53Rd WORLD CONGRESS of CHESS COMPOSITION Crete, Greece, 16-23 October 2010
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Combinatorics on the Chessboard
Combinatorics on the Chessboard Interactive game: 1. On regular chessboard a rook is placed on a1 (bottom-left corner). Players A and B take alternating turns by moving the rook upwards or to the right by any distance (no left or down movements allowed). Player A makes the rst move, and the winner is whoever rst reaches h8 (top-right corner). Is there a winning strategy for any of the players? Solution: Player B has a winning strategy by keeping the rook on the diagonal. Knight problems based on invariance principle: A knight on a chessboard has a property that it moves by alternating through black and white squares: if it is on a white square, then after 1 move it will land on a black square, and vice versa. Sometimes this is called the chameleon property of the knight. This is related to invariance principle, and can be used in problems, such as: 2. A knight starts randomly moving from a1, and after n moves returns to a1. Prove that n is even. Solution: Note that a1 is a black square. Based on the chameleon property the knight will be on a white square after odd number of moves, and on a black square after even number of moves. Therefore, it can return to a1 only after even number of moves. 3. Is it possible to move a knight from a1 to h8 by visiting each square on the chessboard exactly once? Solution: Since there are 64 squares on the board, a knight would need 63 moves to get from a1 to h8 by visiting each square exactly once. -
A Package to Print Chessboards
chessboard: A package to print chessboards Ulrike Fischer November 1, 2020 Contents 1 Changes 1 2 Introduction 2 2.1 Bugs and errors.....................................3 2.2 Requirements......................................4 2.3 Installation........................................4 2.4 Robustness: using \chessboard in moving arguments..............4 2.5 Setting the options...................................5 2.6 Saving optionlists....................................7 2.7 Naming the board....................................8 2.8 Naming areas of the board...............................8 2.9 FEN: Forsyth-Edwards Notation...........................9 2.10 The main parts of the board..............................9 3 Setting the contents of the board 10 3.1 The maximum number of fields........................... 10 1 3.2 Filling with the package skak ............................. 11 3.3 Clearing......................................... 12 3.4 Adding single pieces.................................. 12 3.5 Adding FEN-positions................................. 13 3.6 Saving positions..................................... 15 3.7 Getting the positions of pieces............................ 16 3.8 Using saved and stored games............................ 17 3.9 Restoring the running game.............................. 17 3.10 Changing the input language............................. 18 4 The look of the board 19 4.1 Units for lengths..................................... 19 4.2 Some words about box sizes.............................. 19 4.3 Margins......................................... -
The Oldest Books on Modern Chess
The Oldest Books on Modern Chess By Jon Crumiller © 2016 Worldchess.com Nobody expects the Spanish Inquisition. But when players respond to 1. e4 with 1. … e5, they can often be subjected to the Spanish Torture. That’s a well-known nickname for the Ruy López, one of the oldest and most commonly used openings in chess. The nickname is possibly not a coincidence; the Inquisition was active in Spain in 1561, the same year that the Spanish priest named Ruy López de Segura published his celebrated work, Libro de la Invencion liberal y Arte del juego del Axedrez. The book contained the analysis from which the chess opening received its eponymous name. Jonathan Crumiller The passage highlighted above can roughly be translated: White king’s pawn goes to the fourth. If black plays the king’s pawn to the fourth: white plays the king’s knight to the king’s bishop third, over the pawn. If black plays the queen’s knight to queen’s bishop third: white plays the king’s bishop to the fourth square of the contrary queen’s knight, opposed to that knight. Or in our modern chess language: 1. e4, e5 2. Nf3, Nc6 3. Bb5. Jonathan Crumiller On the right is how the Ruy López opening would have looked four centuries ago with a standard chess set and board in Spain. This Spanish chess set is one of my oldest complete sets (along with a companion wooden set of the same era). Jonathan Crumiller Here is the Ruy López as seen with that companion set displayed on a Spanish chessboard, also from the 1600’s. -
