Correspondence chess is chess played by various forms of long-distance correspondence, usually through a correspondence chess server, through email or by the postal system; less common methods which have been employed include fax and homing pigeon. It is in contrast to over-the-board (OTB) chess, where the players sit at a chessboard at the same time (or perhaps play at the same time remotely).
Correspondence chess allows people or clubs who are geographically distant to play one another without meeting in person. These distant relationships are just one of the many distinct appeals of correspondence chess. The length of a game played by correspondence can vary depending on the method used to transmit the moves: a game played via server or by email might last no more than a few days, weeks, or months, but a game played by post between players in different countries might last several years.
Structure of correspondence chess
Correspondence chess differs from over-the-board play in several respects. While players in OTB chess generally play one at a time (an exception being a simultaneous exhibition), correspondence players often have several games going at once. Tournament games are played concurrently, and some players may have more than one hundred games continuing at the same time.
Time limits in correspondence play are usually between 30 and 60 days for every 10 moves (plus transmission time in postal chess). This time allows for far deeper calculation, meaning that blunders can be less frequent. Certain forms of assistance, including books, chess databases and sometimes chess programs, are often allowed. Books and databases are almost universally acceptable, but organizations vary as to whether chess engine use is permitted.
The new phenomenon of computer assistance has altered the essence of correspondence chess and in addition to profound chess knowledge and analytical discipline, the ability to interpret and guide computer analysis has become important. Given that even players with poor chess knowledge can use the strongest computer programs to analyse their games, the gap between the beginner and master player has narrowed in recent years. However, the influence of computer assistance remains controversial in both official and casual play, and consensus on the issue of whether to allow computer aid is still lacking.
Regulatory bodies of correspondence chess
Correspondence chess tournaments are usually played under the auspices of an official regulatory body, most importantly International Correspondence Chess Federation (ICCF), which is affiliated with FIDE, the international chess organization. However, the ICCF, which organizes postal and email events, is not the only organization involved in correspondence chess. There are numerous national and regional bodies for postal chess, as well as a number of organisations devoted to organize email play for free such as the International Email Chess Group (IECG), the Free Internet Correspondence Games Server (FICGS), that also runs a world championship cycle, and International E-mail Chess Club (IECC). However, groups other than the ICCF are not sanctioned by FIDE.
The ICCF awards the titles International Master, Senior International Master and International Correspondence Chess Grandmaster — these are equivalent to similar titles awarded by FIDE for over-the-board chess. The ICCF also runs the World Correspondence Chess Championships. Because these events can last a long time, they may overlap: for instance, in February 2005 Joop van Oosterom was declared winner of the eighteenth Championship (which began in June 2003), though the winner of the seventeenth Championship (which began in March 2002) had not yet been determined.
Up until 2004, ICCF correspondence chess was played only via email and postal mail. For playing by these two forms of transmission, the ICCF developed their own game notation, known as the ICCF numeric notation, especially for the purpose of ICCF correspondence chess.
In recent years, the use of increasingly powerful chess programs have brought forth new challenges for organizations like the ICCF and the U.S. Chess Federation, necessitating sometimes controversial decisions on the admissibility of such programs in official correspondence play.
Moreover, the emergence of the Internet has brought new opportunities for correspondence chess, not all of which are organized by official bodies. Casual correspondence chess includes correspondence play initiated through correspondence chess servers and games played between individuals who meet and play on their own. Casual correspondence play does not lead to official ratings, though some chess servers will calculate ratings for the players based on results on that server.
Types of correspondence chess
There are three main types of correspondence chess, with server based correspondence chess becoming the most popular form in the world today, with major correspondence servers becoming as large and popular as the online blitz chess servers.
Server-based correspondence chess
Correspondence chess servers are usually database-driven and carry with them a web-based interface for submitting moves to the database. But they do create the possibility of facilitating any method of transmission, as long as the transmitted moves are audited within the server's database.
Server fees vary. Most casual servers use a yearly charging model, whereby players can play as many tournaments or games as they want all year round. Some servers offer basic membership for free, with more services available for a fee. Also more casual servers allow the use of nicknames, and have a real-time rating system which often adjusts a player's rating after each rated game. Casual servers also tend to have a wide range of facilities, such as online games databases, social and chess improvement forums, teams, and player homepages. More traditionally based correspondence chess servers often charge per tournament and still force the use of real names, which some claim raises privacy implications[who?].
The International Correspondence Chess Federation (ICCF) closely cooperates with the world chess organization FIDE. All ICCF titles, championships and ratings are recognised by FIDE.
Mobile correspondence chess
With the advent of smart-phones such as Apple's iPhone, Blackberry and Android based devices correspondence chess has seen a recent rise in popularity as applications on these devices. Usually the devices use Wifi, GPRS, 3G and sometimes SMS technology to submit their moves to a central server.
Email-based correspondence chess
There are organizations devoted to organizing play by email, such as the International E-mail Chess Club (IECC).
Email play has gradually declined in popularity due to issues such as email viruses, opponents' claims of not receiving moves, and similar impediments to the point email play has arguably been superseded by server-based correspondence chess, where usually the interface to a chess server is a web-based interface.
