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ZUGZWANGS in CHESS STUDIES G.Mcc. Haworth,1 H.M.J.F. Van Der
See discussions, stats, and author profiles for this publication at: https://www.researchgate.net/publication/290629887 Zugzwangs in Chess Studies Article in ICGA journal · June 2011 DOI: 10.3233/ICG-2011-34205 CITATION READS 1 2,142 3 authors: Guy McCrossan Haworth Harold M.J.F. Van der Heijden University of Reading Gezondheidsdienst voor Dieren 119 PUBLICATIONS 354 CITATIONS 49 PUBLICATIONS 1,232 CITATIONS SEE PROFILE SEE PROFILE Eiko Bleicher 7 PUBLICATIONS 12 CITATIONS SEE PROFILE Some of the authors of this publication are also working on these related projects: Chess Endgame Analysis View project The Skilloscopy project View project All content following this page was uploaded by Guy McCrossan Haworth on 23 January 2017. The user has requested enhancement of the downloaded file. 82 ICGA Journal June 2011 NOTES ZUGZWANGS IN CHESS STUDIES G.McC. Haworth,1 H.M.J.F. van der Heijden and E. Bleicher Reading, U.K., Deventer, the Netherlands and Berlin, Germany ABSTRACT Van der Heijden’s ENDGAME STUDY DATABASE IV, HHDBIV, is the definitive collection of 76,132 chess studies. The zugzwang position or zug, one in which the side to move would prefer not to, is a frequent theme in the literature of chess studies. In this third data-mining of HHDBIV, we report on the occurrence of sub-7-man zugs there as discovered by the use of CQL and Nalimov endgame tables (EGTs). We also mine those Zugzwang Studies in which a zug more significantly appears in both its White-to-move (wtm) and Black-to-move (btm) forms. We provide some illustrative and extreme examples of zugzwangs in studies. -
FIDE Laws of Chess
FIDE Laws of Chess FIDE Laws of Chess cover over-the-board play. The Laws of Chess have two parts: 1. Basic Rules of Play and 2. Competition Rules. The English text is the authentic version of the Laws of Chess (which was adopted at the 84th FIDE Congress at Tallinn (Estonia) coming into force on 1 July 2014. In these Laws the words ‘he’, ‘him’, and ‘his’ shall be considered to include ‘she’ and ‘her’. PREFACE The Laws of Chess cannot cover all possible situations that may arise during a game, nor can they regulate all administrative questions. Where cases are not precisely regulated by an Article of the Laws, it should be possible to reach a correct decision by studying analogous situations which are discussed in the Laws. The Laws assume that arbiters have the necessary competence, sound judgement and absolute objectivity. Too detailed a rule might deprive the arbiter of his freedom of judgement and thus prevent him from finding a solution to a problem dictated by fairness, logic and special factors. FIDE appeals to all chess players and federations to accept this view. A necessary condition for a game to be rated by FIDE is that it shall be played according to the FIDE Laws of Chess. It is recommended that competitive games not rated by FIDE be played according to the FIDE Laws of Chess. Member federations may ask FIDE to give a ruling on matters relating to the Laws of Chess. BASIC RULES OF PLAY Article 1: The nature and objectives of the game of chess 1.1 The game of chess is played between two opponents who move their pieces on a square board called a ‘chessboard’. -
Learning to Play Chess Using Temporal Differences
