FIDE Laws of Chess
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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......................................... -
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’. -
53Rd WORLD CONGRESS of CHESS COMPOSITION Crete, Greece, 16-23 October 2010
53rd WORLD CONGRESS OF CHESS COMPOSITION Crete, Greece, 16-23 October 2010 53rd World Congress of Chess Composition 34th World Chess Solving Championship Crete, Greece, 16–23 October 2010 Congress Programme Sat 16.10 Sun 17.10 Mon 18.10 Tue 19.10 Wed 20.10 Thu 21.10 Fri 22.10 Sat 23.10 ICCU Open WCSC WCSC Excursion Registration Closing Morning Solving 1st day 2nd day and Free time Session 09.30 09.30 09.30 free time 09.30 ICCU ICCU ICCU ICCU Opening Sub- Prize Giving Afternoon Session Session Elections Session committees 14.00 15.00 15.00 17.00 Arrival 14.00 Departure Captains' meeting Open Quick Open 18.00 Solving Solving Closing Lectures Fairy Evening "Machine Show Banquet 20.30 Solving Quick Gun" 21.00 19.30 20.30 Composing 21.00 20.30 WCCC 2010 website: http://www.chessfed.gr/wccc2010 CONGRESS PARTICIPANTS Ilham Aliev Azerbaijan Stephen Rothwell Germany Araz Almammadov Azerbaijan Rainer Staudte Germany Ramil Javadov Azerbaijan Axel Steinbrink Germany Agshin Masimov Azerbaijan Boris Tummes Germany Lutfiyar Rustamov Azerbaijan Arno Zude Germany Aleksandr Bulavka Belarus Paul Bancroft Great Britain Liubou Sihnevich Belarus Fiona Crow Great Britain Mikalai Sihnevich Belarus Stewart Crow Great Britain Viktor Zaitsev Belarus David Friedgood Great Britain Eddy van Beers Belgium Isabel Hardie Great Britain Marcel van Herck Belgium Sally Lewis Great Britain Andy Ooms Belgium Tony Lewis Great Britain Luc Palmans Belgium Michael McDowell Great Britain Ward Stoffelen Belgium Colin McNab Great Britain Fadil Abdurahmanović Bosnia-Hercegovina Jonathan -
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. -
PGN/AN Verification for Legal Chess Gameplay
PGN/AN Verification for Legal Chess Gameplay Neil Shah Guru Prashanth [email protected] [email protected] May 10, 2015 Abstract Chess has been widely regarded as one of the world's most popular games through the past several centuries. One of the modern ways in which chess games are recorded for analysis is through the PGN/AN (Portable Game Notation/Algebraic Notation) standard, which enforces a strict set of rules for denoting moves made by each player. In this work, we examine the use of PGN/AN to record and describe moves with the intent of building a system to verify PGN/AN in order to check for validity and legality of chess games. To do so, we formally outline the abstract syntax of PGN/AN movetext and subsequently define denotational state-transition and associated termination semantics of this notation. 1 Introduction Chess is a two-player strategy board game which is played on an eight-by-eight checkered board with 64 squares. There are two players (playing with white and black pieces, respectively), which move in alternating fashion. Each player starts the game with a total of 16 pieces: one king, one queen, two rooks, two knights, two bishops and eight pawns. Each of the pieces moves in a different fashion. The game ends when one player checkmates the opponents' king by placing it under threat of capture, with no defensive moves left playable by the losing player. Games can also end with a player's resignation or mutual stalemate/draw. We examine the particulars of piece movements later in this paper. -
Braille Chess Association Annual General Meeting and Chess Congress
ChessMoves March/April 2010 NEWSLETTER OF THE ENGLISH CHESS FEDERATION £1.50 BraiLLe Chess assoCiation annual General Meeting and Chess Congress George Phillips of Kingston-upon-Thames, winner of the Minor section This chess extravaganza took place at the Hallmark Hotel, Derby from the 5th – 7th March 2010. Chris Ross and George Phillips each achieved perfect five from five scores in the open and the minor events respectively in the annual BCA AGM tournament. One way of boosting attendance at an AGM! (continued on page 3) editorial Today (18/03/10) CJ de Mooi the ECF President visited the Office at Battle for the first time (the original The ECF April Finance Council Meeting will be held in visit was postponed because of the LondonECF on the 17th April. FullNews details and a map are horrendous weather in January). available on the ECF website (www.englishchess.org.uk) This was only my second meeting with CJ and what a really nice, new eCF Manager of Women’s Chess! approachable man he is, unlike the public persona portrayed on Ljubica Lazarevic websites. [email protected] Cynthia Gurney, Editor Ljubica’s interest in chess began watching games played at her secondary school’s chess club. Soon after she eCF Batsford joined what was Grays Chess Club (now Thurrock Chess Club). Over the past few years Ljubica has co-organised Competition tournaments including the British Blitz Championships, Winner JANUARY-FeBrUARY as well as playing in congresses in the UK and abroad. Guy Gibson from Kew Having recently completed her doctorate, Ljubica takes on the role The correct Answer is 1.e5 of manager of women’s chess and is keen to make the game a more This issue’s problem approachable and enjoyable experience for women of all ages and Robin C. -
Chess-Training-Guide.Pdf
