Pawns: the Soul of Chess
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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. -
1999/6 Layout
Virginia Chess Newsletter 1999 - #6 1 The Chesapeake Challenge Cup is a rotating club team trophy that grew out of an informal rivalry between two Maryland clubs a couple years ago. Since Chesapeake then the competition has opened up and the Arlington Chess Club captured the cup from the Fort Meade Chess Armory on October 15, 1999, defeating the 1 1 Challenge Cup erstwhile cup holders 6 ⁄2-5 ⁄2. The format for the Chesapeake Cup is still evolving but in principle the idea is that a defense should occur about once every six months, and any team from the “Chesapeake Bay drainage basin” is eligible to issue a challenge. “Choosing the challenger is a rather informal process,” explained Kurt Eschbach, one of the Chesapeake Cup's founding fathers. “Whoever speaks up first with a credible bid gets to challenge, except that we will give preference to a club that has never played for the Cup over one that has already played.” To further encourage broad participation, the match format calls for each team to field players of varying strength. The basic formula stipulates a 12-board match between teams composed of two Masters (no limit), two Expert, and two each from classes A, B, C & D. The defending team hosts the match and plays White on odd-numbered boards. It is possible that a particular challenge could include additional type boards (juniors, seniors, women, etc) by mutual agreement between the clubs. Clubs interested in coming to Arlington around April, 2000 to try to wrest away the Chesapeake Cup should call Dan Fuson at (703) 532-0192 or write him at 2834 Rosemary Ln, Falls Church VA 22042. -
Little Chess Evaluation Compendium by Lyudmil Tsvetkov, Sofia, Bulgaria
Little Chess Evaluation Compendium By Lyudmil Tsvetkov, Sofia, Bulgaria Version from 2012, an update to an original version first released in 2010 The purpose will be to give a fairly precise evaluation for all the most important terms. Some authors might find some interesting ideas. For abbreviations, p will mean pawns, cp – centipawns, if the number is not indicated it will be centipawns, mps - millipawns; b – bishop, n – knight, k- king, q – queen and r –rook. Also b will mean black and w – white. We will assume that the bishop value is 3ps, knight value – 3ps, rook value – 4.5 ps and queen value – 9ps. In brackets I will be giving purely speculative numbers for possible Elo increase if a specific function is implemented (only for the functions that might not be generally implemented). The exposition will be split in 3 parts, reflecting that opening, middlegame and endgame are very different from one another. The essence of chess in two words Chess is a game of capturing. This is the single most important thing worth considering. But in order to be able to capture well, you should consider a variety of other specific rules. The more rules you consider, the better you will be able to capture. If you consider 10 rules, you will be able to capture. If you consider 100 rules, you will be able to capture in a sufficiently good way. If you consider 1000 rules, you will be able to capture in an excellent way. The philosophy of chess Chess is a game of correlation, and not a game of fixed values. -
Life & Games Akiva Rubinstein
The Life & Games of Akiva Rubinstein Volume 2: The Later Years Second Edition by John Donaldson & Nikolay Minev 2011 Russell Enterprises, Inc. Milford, CT USA 1 The Life & Games of Akiva Rubinstein: The Later Years The Life & Games of Akiva Rubinstein Volume 2: The Later Years Second Edition ISBN: 978-1-936490-39-4 © Copyright 2011 John Donaldson and Nikolay Minev All Rights Reserved No part of this book may be used, reproduced, stored in a retrieval system or transmitted in any manner or form whatsoever or by any means, elec- tronic, 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. P.O. Box 3131 Milford, CT 06460 USA http://www.russell-enterprises.com [email protected] Printed in the United States of America 2 Table of Contents Introduction to the 2nd Edition 7 Rubinstein: 1921-1961 12 A Rubinstein Sampler 28 1921 Göteborg 29 The Hague 34 Triberg 44 1922 London 53 Hastings 62 Teplitz-Schönau 72 Vienna 83 1923 Hastings 96 Carlsbad 100 Mährisch-Ostrau 113 1924 Meran 120 Southport 129 Berlin 134 1925 London 137 Baden-Baden 138 Marienbad 153 Breslau 161 Moscow 165 3 The Life & Games of Akiva Rubinstein: The Later Years 1926 Semmering 176 Dresden 189 Budapest 196 Hannover 203 Berlin 207 1927 àyGĨ 212 Warsaw 221 1928 Bad Kissingen 223 Berlin 229 1929 Ramsgate 238 Carlsbad 242 Budapest 260 5RJDãND6ODWLQD 265 1930 San Remo 273 Antwerp (Belgian -