Machine Learning, 40, 243–263, 2000 c 2000 Kluwer Academic Publishers. Manufactured in The Netherlands. Learning to Play Chess Using Temporal Differences JONATHAN BAXTER [email protected] Department of Systems Engineering, Australian National University 0200, Australia ANDREW TRIDGELL [email protected] LEX WEAVER [email protected] Department of Computer Science, Australian National University 0200, Australia Editor: Sridhar Mahadevan Abstract. In this paper we present TDLEAF(), a variation on the TD() algorithm that enables it to be used in conjunction with game-tree search. We present some experiments in which our chess program “KnightCap” used TDLEAF() to learn its evaluation function while playing on Internet chess servers. The main success we report is that KnightCap improved from a 1650 rating to a 2150 rating in just 308 games and 3 days of play. As a reference, a rating of 1650 corresponds to about level B human play (on a scale from E (1000) to A (1800)), while 2150 is human master level. We discuss some of the reasons for this success, principle among them being the use of on-line, rather than self-play. We also investigate whether TDLEAF() can yield better results in the domain of backgammon, where TD() has previously yielded striking success. Keywords: temporal difference learning, neural network, TDLEAF, chess, backgammon 1. Introduction Temporal Difference learning, first introduced by Samuel (Samuel, 1959) and later extended and formalized by Sutton (Sutton, 1988) in his TD() algorithm, is an elegant technique for approximating the expected long term future cost (or cost-to-go) of a stochastic dy- namical system as a function of the current state. -
Chess Openings
Chess Openings PDF generated using the open source mwlib toolkit. See http://code.pediapress.com/ for more information. PDF generated at: Tue, 10 Jun 2014 09:50:30 UTC Contents Articles Overview 1 Chess opening 1 e4 Openings 25 King's Pawn Game 25 Open Game 29 Semi-Open Game 32 e4 Openings – King's Knight Openings 36 King's Knight Opening 36 Ruy Lopez 38 Ruy Lopez, Exchange Variation 57 Italian Game 60 Hungarian Defense 63 Two Knights Defense 65 Fried Liver Attack 71 Giuoco Piano 73 Evans Gambit 78 Italian Gambit 82 Irish Gambit 83 Jerome Gambit 85 Blackburne Shilling Gambit 88 Scotch Game 90 Ponziani Opening 96 Inverted Hungarian Opening 102 Konstantinopolsky Opening 104 Three Knights Opening 105 Four Knights Game 107 Halloween Gambit 111 Philidor Defence 115 Elephant Gambit 119 Damiano Defence 122 Greco Defence 125 Gunderam Defense 127 Latvian Gambit 129 Rousseau Gambit 133 Petrov's Defence 136 e4 Openings – Sicilian Defence 140 Sicilian Defence 140 Sicilian Defence, Alapin Variation 159 Sicilian Defence, Dragon Variation 163 Sicilian Defence, Accelerated Dragon 169 Sicilian, Dragon, Yugoslav attack, 9.Bc4 172 Sicilian Defence, Najdorf Variation 175 Sicilian Defence, Scheveningen Variation 181 Chekhover Sicilian 185 Wing Gambit 187 Smith-Morra Gambit 189 e4 Openings – Other variations 192 Bishop's Opening 192 Portuguese Opening 198 King's Gambit 200 Fischer Defense 206 Falkbeer Countergambit 208 Rice Gambit 210 Center Game 212 Danish Gambit 214 Lopez Opening 218 Napoleon Opening 219 Parham Attack 221 Vienna Game 224 Frankenstein-Dracula Variation 228 Alapin's Opening 231 French Defence 232 Caro-Kann Defence 245 Pirc Defence 256 Pirc Defence, Austrian Attack 261 Balogh Defense 263 Scandinavian Defense 265 Nimzowitsch Defence 269 Alekhine's Defence 271 Modern Defense 279 Monkey's Bum 282 Owen's Defence 285 St. -
Fundamental Endings CYRUS LAKDAWALA
First Steps : Fundamental Endings CYRUS LAKDAWALA www.everymanchess.com About the Author Cyrus Lakdawala is an International Master, a former National Open and American Open Cham- pion, and a six-time State Champion. He has been teaching chess for over 30 years, and coaches some of the top junior players in the U.S. Also by the Author: Play the London System A Ferocious Opening Repertoire The Slav: Move by Move 1...d6: Move by Move The Caro-Kann: Move by Move The Four Knights: Move by Move Capablanca: Move by Move The Modern Defence: Move by Move Kramnik: Move by Move The Colle: Move by Move The Scandinavian: Move by Move Botvinnik: Move by Move The Nimzo-Larsen Attack: Move by Move Korchnoi: Move by Move The Alekhine Defence: Move by Move The Trompowsky Attack: Move by Move Carlsen: Move by Move The Classical French: Move by Move Larsen: Move by Move 1...b6: Move by Move Bird’s Opening: Move by Move Petroff