Q Chess Training Guide K for Teachers and Parents Created by Grandmaster Susan Polgar U.S. Chess Hall of Fame Inductee President and Founder of the Susan Polgar Foundation Director of SPICE (Susan Polgar Institute for Chess Excellence) at Webster University FIDE Senior Chess Trainer 2006 Women’s World Chess Cup Champion Winner of 4 Women’s World Chess Championships The only World Champion in history to win the Triple-Crown (Blitz, Rapid and Classical) 12 Olympic Medals (5 Gold, 4 Silver, 3 Bronze) 3-time US Open Blitz Champion #1 ranked woman player in the United States Ranked #1 in the world at age 15 and in the top 3 for about 25 consecutive years 1st woman in history to qualify for the Men’s World Championship 1st woman in history to earn the Grandmaster title 1st woman in history to coach a Men's Division I team to 7 consecutive Final Four Championships 1st woman in history to coach the #1 ranked Men's Division I team in the nation pnlrqk KQRLNP Get Smart! Play Chess! www.ChessDailyNews.com www.twitter.com/SusanPolgar www.facebook.com/SusanPolgarChess www.instagram.com/SusanPolgarChess www.SusanPolgar.com www.SusanPolgarFoundation.org SPF Chess Training Program for Teachers © Page 1 7/2/2019 Lesson 1 Lesson goals: Excite kids about the fun game of chess Relate the cool history of chess Incorporate chess with education: Learning about India and Persia Incorporate chess with education: Learning about the chess board and its coordinates Who invented chess and why? Talk about India / Persia – connects to Geography Tell the story of “seed”. -
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. -
An Arbiter's Notebook
10.2 Again Purchases from our shop help keep ChessCafe.com freely accessible: Question: Dear, Mr. Gijssen. I was playing in a tournament and the board next to me played this game: 1.Nf3 Nf6 2.Ng1 Ng8 3.Nf3 Nf6 4.Ng1 Ng8. When a draw was claimed, the arbiter demanded that both players replay the game. When one of them refused, the arbiter forfeited them. Does the opening position count for purposes of threefold repetition? Matthew Larson (UK) Answer In my opinion, the arbiter was right not to accept this game. I refer to Article 12.1 of the Laws of Chess: An Arbiter’s The players shall take no action that will bring the game of chess into disrepute. Notebook To produce a "game" as mentioned in your letter brings the game of chess The Greatest Tournaments into disrepute. The only element in your letter that puzzles me is the fact that Geurt Gijssen 2001-2009 the arbiter forfeited both players, although only one refused to play a new by Chess Informant game. The question of the threefold repetition is immaterial in this case. Question Greetings, Mr. Gijssen. I acted as a member of the appeals committee in a rapid chess tournament (G60/sudden death). I also won that tournament, but I am not a strong player, just 2100 FIDE, with a good understanding of the rules. The incident is as follows: A player lost a game and signed the score sheet, and then he appealed the decision of the arbiter to the committee with regards to some bad rulings during the game. -
Checkmate Bobby Fischer's Boys' Life Columns
Bobby Fischer’s Boys’ Life Columns Checkmate Bobby Fischer’s Boys’ Life Columns by Bobby Fischer Foreword by Andy Soltis 2016 Russell Enterprises, Inc. Milford, CT USA 1 1 Checkmate Bobby Fischer’s Boys’ Life Columns by Bobby Fischer ISBN: 978-1-941270-51-6 (print) ISBN: 978-1-941270-52-3 (eBook) © Copyright 2016 Russell Enterprises, Inc. & Hanon W. Russell 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, 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. Chess columns written by Bobby Fischer appeared from December 1966 through January 1970 in the magazine Boys’ Life, published by the Boy Scouts of America. Russell Enterprises, Inc. thanks the Boy Scouts of America for its permission to reprint these columns in this compilation. Published by: Russell Enterprises, Inc. P.O. Box 3131 Milford, CT 06460 USA http://www.russell-enterprises.com [email protected] Editing and proofreading by Peter Kurzdorfer Cover by Janel Lowrance 2 Table of Contents Foreword 4 April 53 by Andy Soltis May 59 From the Publisher 6 Timeline 60 June 61 July 69 Timeline 7 Timeline 70 August 71 1966 September 77 December 9 October 78 November 84 1967 February 11 1969 March 17 February 85 April 19 March 90 Timeline 22 May 23 April 91 June 24 July 31 May 98 Timeline 32 June 99 August 33 July 107 September 37 August 108 Timeline 38 September 115 October 39 October 116 November 46 November 122 December 123 1968 February 47 1970 March 52 January 128 3 Checkmate Foreword Bobby Fischer’s victory over Emil Nikolic at Vinkovci 1968 is one of his most spectacular, perhaps the last great game he played in which he was the bold, go-for-mate sacrificer of his earlier years. -
Chess Basics
NEWSLETTER Library: Jan-2003 Morals of Chess Feb-2003 Humor in Chess Feb 15th SCC Guidelines March 2003 The History of Chess Notation by Robert John McCrary The number of books on chess is greater the number of books on all other games combined. Yet, chess books would be few and far between if there were not an efficient way to record the moves of games. Chess notation is thus the special written" language" of chess players, making it possible for a single book to contain hundreds of games by great players, or thousands of opening variations. Surprisingly, however, chess notation was slow to evolve. As late as the early nineteenth century, many chess books simply wrote out moves in full sentences! As a result, very few of those early games before the 1800's were recorded and preserved in print, and published analysis was correspondingly limited. In Shakespeare's day, for example, the standard English chess book gave the move 2.Qf3 as follows: " Then the black king for his second draught brings forth his queene, and placest her in the third house, in front of his bishop's pawne." Can we imagine recording a full 40-move game with each move written out like that! Nevertheless, the great 18th century player and author Andre Philidor, in his highly influential chess treatise published in 1747, continued to write out moves as full sentences. One move might read, "The bishop takes the bishop, checking." Or the move e5 would appear as "King's pawn to adverse 4th." Occasionally Philidor would abbreviate something, but generally he liked to spell everything out.