Dynamic Play in the World Champions' Masterpieces
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
Fide Online Chess Regulations
Annex 6.4 FIDE ONLINE CHESS REGULATIONS Introduction The FIDE Online Chess Regulations are intended to cover all competitions where players play on the virtual chessboard and transmit moves via the internet. Wherever possible, these Regulations are intended to be identical to the FIDE Laws of Chess and related FIDE competition regulations. They are intended for use by players and arbiters in official FIDE online competitions, and as a technical specification for online chess platforms hosting these competitions. These Regulations cannot cover all possible situations that may arise during a competition, but it should be possible for an arbiter with the necessary competence, sound judgment, and objectivity, to arrive at the correct decision based on his/her understanding of these Regulations. Annex 6.4 Contents Introduction ..................................................................................................................................... 1 Part I: Basic Rules of Play ................................................................................................................. 3 Article 1: Application of the FIDE Laws of Chess .............................................................................. 3 Part II: Online Chess Rules ............................................................................................................... 3 Article 2: Playing Zone ................................................................................................................... 3 Article 3: Moving the Pieces on -
A Combinatorial Game Theoretic Analysis of Chess Endgames
A COMBINATORIAL GAME THEORETIC ANALYSIS OF CHESS ENDGAMES QINGYUN WU, FRANK YU,¨ MICHAEL LANDRY 1. Abstract In this paper, we attempt to analyze Chess endgames using combinatorial game theory. This is a challenge, because much of combinatorial game theory applies only to games under normal play, in which players move according to a set of rules that define the game, and the last player to move wins. A game of Chess ends either in a draw (as in the game above) or when one of the players achieves checkmate. As such, the game of chess does not immediately lend itself to this type of analysis. However, we found that when we redefined certain aspects of chess, there were useful applications of the theory. (Note: We assume the reader has a knowledge of the rules of Chess prior to reading. Also, we will associate Left with white and Right with black). We first look at positions of chess involving only pawns and no kings. We treat these as combinatorial games under normal play, but with the modification that creating a passed pawn is also a win; the assumption is that promoting a pawn will ultimately lead to checkmate. Just using pawns, we have found chess positions that are equal to the games 0, 1, 2, ?, ", #, and Tiny 1. Next, we bring kings onto the chessboard and construct positions that act as game sums of the numbers and infinitesimals we found. The point is that these carefully constructed positions are games of chess played according to the rules of chess that act like sums of combinatorial games under normal play. -
Computer Analysis of World Chess Champions 65
Computer Analysis of World Chess Champions 65 COMPUTER ANALYSIS OF WORLD CHESS CHAMPIONS1 Matej Guid2 and Ivan Bratko2 Ljubljana, Slovenia ABSTRACT Who is the best chess player of all time? Chess players are often interested in this question that has never been answered authoritatively, because it requires a comparison between chess players of different eras who never met across the board. In this contribution, we attempt to make such a comparison. It is based on the evaluation of the games played by the World Chess Champions in their championship matches. The evaluation is performed by the chess-playing program CRAFTY. For this purpose we slightly adapted CRAFTY. Our analysis takes into account the differences in players' styles to compensate the fact that calm positional players in their typical games have less chance to commit gross tactical errors than aggressive tactical players. Therefore, we designed a method to assess the difculty of positions. Some of the results of this computer analysis might be quite surprising. Overall, the results can be nicely interpreted by a chess expert. 1. INTRODUCTION Who is the best chess player of all time? This is a frequently posed and interesting question, to which there is no well founded, objective answer, because it requires a comparison between chess players of different eras who never met across the board. With the emergence of high-quality chess programs a possibility of such an objective comparison arises. However, so far computers were mostly used as a tool for statistical analysis of the players' results. Such statistical analyses often do neither reect the true strengths of the players, nor do they reect their quality of play. -