Defence: Move by Move Fischer: Move by Move Anti-Sicilians: Move by Move Opening Repertoire ... c6 First Steps: the Modern 3 Contents About the Author 3 Bibliography 5 Introduction 7 1 Essential Knowledge 9 2 Pawn Endings 23 3 Rook Endings 63 4 Queen Endings 119 5 Bishop Endings 144 6 Knight Endings 172 7 Minor Piece Endings 184 8 Rooks and Minor Pieces 206 9 Queen and Other Pieces 243 4 Introduction Why Study Chess at its Cellular Level? A chess battle is no less intense for its lack of brevity. Because my messianic mission in life is to make the chess board a safer place for students and readers, I break the seal of confessional and tell you that some students consider the idea of enjoyable endgame study an oxymoron. -
No. 123 - (Vol.VIH)
No. 123 - (Vol.VIH) January 1997 Editorial Board editors John Roycrqfttf New Way Road, London, England NW9 6PL Edvande Gevel Binnen de Veste 36, 3811 PH Amersfoort, The Netherlands Spotlight-column: J. Heck, Neuer Weg 110, D-47803 Krefeld, Germany Opinions-column: A. Pallier, La Mouziniere, 85190 La Genetouze, France Treasurer: J. de Boer, Zevenenderdrffi 40, 1251 RC Laren, The Netherlands EDITORIAL achievement, recorded only in a scientific journal, "The chess study is close to the chess game was not widely noticed. It was left to the dis- because both study and game obey the same coveries by Ken Thompson of Bell Laboratories rules." This has long been an argument used to in New Jersey, beginning in 1983, to put the boot persuade players to look at studies. Most players m. prefer studies to problems anyway, and readily Aside from a few upsets to endgame theory, the give the affinity with the game as the reason for set of 'total information' 5-raan endgame their preference. Your editor has fought a long databases that Thompson generated over the next battle to maintain the literal truth of that ar- decade demonstrated that several other endings gument. It was one of several motivations in might require well over 50 moves to win. These writing the final chapter of Test Tube Chess discoveries arrived an the scene too fast for FIDE (1972), in which the Laws are separated into to cope with by listing exceptions - which was the BMR (Board+Men+Rules) elements, and G first expedient. Then in 1991 Lewis Stiller and (Game) elements, with studies firmly identified Noam Elkies using a Connection Machine with the BMR realm and not in the G realm. -
Project - Chess School Polimac Kilkenny
Project - Chess School Polimac Kilkenny Irish Chess Union Academy Instructor Irish Junior Team head Coach Irish Chess Union Junior Officer Chess Teacher in 20 Primary schools and 2 Chess clubs Darko Polimac 59 Seville Lawns Kilkenny City Republic of Ireland Phone +353 86 162 94 15 The Chess School Polimac Kilkenny is the most successful school of chess in Ireland .Established in May 2005 in City Kilkenny – Republic of Ireland . I came from Croatia as 2100 rated player in 2002 and started my work in Kilkenny Chess Club with 4 juniors .One of them is now 2300 player and he just finished his University in Dublin . Since 2003 over 3000 children in their schools learnt how to play chess with me in their Elementary Schools . Not only that we had huge success in competitive chess but as well we did well to Educate our students and to teach them the most important thing – to think ! Despite having 14 Irish Junior Chess Championship , 2 British , 1 Women Fide master and FM I am most proud of the other benefits that Chess gave to my students ! At the moment I am teaching chess in few DEIS schools – disadvantage areas, schools with kids from average or not wealthy families . We found out that kids that play chess are more likely to improve nearly in all subjects but most importantly to socialize with kids from other ( higher social class, wealthier background etc.) schools . Not only that kids are playing chess but as well they are accepted and respected in community as people with great skill . -
