 9 x64 1800X 3.6 GHz 3494 32 -30 642 74% 3308 2 Komodo 12.3 x64 1800X 3.6 GHz 3456 30 -28 640 68% 3321 3 Stockfish 9 x64 Q6600 2.4 GHz 3446 50 -48 200 57% 3396 4 Stockfish 8 x64 1800X 3.6 GHz 3432 26 -24 1059 77% 3217 5 Stockfish 8 x64 Q6600 2.4 GHz 3418 38 -35 440 72% 3251 6 Komodo 11.01 x64 1800X 3.6 GHz 3397 23 -22 1134 72% 3229 7 Deep Shredder 13 x64 1800X 3.6 GHz 3360 25 -24 830 66% 3246 8 Booot 6.3.1 x64 1800X 3.6 GHz 3352 29 -29 560 54% 3319 9 Komodo 9.1 -
— I Believe Hostage the Most Interesting, Exciting Variant That Can Be Played with a Standard Chess Set. Mating Attacks Are the Norm
— I believe Hostage the most interesting, exciting variant that can be played with a standard chess set. Mating attacks are the norm. Anyone can hope to discover new principles and opening lines. Grandmaster Larry Kaufman 2008 World Senior Chess Champion — Fascinating, exciting, extremely entertaining—–what a wonder- ful new game! Grandmaster Kevin Spraggett Chess World Championship Candidate — Probably the most remarkable chess variant of the last fi ft y years. Captured men are hostages that can be exchanged. Play is rarely less than exciting, sometimes with several reversals of fortune. Dramatic mates are the rule, not the exception. D.B.Pritchard author of “Th e Encyclopedia of Chess Variants” — Chess is not yet played out, but it is no longer possible to perform at a high level without a detailed knowledge of openings. In Hostage Chess creativity and imagination fl ourish, and fun returns. Peter Coast Scottish Chess Champion — With only a few rule changes, Hostage Chess creates a marvelously exciting variant on the classical game. Lawrence Day International Chess Master — Every bit as intriguing as standard chess. Beautiful roads keep branching off in all directions, and sharp eyed beginners sometimes roll right over the experts. Robert Hamilton FIDE Chess Master Published 2012 by Aristophanes Press Hostage Chess Copyright © 2012 John Leslie. All rights reserved. No part of this publication may be reproduced, stored in a re- trieval system, or transmitted in any form or by any means, digital, electronic, mechanical, photocopying, recording, or otherwise, or conveyed via the Internet or a website without prior written per- mission of the author, except in the case of brief quotations em- bedded in critical articles and reviews. -
YEARBOOK the Information in This Yearbook Is Substantially Correct and Current As of December 31, 2020
OUR HERITAGE 2020 US CHESS YEARBOOK The information in this yearbook is substantially correct and current as of December 31, 2020. For further information check the US Chess website www.uschess.org. To notify US Chess of corrections or updates, please e-mail [email protected]. U.S. CHAMPIONS 2002 Larry Christiansen • 2003 Alexander Shabalov • 2005 Hakaru WESTERN OPEN BECAME THE U.S. OPEN Nakamura • 2006 Alexander Onischuk • 2007 Alexander Shabalov • 1845-57 Charles Stanley • 1857-71 Paul Morphy • 1871-90 George H. 1939 Reuben Fine • 1940 Reuben Fine • 1941 Reuben Fine • 1942 2008 Yury Shulman • 2009 Hikaru Nakamura • 2010 Gata Kamsky • Mackenzie • 1890-91 Jackson Showalter • 1891-94 Samuel Lipchutz • Herman Steiner, Dan Yanofsky • 1943 I.A. Horowitz • 1944 Samuel 2011 Gata Kamsky • 2012 Hikaru Nakamura • 2013 Gata Kamsky • 2014 1894 Jackson Showalter • 1894-95 Albert Hodges • 1895-97 Jackson Reshevsky • 1945 Anthony Santasiere • 1946 Herman Steiner • 1947 Gata Kamsky • 2015 Hikaru Nakamura • 2016 Fabiano Caruana • 2017 Showalter • 1897-06 Harry Nelson Pillsbury • 1906-09 Jackson Isaac Kashdan • 1948 Weaver W. Adams • 1949 Albert Sandrin Jr. • 1950 Wesley So • 2018 Samuel Shankland • 2019 Hikaru Nakamura Showalter • 1909-36 Frank J. Marshall • 1936 Samuel Reshevsky • Arthur Bisguier • 1951 Larry Evans • 1952 Larry Evans • 1953 Donald 1938 Samuel Reshevsky • 1940 Samuel Reshevsky • 1942 Samuel 2020 Wesley So Byrne • 1954 Larry Evans, Arturo Pomar • 1955 Nicolas Rossolimo • Reshevsky • 1944 Arnold Denker • 1946 Samuel Reshevsky • 1948 ONLINE: COVID-19 • OCTOBER 2020 1956 Arthur Bisguier, James Sherwin • 1957 • Robert Fischer, Arthur Herman Steiner • 1951 Larry Evans • 1952 Larry Evans • 1954 Arthur Bisguier • 1958 E. -
Ultimate Tarrasch Sample