Postal (traditional mail) correspondence chess
There are national and regional organizations for postal chess which use traditional "snail mail" for transmitting moves between players. The ICCF and affiliated local and national federations often organize postal events. Other examples of groups offering postal play include the Correspondence Chess League of America (CCLA) and the United States Chess Federation (USCF). However, groups other than the ICCF and affiliates are not sanctioned by FIDE.
Traditional postal chess organizations such as the International Correspondence Chess Association, the Correspondence Chess League of America (CCLA), and the United States Chess Federation (USCF) have added email and/or server-based options to their correspondence play.
Postal correspondence chess has arguably been superseded by email-based correspondence chess, where play per game is cheaper—each move usually delivered free and instantaneously by email. But there are still devotees.
Over-the-board players who also play correspondence chess
Although nowadays the strongest correspondence players are specialists, a number of notable players in over-the-board (OTB) chess have in the past played postal games during their chess career. Olga Rubtsova won both the world OTB and correspondence championships for women. Former world correspondence champions Alberic O'Kelly de Galway and Viacheslav Ragozin were all OTB Grandmasters, and Yakov Estrin, C.J.S. Purdy and Mikhail Umansky were OTB International Masters. Players who have received the GM title in both fields include Ulf Andersson, Igor Bondarevsky, Aivars Gipslis, Curt Hansen, Jonny Hector, Jānis Klovāns, Olita Rause (WGM), Lothar Schmid and Duncan Suttles. Correspondence GMs Janos Balogh, Olaf Barda, Jean Hebert, Jonathan Penrose and Richard Polaczek are also OTB International Masters, and OTB GM Alexander Tolush was a correspondence IM. Correspondence GM Martin Kreuzer is an FM in OTB. Paul Keres, an Estonian sometimes regarded as the strongest player never to become world champion, played many games of correspondence chess, apparently because he had difficulty finding players in his native country anywhere near strong enough to give him a decent game. OTB world champions Alexander Alekhine and Max Euwe also played. Ulf Andersson also achieved very high ratings in both ICCF and FIDE, remaining in the FIDE Top 100 unto June 2002 and consistently ranked second on ICCF. Andrei Sokolov is another OTB GM who has recently taken up email chess. World Correspondence Champion Hans Berliner is also an OTB International Master.
ICCF World Champions
Dates given are the period in which the final of the championship took place, as given on the ICCF website.
- Cecil John Seddon Purdy (1950–53)
- Viacheslav Ragozin (1956–59)
- Albéric O'Kelly de Galway (1959–62)
- Vladimir Zagorovsky (1962–65)
- Hans Berliner (1965–68)
- Horst Rittner (1968–71)
- Yakov Estrin (1972–76)
- Jørn Sloth (1975–80)
- Tõnu Õim (1977–83)
- Victor Palciauskas (1978–84)
- Friedrich Baumbach (1983–89)
- Grigory Sanakoev (1984–91)
- Mikhail Umansky (1989–98)
- Tõnu Õim (1994–2000)
- Gert Jan Timmerman (1996–2002)
- Tunç Hamarat (1999–2004)
- Ivar Bern (2002–2007)
- Joop van Oosterom (2003–2005)
- Christophe Léotard (2004–2007)
- Pertti Lehikoinen (2004–2011)
- Joop van Oosterom (2005–2008)
- Aleksandr Surenovich Dronov (2007–2010)
- Ulrich Stephan (2007–2010)
- Marjan Šemrl (2009–2011)
- Olga Rubtsova (1968–72)
- Lora Jakovleva (1972–77)
- Ljuba Kristol (1978–84)
- Liudmila Belavenets (1984–92)
- Ljuba Kristol (1993–98)
- Alessandra Riegler (2000–05)
- Olga Mikhailovna Sukhareva (2002–2006)
- Olga Mikhailovna Sukhareva (2007–2010)
FICGS World Champions
- Xavier Pichelin (2008)
- Xavier Pichelin (2009)
- Edward Kotlyanskiy (2010)
- Eros Riccio (2011)
- Eros Riccio (2011)
- ^ Craig Sadler, "Facts, Games and World Champions of Correspondence Chess," Schemingmind.com
- ^ Correspondencechess.com.
- ^ Chess-iecc.com
- ^ Older ICCF Playing Rules Email - Individual and Team tournament games (01.01.05-31.12.08 -Older ICCF Playing Rules WEBSERVER - (01.01.05-31.12.08) Correspondence Chess[dead link] Alex Dunne, "The Check is in the Mail," column, Chess Life (March 2007), online at (p. 5)
- ^ Tables.iccf.com
- Dunne, Alex (1991), The Complete Guide to Correspondence Chess, Thinker's Press, ISBN 0-938650-52-1
- Russell, Hannon W. (1980), Correspondence Chess, Thinker's Press
- IECC - International E-mail Chess Club
- ICCF – International Correspondence Chess Federation
- FICGS – Free Internet Correspondence Games Server
- IECG – International Email Chess Group
- CCLA - Correspondence Chess League of America
- Chesspresso - Correspondence Chess for Android devices.
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