Download the Booklet of Chessbase Magazine #199
THE Magazine for Professional Chess JANUARY / FEBRUARY 2021 | NO. 199 | 19,95 Euro S R V ON U I O D H E O 4 R N U A N DVD H N I T NG RE TIME: MO 17 years old, second place at the Altibox Norway Chess: Alireza Firouzja is already among the Top 20 TOP GRANDmasTERS ANNOTATE: ALL IN ONE: SEMI-TaRRasCH Duda, Edouard, Firouzja, Igor Stohl condenses a Giri, Nielsen, et al. trendy opening AVRO TOURNAMENT 1938 – LONDON SYSTEM – no reST FOR THE Bf4 CLash OF THE GENERATIONS Alexey Kuzmin hits with the Retrospective + 18 newly annotated active 5...Nh5!? Keres games THE MODERN BENONI UNDER FIRE! Patrick Zelbel presents a pointed repertoire with 6.Nf3/7.Bg5 THE MAGAZINE FOR PROFESSIONAL CHESS JANU 17 years old, secondARY / placeFEB at the RU Altibox Norway Chess: AlirezaAR FirouzjaY 2021 is already among the Top 20 NO . 199 1 2 0 2 G R U B M A H , H B M G E S DVD with first class training material for A B S S E club players and professionals! H C © EDITORIAL The new chess stars: Alireza Firouzja and Moscow in order to measure herself against Beth Harmon the world champion in a tournament. She is accompanied by a US official who warns Now the world and also the world of chess her about the Soviets and advises her not to has been hit by the long-feared “second speak with anyone. And what happens? She wave” of the Covid-19 pandemic. Many is welcomed with enthusiasm by the popu- tournaments have been cancelled. -
2020-21 Candidates Tournament ROUND 9
2020-21 Candidates Tournament ROUND 9 CATALAN OPENING (E05) easy to remove and will work together with the GM Anish Giri (2776) other pieces to create some long-term ideas. GM Wang Hao (2763) A game between two other top players went: 2020-2021 Candidates Tournament 14. Rac1 Nb4 15. Rfd1 Ra6 (15. ... Bxf3! 16. Bxf3 Yekaterinburg, RUS (9.3), 04.20.2021 c6 is the most solid approach in my opinion. I Annotations by GM Jacob Aagaard cannot see a valid reason why the bishop on f3 for Chess Life Online is a strong piece.) 16. Qe2 Nbd5 17. Nb5 Ne7 18. The Game of the Day, at least in terms of Nd2 Bxg2 19. Kxg2 Nfd5 20. Nc4 Ng6 21. Kh1 drama, was definitely GM Ding Liren versus Qe7 22. b3 Rd8 23. Rd2 Raa8 24. Rdc2 Nb4 25. GM Maxime Vachier-Lagrave. Drama often Rd2 Nd5 26. Rdc2, and the game was drawn in Ivanchuk – Dominguez Perez, Varadero 2016. means bad moves, which was definitely the case there. Equally important for the tournament 14. ... Bxg2 15. Kxg2 c6 16. h3!N 8. ... Bd7 standings was the one win of the day. GM Anish Giri moves into shared second place with this The bishop is superfluous and will be The real novelty of the game, and not a win over GM Wang Hao. exchanged. spectacular one. The idea is simply that the king The narrative of the game is a common one hides on h2 and in many situations leaves the 9. Qxc4 Bc6 10. Bf4 Bd6 11. -
2009 U.S. Tournament.Our.Beginnings
Chess Club and Scholastic Center of Saint Louis Presents the 2009 U.S. Championship Saint Louis, Missouri May 7-17, 2009 History of U.S. Championship “pride and soul of chess,” Paul It has also been a truly national Morphy, was only the fourth true championship. For many years No series of tournaments or chess tournament ever held in the the title tournament was identi- matches enjoys the same rich, world. fied with New York. But it has turbulent history as that of the also been held in towns as small United States Chess Championship. In its first century and a half plus, as South Fallsburg, New York, It is in many ways unique – and, up the United States Championship Mentor, Ohio, and Greenville, to recently, unappreciated. has provided all kinds of entertain- Pennsylvania. ment. It has introduced new In Europe and elsewhere, the idea heroes exactly one hundred years Fans have witnessed of choosing a national champion apart in Paul Morphy (1857) and championship play in Boston, and came slowly. The first Russian Bobby Fischer (1957) and honored Las Vegas, Baltimore and Los championship tournament, for remarkable veterans such as Angeles, Lexington, Kentucky, example, was held in 1889. The Sammy Reshevsky in his late 60s. and El Paso, Texas. The title has Germans did not get around to There have been stunning upsets been decided in sites as varied naming a champion until 1879. (Arnold Denker in 1944 and John as the Sazerac Coffee House in The first official Hungarian champi- Grefe in 1973) and marvelous 1845 to the Cincinnati Literary onship occurred in 1906, and the achievements (Fischer’s winning Club, the Automobile Club of first Dutch, three years later. -