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. -
Chess2vec: Learning Vector Representations for Chess
Chess2vec: Learning Vector Representations for Chess Berk Kapicioglu Ramiz Iqbal∗ Tarik Koc OccamzRazor MD Anderson Cancer Center OccamzRazor [email protected] [email protected] [email protected] Louis Nicolas Andre Katharina Sophia Volz OccamzRazor OccamzRazor [email protected] [email protected] Abstract We conduct the first study of its kind to generate and evaluate vector representations for chess pieces. In particular, we uncover the latent structure of chess pieces and moves, as well as predict chess moves from chess positions. We share preliminary results which anticipate our ongoing work on a neural network architecture that learns these embeddings directly from supervised feedback. 1 Introduction In the last couple of years, advances in machine learning have yielded dramatic improvements in tasks as diverse as visual object classification [9], automatic speech recognition [7], machine translation [18], and natural language processing (NLP) [12]. A common thread among all these tasks is, as diverse as they may seem, they all involve processing input data, such as image, audio, and text, that have not traditionally been amenable to feature engineering. Modern machine learning methods that enabled these breakthroughs did so partly because they shifted the burden away from feature engineering, which is difficult for humans and requires domain expertise, towards designing models that automatically infer feature representations that are relevant for downstream tasks [1]. In this paper, we are interested in learning and studying feature representations of chess positions and pieces. Our work is inspired by how learning vector representation of words [12, 13], also known as word embeddings, yielded improvements in tasks such as syntactic parsing [16] and sentiment analysis [17]. -
Opening Moves - Player Facts
DVD Chess Rules Chess puzzles Classic games Extras - Opening moves - Player facts General Rules The aim in the game of chess is to win by trapping your opponent's king. White always moves first and players take turns moving one game piece at a time. Movement is required every turn. Each type of piece has its own method of movement. A piece may be moved to another position or may capture an opponent's piece. This is done by landing on the appropriate square with the moving piece and removing the defending piece from play. With the exception of the knight, a piece may not move over or through any of the other pieces. When the board is set up it should be positioned so that the letters A-H face both players. When setting up, make sure that the white queen is positioned on a light square and the black queen is situated on a dark square. The two armies should be mirror images of one another. Pawn Movement Each player has eight pawns. They are the least powerful piece on the chess board, but may become equal to the most powerful. Pawns always move straight ahead unless they are capturing another piece. Generally pawns move only one square at a time. The exception is the first time a pawn is moved, it may move forward two squares as long as there are no obstructing pieces. A pawn cannot capture a piece directly in front of him but only one at a forward angle. When a pawn captures another piece the pawn takes that piece’s place on the board, and the captured piece is removed from play If a pawn gets all the way across the board to the opponent’s edge, it is promoted. -
I Make This Pledge to You Alone, the Castle Walls Protect Our Back That I Shall Serve Your Royal Throne