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. -
Chess Problems out of the Box
werner keym Chess Problems Out of the Box Nightrider Unlimited Chess is an international language. (Edward Lasker) Chess thinking is good. Chess lateral thinking is better. Photo: Gabi Novak-Oster In 2002 this chess problem (= no. 271) and this photo were pub- lished in the German daily newspaper Rhein-Zeitung Koblenz. That was a great success: most of the ‘solvers’ were wrong! Werner Keym Nightrider Unlimited The content of this book differs in some ways from the German edition Eigenartige Schachprobleme (Curious Chess Problems) which was published in 2010 and meanwhile is out of print. The complete text of Eigenartige Schachprobleme (errata included) is freely available for download from the publisher’s site, see http://www.nightrider-unlimited.de/angebot/keym_1st_ed.pdf. Copyright © Werner Keym, 2018 All rights reserved. Kuhn † / Murkisch Series No. 46 Revised and updated edition 2018 First edition in German 2010 Published by Nightrider Unlimited, Treuenhagen www.nightrider-unlimited.de Layout: Ralf J. Binnewirtz, Meerbusch Printed / bound by KLEVER GmbH, Bergisch Gladbach ISBN 978-3-935586-14-6 Contents Preface vii Chess composition is the poetry of chess 1 Castling gala 2 Four real castlings in directmate problems and endgame studies 12 Four real castlings in helpmate two-movers 15 Curious castling tasks 17 From the Allumwandlung to the Babson task 18 From the Valladao task to the Keym task 28 The (lightened) 100 Dollar theme 35 How to solve retro problems 36 Economical retro records (type A, B, C, M) 38 Economical retro records -
Reshevsky Wins Playoff, Qualifies for Interzonal Title Match Benko First in Atlantic Open
RESHEVSKY WINS PLAYOFF, TITLE MATCH As this issue of CHESS LIFE goes to QUALIFIES FOR INTERZONAL press, world champion Mikhail Botvinnik and challenger Tigran Petrosian are pre Grandmaster Samuel Reshevsky won the three-way playoff against Larry paring for the start of their match for Evans and William Addison to finish in third place in the United States the chess championship of the world. The contest is scheduled to begin in Moscow Championship and to become the third American to qualify for the next on March 21. Interzonal tournament. Reshevsky beat each of his opponents once, all other Botvinnik, now 51, is seventeen years games in the series being drawn. IIis score was thus 3-1, Evans and Addison older than his latest challenger. He won the title for the first time in 1948 and finishing with 1 %-2lh. has played championship matches against David Bronstein, Vassily Smyslov (three) The games wcre played at the I·lerman Steiner Chess Club in Los Angeles and Mikhail Tal (two). He lost the tiUe to Smyslov and Tal but in each case re and prizes were donated by the Piatigorsky Chess Foundation. gained it in a return match. Petrosian became the official chal By winning the playoff, Heshevsky joins Bobby Fischer and Arthur Bisguier lenger by winning the Candidates' Tour as the third U.S. player to qualify for the next step in the World Championship nament in 1962, ahead of Paul Keres, Ewfim Geller, Bobby Fischer and other cycle ; the InterzonaL The exact date and place for this event havc not yet leading contenders. -
Origins of Chess Protochess, 400 B.C
Origins of Chess Protochess, 400 B.C. to 400 A.D. by G. Ferlito and A. Sanvito FROM: The Pergamon Chess Monthly September 1990 Volume 55 No. 6 The game of chess, as we know it, emerged in the North West of ancient India around 600 A.D. (1) According to some scholars, the game of chess reached Persia at the time of King Khusrau Nushirwan (531/578 A.D.), though some others suggest a later date around the time of King Khusrau II Parwiz (590/628 A.D.) (2) Reading from the old texts written in Pahlavic, the game was originally known as "chatrang". With the invasion of Persia by the Arabs (634/651 A.D.), the game’s name became "shatranj" because the phonetic sounds of "ch" and "g" do not exist in Arabic language. The game spread towards the Mediterranean coast of Africa with the Islamic wave of military expansion and then crossed over to Europe. However, other alternative routes to some parts of Europe may have been used by other populations who were playing the game. At the moment, this "Indian, Persian, Islamic" theory on the origin of the game is accepted by the majority of scholars, though it is fair to mention here the work of J. Needham and others who suggested that the historical chess of seventh century India was descended from a divinatory game (or ritual) in China. (3) On chess theories, the most exhaustive account founded on deep learning and many years’ studies is the A History of Chess by the English scholar, H.J.R. -