Chess Endgame News
Chess Endgame News Article Published Version Haworth, G. (2014) Chess Endgame News. ICGA Journal, 37 (3). pp. 166-168. ISSN 1389-6911 Available at http://centaur.reading.ac.uk/38987/ It is advisable to refer to the publisher’s version if you intend to cite from the work. See Guidance on citing . 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 166 ICGA Journal September 2014 CHESS ENDGAME NEWS G.McC. Haworth1 Reading, UK This note investigates the recently revived proposal that the stalemated side should lose, and comments further on the information provided by the FRITZ14 interface to Ronald de Man’s DTZ50 endgame tables (EGTs). Tables 1 and 2 list relevant positions: data files (Haworth, 2014b) provide chess-line sources and annotation. Pos.w-b Endgame FEN Notes g1 3-2 KBPKP 8/5KBk/8/8/p7/P7/8/8 b - - 34 124 Korchnoi - Karpov, WCC.5 (1978) g2 3-3 KPPKPP 8/6p1/5p2/5P1K/4k2P/8/8/8 b - - 2 65 Anand - Kramnik, WCC.5 (2007) 65. … Kxf5 g3 3-2 KRKRB 5r2/8/8/8/8/3kb3/3R4/3K4 b - - 94 109 Carlsen - van Wely, Corus (2007) 109. … Bxd2 == g4 7-7 KQR..KQR.. 2Q5/5Rpk/8/1p2p2p/1P2Pn1P/5Pq1/4r3/7K w Evans - Reshevsky, USC (1963), 49. -
Multilinear Algebra and Chess Endgames
Games of No Chance MSRI Publications Volume 29, 1996 Multilinear Algebra and Chess Endgames LEWIS STILLER Abstract. This article has three chief aims: (1) To show the wide utility of multilinear algebraic formalism for high-performance computing. (2) To describe an application of this formalism in the analysis of chess endgames, and results obtained thereby that would have been impossible to compute using earlier techniques, including a win requiring a record 243 moves. (3) To contribute to the study of the history of chess endgames, by focusing on the work of Friedrich Amelung (in particular his apparently lost analysis of certain six-piece endgames) and that of Theodor Molien, one of the founders of modern group representation theory and the first person to have systematically numerically analyzed a pawnless endgame. 1. Introduction Parallel and vector architectures can achieve high peak bandwidth, but it can be difficult for the programmer to design algorithms that exploit this bandwidth efficiently. Application performance can depend heavily on unique architecture features that complicate the design of portable code [Szymanski et al. 1994; Stone 1993]. The work reported here is part of a project to explore the extent to which the techniques of multilinear algebra can be used to simplify the design of high- performance parallel and vector algorithms [Johnson et al. 1991]. The approach is this: Define a set of fixed, structured matrices that encode architectural primitives • of the machine, in the sense that left-multiplication of a vector by this matrix is efficient on the target architecture. Formulate the application problem as a matrix multiplication. -
Hhdbiv.Nl for Ordering Details
see website www.hhdbiv.nl for ordering details. The world's largest endgame study database - edition 4 (HHdbIV) Introduction The fourth edition of the famous Harold van der Heijden endgame study database (HHdbIV) is available now. The new edition not only has more than eight thousand extra studies, but also the solutions of tens of thousands of studies have been corrected or updated. It is by far the most comprehensive collection of endgame studies available. Chess players can benefit from endgame studies by trying to solve them. This trains both one's calculation ability and tactical performance in the endgame. For the endgame study enthusiast, either admirer, cook hunter, composer or tourney judge HHdbIV is indispensable. Apart from the new studies the new version has many improvements over the previous edition. www.hhdbiv.nl What is an endgame study? An endgame study is a chess position presented as a puzzle with the stipulation White wins, or White draws, and has a unique