AMERA M. ANDERSEN Battlefield of Life “I make this pledge to you alone, The castle walls protect our back that I shall serve your royal throne. and Bishops plan for their attack; My silver sword, I gladly wield. a master plan that is concealed. Squares eight times eight the battlefield. Squares eight times eight the battlefield. With knights upon their mighty steed For chess is but a game of life the front line pawns have vowed to bleed and I your Queen, a loving wife and neither Queen shall ever yield. shall guard my liege and raise my shield Squares eight times eight the battlefield. Squares eight time eight the battlefield.” Apathy Checkmate I set my moves up strategically, enemy kings are taken easily Knights move four spaces, in place of bishops east of me Communicate with pawns on a telepathic frequency Smash knights with mics in militant mental fights, it seems to be An everlasting battle on the 64-block geometric metal battlefield The sword of my rook, will shatter your feeble battle shield I witness a bishop that’ll wield his mystic sword And slaughter every player who inhabits my chessboard Knight to Queen’s three, I slice through MCs Seize the rook’s towers and the bishop’s ministries VISWANATHAN ANAND “Confidence is very important—even pretending to be confident. If you make a mistake but do not let your opponent see what you are thinking, then he may overlook the mistake.” Public Enemy Rebel Without A Pause No matter what the name we’re all the same Pieces in one big chess game GERALD ABRAHAMS “One way of looking at chess development is to regard it as a fight for freedom. -
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. -
CHESS FEDERATION Newburgh, N.Y
Announcing an important new series of books on CONTEMPORARY CHESS OPENINGS Published by Chess Digest, Inc.-General Editor, R. G. Wade The first book in this current series is a fresh look at 's I IAN by Leonard Borden, William Hartston, and Raymond Keene Two of the most brilliant young ployers pool their talents with one of the world's well-established authorities on openings to produce a modern, definitive study of the King's Indian Defence. An essen tial work of reference which will help master and amateur alike to win more games. The King's Indian Defence has established itself as one of the most lively and populor openings and this book provides 0 systematic description of its strategy, tactics, and variations. Written to provide instruction and under standing, it contains well-chosen illustrative games from octuol ploy, many of them shown to the very lost move, and each with an analysis of its salient features. An excellent cloth-bound book in English Descriptive Notation, with cleor type, good diagrams, and an easy-to-follow format. The highest quality at a very reasonable price. Postpaid, only $4.40 DON'T WAIT-ORDER NOW-THE BOOK YOU MUST HAVE! FLA NINGS by Raymond Keene Raymond Keene, brightest star in the rising galaxy of young British players, was undefeated in the 1968 British Championship and in the 1968 Olympiad at Lugano. In this book, he posses along to you the benefit of his studies of the King's Indian Attack and the Reti, Catalan, English, and Benko Larsen openings. The notation is Algebraic, the notes comprehensive but easily understood and right to the point. -
Livros De Xadrez
LIVROS DE XADREZ No. TÍTULO Autor Editora 1 100 Endgames You Must Know Jesus de la Villa New In Chess 2 Ajedrez - La Lucha por la Iniciativa Orestes Aldama Zambrano Paidotribo 3 Alexander Alekhine Alexander Kotov R.H.M. Press 4 Alexander Alekhine´s Best Games Alexander Alekhine Batsford Chess 5 Analysing the Endgame John Speelman Batsford Chess 6 Art of Chess Combination Znosko-Borovsky Dover 7 Attack and Defence M.Dvoretsky & A.Yusupov Batsford Chess 8 Attack and Defence in Modern Chess Tactics Ludek Pachman RPK 9 Attacking Technique Colin Crouch Batsford Chess 10 Better Chess for Average Players Tim Harding Dover 11 Bishop v/s Knight: The Veredict Steve Mayer Ice 12 Bobby Fischer My 60 Memorable Games Bobby Fischer Faber & Faber Limited 13 Bobby Fischer Rediscovered Andrew Soltis Batsford 14 Bobby Fischer: His Aproach to Chess Elie Agur Cadogan 15 Botvinnik - One Hundred Selected Games M.Botvinnik Dover 16 Building Up Your Chess Lev Alburt Circ 17 Capablanca Edward Winter McFarland 18 Chess Endgame Quis Larry Evans Cardoza Publishing 19 Chess Endings Yuri Averbach Everyman Chess 20 Chess Exam and Training Guide Igor Khmelnitsky I am Coach Press 21 Chess Middlegames Yuri Averbach Cadogan Chess 22 Chess Praxis Aron Nimzowitsch Hays Publishing 23 Chess Praxis Aron Nimzowitsch Hays Publishing 24 Chess Self-Improvement Zenon Franco Gambit 25 Chess Strategy for the Tournament Player Alburt & Palatnik Circ 26 Creative Chess Amatzia Avni Cadogan Chess 27 Creative Chess Opening Preparation Viacheslav Eingorn Gambit 28 Endgame Magic J.Beasley