No. 121 - (Vol.VII) EQ3 July 1996
No. 121 - (Vol.VII) EQ3 July 1996 Editorial Board editors John Roycrofi. 17 New Way Road, London, England NW9 6PL Edvande Gevel Binnen dc Veste 36, 3811 PH Amersfbort, The Netherlands Spotlight-column: J Fleck. Neuer Weg 110, D-47803 Krefeld, Gcnnany Treasurer: J. de Boer, Zevenenderdrift 40, 1251 RC Laren, The Netheriands NEW! YOUR COLUMN - RUN BY ALAIN PALLIER In a new departure amounting to a change of policy, EG invites readers to write in about controversial or other matters of interest. EG is delighted to announce that Alain Pallier from France will 'host' the new correspondence column. Alain has already shown his encyclopedic knowledge of studies and sources in these and in the pages of many other chess magazines. We have every confidence in entrusting him with this open-ended responsibility. Alain has discretion as to which letters will be published, he may edit them, may add comments of his own, and may declare topics closed. Letters will be printed in English. Readers should send their contributions to the following address: Alain Pallier La Mouziniere 85190 La Genetouze France The first topic might well be the '50-move rule*. Contents: Spotlight by Jurgen Fleck 832-833 Opinions: On laws, conventions, and codexes by John Beasley 833-834 Comment on John Beasley's contribution by John Roycroft 834-836 Diagrams and Solutions: Ail Union tourney / Vechemy Novosibirsk '63 836-838 First Viktor Evreinov Memorial Tourney 838-841 Victory 50 (Russian Chess Federation) 841-846 Victory 50 of Zaural (VI Kurgan toy for miniatures) 846-848 33rd Sverdlovsk tourney 848-850 Centenary of the Town of Serov 850-854 Jan van Reek 50 854-862 TidskriftfbrSchackl994 862-865 Pravda(Tirnavia)1989 865 Articles: Semi-pawn studies by A. -
[Math.HO] 4 Oct 2007 Computer Analysis of the Two Versions
Computer analysis of the two versions of Byzantine chess Anatole Khalfine and Ed Troyan University of Geneva, 24 Rue de General-Dufour, Geneva, GE-1211, Academy for Management of Innovations, 16a Novobasmannaya Street, Moscow, 107078 e-mail: [email protected] July 7, 2021 Abstract Byzantine chess is the variant of chess played on the circular board. In the Byzantine Empire of 11-15 CE it was known in two versions: the regular and the symmetric version. The difference between them: in the latter version the white queen is placed on dark square. However, the computer analysis reveals the effect of this ’perturbation’ as well as the basis of the best winning strategy in both versions. arXiv:math/0701598v2 [math.HO] 4 Oct 2007 1 Introduction Byzantine chess [1], invented about 1000 year ago, is one of the most inter- esting variations of the original chess game Shatranj. It was very popular in Byzantium since 10 CE A.D. (and possible created there). Princess Anna Comnena [2] tells that the emperor Alexius Comnenus played ’Zatrikion’ - so Byzantine scholars called this game. Now it is known under the name of Byzantine chess. 1 Zatrikion or Byzantine chess is the first known attempt to play on the circular board instead of rectangular. The board is made up of four concentric rings with 16 squares (spaces) per ring giving a total of 64 - the same as in the standard 8x8 chessboard. It also contains the same pieces as its parent game - most of the pieces having almost the same moves. In other words divide the normal chessboard in two halves and make a closed round strip [1]. -
Courier Chess Rick Knowlton 13 News in Brief / CCI Meetings 17 Advertisements 18 CCI Diary / CCI Information 19 Advertisement 20