MICROCOSM: Portrait of a European City by Norman Davies (Pp
communicated his desire to the Bishop, in inimitable fashion: MICROCOSM: Portrait of a European City by Norman Davies (pp. 224-266) The Holy Ghost and I are agreed that Prelate Schaffgotsch should be coadjutor of [Bresslau] and that those of your canons who resist him shall be regarded as persons who have surrendered to the Court in Vienna and to the Devil, and, having resisted the Holy Prussia annexed Silesia in the early phase of the Enlightenment. Europe was Ghost, deserve the highest degree of damnation. turning its back on the religious bigotry of the preceding period and was entering the so-called 'Age of Reason'. What is more, Prussia was one of the The Bishop replied in kind: more tolerant of the German states. It did not permit the same degree of religious liberty that had been practised in neighbouring Poland until the late The great understanding between the Holy Ghost and Your Majesty is news to me; I was seventeenth century, but equally it did not profess the same sort of religious unaware that the acquaintance had been made. I hope that He will send the Pope and the partisanship that surrounded the Habsburgs. The Hohenzollerns of Berlin had canons the inspiration appropriate to our wishes. welcomed Huguenot refugees from France and had found a modus vivendi between Lutherans and Calvinists. In this case, the King was unsuccessful. A compromise solution had to be Yet religious life in Prussian Silesia would not lack controversy. The found whereby the papal nuncio in Warsaw was charged with Silesian affairs. annexation of a predominantly Catholic province by a predominantly But, in 1747, the King tried again and Schaffgotsch, aged only thirty-one, was Protestant kingdom was to bring special problems. -
Life Cycle Patterns of Cognitive Performance Over the Long
Life cycle patterns of cognitive performance over the long run Anthony Strittmattera,1 , Uwe Sundeb,1,2, and Dainis Zegnersc,1 aCenter for Research in Economics and Statistics (CREST)/Ecole´ nationale de la statistique et de l’administration economique´ Paris (ENSAE), Institut Polytechnique Paris, 91764 Palaiseau Cedex, France; bEconomics Department, Ludwig-Maximilians-Universitat¨ Munchen,¨ 80539 Munchen,¨ Germany; and cRotterdam School of Management, Erasmus University, 3062 PA Rotterdam, The Netherlands Edited by Robert Moffit, John Hopkins University, Baltimore, MD, and accepted by Editorial Board Member Jose A. Scheinkman September 21, 2020 (received for review April 8, 2020) Little is known about how the age pattern in individual perfor- demanding tasks, however, and are limited in terms of compara- mance in cognitively demanding tasks changed over the past bility, technological work environment, labor market institutions, century. The main difficulty for measuring such life cycle per- and demand factors, which all exhibit variation over time and formance patterns and their dynamics over time is related to across skill groups (1, 19). Investigations that account for changes the construction of a reliable measure that is comparable across in skill demand have found evidence for a peak in performance individuals and over time and not affected by changes in technol- potential around ages of 35 to 44 y (20) but are limited to short ogy or other environmental factors. This study presents evidence observation periods that prevent an analysis of the dynamics for the dynamics of life cycle patterns of cognitive performance of the age–performance profile over time and across cohorts. over the past 125 y based on an analysis of data from profes- An additional problem is related to measuring productivity or sional chess tournaments. -
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. -
A Feast of Chess in Time of Plague – Candidates Tournament 2020