solution. Although it looks like a game fragment, an endgame study has been composed. A good endgame study should have an entertaining solution with surprising moves or beautiful combinations that baffle chess players. It is also fun to try and solve endgame studies for both beginners and world class grandmasters as difficulty ranges from simple to very difficult. http://en.wikipedia.org/wiki/Endgame_study Chess Players "Studies are a very important part of the chess culture. I use a lot of studies for the training of imagination and calculations. The study database of Harold van der Heijden is the best source if you are looking for the less known positions". -
Hypermodern Game of Chess the Hypermodern Game of Chess
The Hypermodern Game of Chess The Hypermodern Game of Chess by Savielly Tartakower Foreword by Hans Ree 2015 Russell Enterprises, Inc. Milford, CT USA 1 The Hypermodern Game of Chess The Hypermodern Game of Chess by Savielly Tartakower © Copyright 2015 Jared Becker ISBN: 978-1-941270-30-1 All Rights Reserved No part of this book maybe used, reproduced, stored in a retrieval system or transmitted in any manner or form whatsoever or by any means, electronic, electrostatic, magnetic tape, photocopying, recording or otherwise, without the express written permission from the publisher except in the case of brief quotations embodied in critical articles or reviews. Published by: Russell Enterprises, Inc. PO Box 3131 Milford, CT 06460 USA http://www.russell-enterprises.com [email protected] Translated from the German by Jared Becker Editorial Consultant Hannes Langrock Cover design by Janel Norris Printed in the United States of America 2 The Hypermodern Game of Chess Table of Contents Foreword by Hans Ree 5 From the Translator 7 Introduction 8 The Three Phases of A Game 10 Alekhine’s Defense 11 Part I – Open Games Spanish Torture 28 Spanish 35 José Raúl Capablanca 39 The Accumulation of Small Advantages 41 Emanuel Lasker 43 The Canticle of the Combination 52 Spanish with 5...Nxe4 56 Dr. Siegbert Tarrasch and Géza Maróczy as Hypermodernists 65 What constitutes a mistake? 76 Spanish Exchange Variation 80 Steinitz Defense 82 The Doctrine of Weaknesses 90 Spanish Three and Four Knights’ Game 95 A Victory of Methodology 95 Efim Bogoljubow -
Rules of Chess960
Rules of Chess960 A little known and long-discarded offshoot of Classical Chess is the realm of so-called "Randomized Chess" in its various forms. Chess960 stands for Bobby Fischer's new and improved version of "Randomized Chess". Chess960 uses algebraic notation exclusively At the start of every game of a Chess960 game, both players Pawns are set up exactly as they are at the start of every game of Classical Chess. In Chess960, just before the start of every game, both players pieces on their respective back rows receive an identical random shuffle using the Chess960 Computerized Shuffler, which is programmed to set up the pieces in any combination, with the provisos that one Rook has to be to the left and one Rook has to be to the right of the King, and one Bishop has to be on a light- colored square and one Bishop has to be on a dark-colored square. White and Black have identical positions. From behind their respective Pawns the opponents pieces are facing each other directly, symmetrically. Thus for example, if the shuffler places White's back row pieces in the following position: Ra1, Bb1, Kc1, Nd1, Be1, Nf1, Rg1, Qh1, it will place Black's back row Pieces in the following position, Ra8, Bb8, Kc8, Nd8, Be8, Nf8, Rg8, Qh8, etc. (See diagram) In Chess960 there are 960 possible starting positions, the Classical Chess starting position and 959 other starting positions. Of necessity, In Chess960 the castling rule is somewhat modified and broadened to allow for the possibility of each player castling either on or into his or her left side or on or into his or her right side of the board from all of these 960 starting positions.