The CHESS COLLECTOR VOL XVIII NO 1. 2009 The Chess Collector. Vol XVIII No1. 2009 CONTENTS Editors / Members Comments Jim Joannou 2 Your Move!. Members Page Jim Joannou 3 Updates on Previous Issues Gianfelice Ferlito 4 William Shakespear the Chess Player Gareth Williams 5 Special Announcement Jim Joannou 7 Pole Lathe Turned Chessmen Alan Dewey 9 Courier Chess Rick Knowlton 13 News in Brief / CCI Meetings 17 Advertisements 18 CCI Diary / CCI Information 19 Advertisement 20 Editor’s Comment Front Cover Wall Murial in the main hall of “Chess Despite the talk of recession around the City”, Elista, Kalmykia. Chess city was world, there has still been quite a lot hap- built by FIDE president, Kirsan Ilyumzhi- pening in the chess collecting world with nov in 1998. It was left unused for several exhibitions, auctions and, of course, e- years, but is now being used regularly to Bay. (Although good sets seem to have host many chess tournaments, including dried up more recently on e-Bay) the World championships in 2006. In this issue we are announcing a new de- ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ velopment in the CCI and this magazine! Members Comments Read on to find out what’s happening. CCI Member Mike Wiltshire (CCI UK We recieved three articles by CCI mem- Executive) is pictured below after coming bers, and several advertising requests, so joint second with Ellen Carlsen (sister of space was limited this time round and I Magnus Carlsen) in the amateur tourna- was only able to fit in a minimal amount ment of the recent 7th Gibtelcom chess of smaller items like “News in Brief” or festival in Gibraltar. -
The Chess Players
The Chess Players A Project Submitted in Partial Fulfillment of the Requirements for the Degree of Master of Liberal Studies by Gerry A. Wolfson-Grande May, 2013 Mentor: Dr. Philip F. Deaver Reader: Dr. Steve Phelan Rollins College Hamilton Holt School Master of Liberal Studies Program Winter Park, Florida NOTE TO THE READER: For my thesis project, I have written a novel-in-stories called The Chess Players. This companion piece, “A Game for All Reasons: Musings on the Interdisciplinary Nature of Chess,” is intended to supplement the creative narrative with my analyses assembled over the course of the MLS program. A GAME FOR ALL REASONS: Musings on the Interdisciplinary Nature of Chess By Gerry A. Wolfson-Grande May, 2013 TABLE OF CONTENTS Introduction ......................................................................................................................... 1 Enter the Queen................................................................................................................... 3 Art, Improvisation and Randomness................................................................................. 14 Fortune and Her Wheel: Chess in the Book of the Duchess and the Knight’s Tale ......... 26 Conclusion ........................................................................................................................ 40 Bibliography ..................................................................................................................... 42 Artwork ............................................................................................................................ -
Chess for Overall Development Chess Workbook Student
Chess for Overall Development Chess Workbook Student __________________________ __________________________________ _____ Grade ______ School No ______ Reichl Publishing St. Goar Printed in Quebec CHESS WORKBOOK ADDRESS TO STUDENTS Dear Students! You are in luck! You have such a school subject as Chess. It is a very interesting and useful game. However, only some schools teach Chess. Your class has Chess. Chess training is a good opportunity to learn to play and to develop various abilities that will be helpful both in your studies and your life. We have created this Workbook so that the training will be interesting and useful for you. We invite those who will engage in a year-long chess training to use this Work- book. It is a very unusual Workbook. You will use it both when working on the assign- ments (just like in workbooks on other subjects) and when filling out a special form at the bottom of each page. Take a close look at this form when you have faced the first challenging assignment and felt the need for the teacher’s help. This form is necessary for challenging assignments – those that you may fail to complete by yourself. Filling it out, you will be able to understand what you have managed to do yourself (without the teacher’s help); what challenges you have faced and what your teacher has helped you with. Tomorrow you will be able to autonomously do things that you are doing with the teacher’s help today. This is what learning means: when you are gradually proceed- ing from what you do not know and fail to accomplish to the ability to independently perform most advanced tasks.