A FEAST OF CHESS IN TIME OF PLAGUE CANDIDATES TOURNAMENT 2020 Part 1 — Yekaterinburg by Vladimir Tukmakov www.thinkerspublishing.com Managing Editor Romain Edouard Assistant Editor Daniël Vanheirzeele Translator Izyaslav Koza Proofreader Bob Holliman Graphic Artist Philippe Tonnard Cover design Mieke Mertens Typesetting i-Press ‹www.i-press.pl› First edition 2020 by Th inkers Publishing A Feast of Chess in Time of Plague. Candidates Tournament 2020. Part 1 — Yekaterinburg Copyright © 2020 Vladimir Tukmakov 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, recording or otherwise, without the prior written permission from the publisher. ISBN 978-94-9251-092-1 D/2020/13730/26 All sales or enquiries should be directed to Th inkers Publishing, 9850 Landegem, Belgium. e-mail: [email protected] website: www.thinkerspublishing.com TABLE OF CONTENTS KEY TO SYMBOLS 5 INTRODUCTION 7 PRELUDE 11 THE PLAY Round 1 21 Round 2 44 Round 3 61 Round 4 80 Round 5 94 Round 6 110 Round 7 127 Final — Round 8 141 UNEXPECTED CONCLUSION 143 INTERIM RESULTS 147 KEY TO SYMBOLS ! a good move ?a weak move !! an excellent move ?? a blunder !? an interesting move ?! a dubious move only move =equality unclear position with compensation for the sacrifi ced material White stands slightly better Black stands slightly better White has a serious advantage Black has a serious advantage +– White has a decisive advantage –+ Black has a decisive advantage with an attack with initiative with counterplay with the idea of better is worse is Nnovelty +check #mate INTRODUCTION In the middle of the last century tournament compilations were ex- tremely popular. -
Amateur Champion
• U. S . AMATEUR CHAMPION (S('c P. 135) • ;::. UNITED STATES VoLume XlX June, 1964 EDITOR: J . F. Reinhardt * * OFFICIAL NOTICE '" " ELECTION OF USCF STATE DIRECTORS CHESS FEDERATION Attention of aU officials of slate chess associations is directed to Article V of the USCF By-Laws, stating that " ... the State Directors shaD be certified PRESIDENT in writing to the USCF Secretary by the authorized state offiCt' r before June 30th ••." Major Edmund B. Edmondson, Jr. The number of State DirC<!tors to which each State is entitled for the year VICE·PRESIDENT beginning July 1 fo llows: David Hoffmann N.Y . ....... ...... .. ...23 FLA. .. ... ... ... ....... 4 IOWA ................ 2 KY." ... ............. 1 CALIF . .............. 23 ARIZ.- ....... ....... 4 NEBR. - ............ 2 ~IISS ................. 1 REGIONAL VICE·PRESIDENTS PENNA. ............ 11 IND.- . ......... ...... 3 MO .· .... ..... ..... .... 2 PUERTO RICO~ 1 NEW ENGLAND ILL. ...... ... ........ 10 COLO.· .. .......... 3 KANS. ~ ............ 2 N. DAK." ........ 1 N.J . .. ..... ...... ....... 9 WASH. ........... 3 OKLA. ;' ............ 2 S. DAK. ............ 1 EASTERN Donald Schultz TEXAS ... ........... 8 VA. ............... ..... 3 N. MEX ." ..... ... 2 \\'YO.- .. ............ 1 Charln KeYltlr Peter Berlo.,.. OHIO ................ 8 LA. ..... ............ ... 3 NEV........ .... ..... 2 .lI O;"""I' ." ............ 1 MleR ......... ....... 7 D.C. ' ...... ... ... ...... 2 UTAH8 ............ 2 ARK. ...... ... ....... 1 MID·ATLANTIC MASS." ............ 6 W. VA ............. 2 MAINE" -
A Glimpse Into the Complex Mind of Bobby Fischer July 24, 2014 – June 7, 2015
Media Contact: Amanda Cook [email protected] 314-598-0544 A Memorable Life: A Glimpse into the Complex Mind of Bobby Fischer July 24, 2014 – June 7, 2015 July XX, 2014 (Saint Louis, MO) – From his earliest years as a child prodigy to becoming the only player ever to achieve a perfect score in the U.S. Chess Championships, from winning the World Championship in 1972 against Boris Spassky to living out a controversial retirement, Bobby Fischer stands as one of chess’s most complicated and compelling figures. A Memorable Life: A Glimpse into the Complex Mind of Bobby Fischer opens July 24, 2014, at the World Chess Hall of Fame (WCHOF) and will celebrate Fischer’s incredible career while examining his singular intellect. The show runs through June 7, 2015. “We are thrilled to showcase many never-before-seen artifacts that capture Fischer’s career in a unique way. Those who study chess will have the rare opportunity to learn from his notes and books while casual fans will enjoy exploring this superstar’s personal story,” said WCHOF Chief Curator Bobby Fischer, seen from above, Shannon Bailey. makes a move during the 1966 Piatigorsky Cup. Several of the rarest pieces on display are on generous loan from Dr. Jeanne and Rex Sinquefield, owners of a a collection of material from Fischer’s own library that includes 320 books and 400 periodicals. These items supplement highlights from WCHOF’s permanent collection to create a spectacular show. Highlights from the exhibition: Furniture from the home of Fischer’s mentor Jack Collins, which