The Ultimate Tarrasch Defense by Eric Schiller Published by Sid Pickard & Son, Dallas All text copyright 2001 by Eric Schiller. Portions of the text materials and chess analysis are taken from Complete Defense to Queen Pawn Openings by Eric Schiller, Published by Cardoza Publishing. Additional material is adapted from Play the Tarrasch by Leonid Shamkovich and Eric Schiller, published by Pergamon Press in 1984. Some game annotations have previously appeared in various books and publications by Eric Schiller. This document is distributed as part of The Ultimate Tarrasch CD-Rom, published by Pickard & Son, Publishers (www.ChessCentral.com). Additional analysis on the Tarrasch Defense can be found at http://www.chesscity.com/. Introduction .................................................................................................................................................................................2 What is the Tarrasch Defense ..................................................................................................................................................2 Who plays the Tarrasch Defense .............................................................................................................................................3 How to study the Tarrasch Defense.........................................................................................................................................3 Dr. Tarrasch and his Defence ......................................................................................................................................................4 -
Extended Null-Move Reductions
Extended Null-Move Reductions Omid David-Tabibi1 and Nathan S. Netanyahu1,2 1 Department of Computer Science, Bar-Ilan University, Ramat-Gan 52900, Israel [email protected], [email protected] 2 Center for Automation Research, University of Maryland, College Park, MD 20742, USA [email protected] Abstract. In this paper we review the conventional versions of null- move pruning, and present our enhancements which allow for a deeper search with greater accuracy. While the conventional versions of null- move pruning use reduction values of R ≤ 3, we use an aggressive re- duction value of R = 4 within a verified adaptive configuration which maximizes the benefit from the more aggressive pruning, while limiting its tactical liabilities. Our experimental results using our grandmaster- level chess program, Falcon, show that our null-move reductions (NMR) outperform the conventional methods, with the tactical benefits of the deeper search dominating the deficiencies. Moreover, unlike standard null-move pruning, which fails badly in zugzwang positions, NMR is impervious to zugzwangs. Finally, the implementation of NMR in any program already using null-move pruning requires a modification of only a few lines of code. 1 Introduction Chess programs trying to search the same way humans think by generating “plausible” moves dominated until the mid-1970s. By using extensive chess knowledge at each node, these programs selected a few moves which they consid- ered plausible, and thus pruned large parts of the search tree. However, plausible- move generating programs had serious tactical shortcomings, and as soon as brute-force search programs such as Tech [17] and Chess 4.x [29] managed to reach depths of 5 plies and more, plausible-move generating programs fre- quently lost to brute-force searchers due to their tactical weaknesses. -
Palma De Mallorca (1965-1972) Botvinnik, Smyslov, Petrosian, Spassky Not Winning !
Palma de Mallorca (1965-1972) Botvinnik, Smyslov, Petrosian, Spassky not winning ! YEAR WINNER COUNTRY POINTS Arturo Pomar Salamanca * Spain 1965 Albéric O'Kelly Belgium 6'5/9 Klaus Darga Germany 1966 Mikhail Tal USSR 12/15 1967 Bent Larsen Denmark 13/17 1968 Viktor Korchnoi USSR 14/17 1969 Bent Larsen Denmark 12/17 1970 Bobby Fischer USA 18'5/23 (IZT) Ljubomir Ljubojevic * Yugoslavia 1971 11/15 Oscar Panno Argentina Oscar Panno * Argentina 1972 Jan Smejkal Czechoslovakia 10/15 Viktor Korchnoi USSR Eight editions of Palma, annually from 1965 to 1972 (including the Interzonal from 1970). Twice winners at Palma de Mallorca are Bent Larsen, Viktor Korchnoi, and Oscar Panno. Note: All post-war World Chess Champions (then) did participate at Palma de Mallorca series: Botvinnik, Smyslov, Tal (winner 1966), Petrosian, Spassky, and Fischer (winner of IZT 1970), meaning no less than four World Chess Champions did play but not win at Palma de Mallorca. Legendary Oscar Panno, the first Argentine-born grandmaster, winner at Palma 1971 & 1972 Palma de Mallorca – survey by Jan van Reek, endgame.nl Pgn Chess tournaments in Palma de Mallorca Cb-file chess tournaments in Palma de Mallorca An annual international chess tournament happened in Palma de Mallorca, the birthplace of Arturo Pomar. The first installment lasted from 15 until 23 xi 1965. Ten men participated in a modest field. Pomar Salamanca (participating six times in 1965, 1966, 1968, 1969, 1971, 1972) won on tie-break. The second Palma de Mallorca tournament had a much larger budget. Sponsors were Hotel Jaime I, Palma tourist industry, Spanish chess federation and Asociacion de la Prenza.