 MChess Pro Screenshot | |
| Developer(s) | Martin Hirsch |
|---|---|
| Stable release | 8.0 |
| Operating system | MS-DOS |
| Type | Chess engine |
| License | Proprietary |
| This article is part of the series on |
| Chess programming |
|---|
 |
MChess Pro is the name given to a chess playing computer program written by Marty Hirsch which won the World Microcomputer Chess Championship in 1995. [1] The program is no longer under development and is no longer commercially available [2] and therefore has largely historical significance only.
The versions of MChess Pro which appear on the historical and current SSDF ratings lists include 3.12, 3.5, 4.0, 5.0, 6.0, 7.1, and 8.0. [3] [4]
MChess Pro has its own DOS GUI and as well as playing chess is able to analyse EPD (Extended Position Description) files. [5] The opening book for the software is written by Sandro Necchi. [6]
MChess Pro's style of play is designed to be particularly human, and, more specifically, particularly positional. [7] MChess Pro uses 'complex pattern recognition', has an evaluation function designed to focus on positional factors, and uses aggressive variation pruning in its searches. [1]
MChess Pro was one of the strongest chess programs of the 1990s. [1] MChess Pro finished 8th and was the highest placed computer in the 1991 AEGON Man-Machine tournament. [8] In the 10th AEGON event at the Hague in 1995, MChess Pro defeated three grandmasters [9] and achieved a performance rating of 2652 Elo. [10] MChess Pro has defeated a number of very strong players including Christiansen, Z. Polgar, Rohde, Shabalov, Cifuentes and Wolff. [10] By the end of the 1990s MChess Pro was slipping further down the SSDF (Swedish Chess Computer Association) rating lists and by 2001 was already outside the top 30 programs. [11]
This game from 1995 sees MChess Pro defeating one of the strongest female players of the 20th Century - Grandmaster Zsuzsa Polgar. Black suffers damage to her pawn structure early on and in the endgame allows an exchange of dark-squared bishops which leaves her king placed too passively. MChess Pro handles this endgame fairly well.
White: MChess Pro
Black: Zsuzsa Polgar
1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.Nc3 Bg7 6.Be3 Nf6 7.Bc4 O-O 8.Bb3 a5 9.f3 d5 10.Bxd5 Nxd5 11.Nxd5 f5 12.Nxc6 bxc6 13.Nb6 Rb8 14.Qxd8 Rxd8 15.Rd1 Rxd1+ 16.Kxd1 fxe4 17.Nxc8 Rxc8 18.b3 exf3 19.gxf3 a4 20.Re1 Ra8 21.Re2 Kf7 22.Bc5 e6 23.Rd2 Ke8 24.Ke2 Be5 25.Ke3 g5 26.Ke4 Bf4 27.Rg2 Kf7 28.h4 h6 29.Bb4 Rb8 30.Bc3 Ra8 31.Bd4 Ra5 32.hxg5 hxg5 33.Bc3 Ra8 34.Be5 axb3 35.cxb3 Bxe5 36.Kxe5 Ke7 37.a4 Rb8 38.Rxg5 Rxb3 39.Rg7+ Kd8 40.f4 Rb4 41.a5 Ra4 42.Kxe6 Re4+ 43.Kd6 Rd4+ 44.Kxc6 Rxf4 45.a6 Rc4+ 46.Kb5 Rc7 47.Rg8+ Kd7 48.a7 1-0 [12]
The World Chess Championship 1972 was a match for the World Chess Championship between challenger Bobby Fischer of the United States and defending champion Boris Spassky of the Soviet Union. The match took place in the Laugardalshöll arena in Reykjavík, Iceland, and has been dubbed the Match of the Century. Fischer became the first American born in the United States to win the world title, and the second American overall. Fischer's win also ended, for a short time, 24 years of Soviet domination of the World Championship.
Konstantin Aseev was a Russian chess Grandmaster and trainer.
Anderssen's Opening is a chess opening defined by the opening move:
Nolot is a chess test suite with 11 very difficult positions from real games. They were compiled by Pierre Nolot for the French chess magazine Gambisco and posted on the rec.games.chess Usenet group in 1994. Some of these positions were particularly hard to solve for chess engines at the time.
The World Chess Championship 2006 was a match between Classical World Chess Champion Vladimir Kramnik, and FIDE World Chess Champion Veselin Topalov. The title of World Chess Champion had been split for 13 years. This match, played between September 23 and October 13, 2006, in Elista, Kalmykia, Russia, was to reunite the two World Chess Champion titles and produce an undisputed World Champion.
The English Defence is a chess opening characterised by the moves:
Deep Blue versus Garry Kasparov was a pair of six-game chess matches between then-world chess champion Garry Kasparov and an IBM supercomputer called Deep Blue. The first match was played in Philadelphia in 1996 and won by Kasparov by 4–2. A rematch was played in New York City in 1997 and won by Deep Blue by 3½–2½. The second match was the first defeat of a reigning world chess champion by a computer under tournament conditions, and was the subject of a documentary film, Game Over: Kasparov and the Machine.
The World Chess Championship 1886 was the first official World Chess Championship match contested by Wilhelm Steinitz and Johannes Zukertort. The match took place in the United States, the first five games being played in New York City, the next four being played in St. Louis and the final eleven in New Orleans. The winner was the first player to achieve ten wins. Wilhelm Steinitz won the match 10–5, winning his tenth game in the twentieth game of the match.
The World Chess Championship 1889 was the second official World Chess Championship, and was between Wilhelm Steinitz and Mikhail Chigorin. It took place in Havana, Cuba. Steinitz successfully defended his world title, by being the first of the two players to reach 10½. He won the match 10½-6½.
The third World Chess Championship was held in New York City in late 1890 and early 1891. Holder Wilhelm Steinitz narrowly defeated his Hungarian challenger, Isidor Gunsberg.
The World Chess Championship 2012 was a chess match between the defending World Champion Viswanathan Anand of India and Boris Gelfand of Israel, winner of the 2011 Candidates Tournament. After sixteen games, including four rapid games, Anand retained his title. The match, held under the auspices of the World Chess Federation FIDE, took place between 10 and 30 May 2012 in the Engineering Building of the State Tretyakov Gallery, Moscow, Russia. The prize fund was US$2.55 million.
The 1935 World Chess Championship was played between challenger Max Euwe and title-holder Alexander Alekhine. It was played in various cities and towns in the Netherlands from October 3 to December 16. Euwe was the winner by overcoming a three-point deficit as late as the ninth game.
The 1978 World Chess Championship was played between Anatoly Karpov and Viktor Korchnoi in Baguio, Philippines from July 18 to October 18, 1978. Karpov won, thereby retaining the title.
Igor Khenkin is a German chess player. He achieved the FIDE title of grandmaster in 1992, and his peak rating is 2670. Igor Khenkin has been one of the top 100 FIDE players for eight out of the past nine years. He participated in the FIDE World Chess Championship 2002, but was knocked out in the second round by Rustam Kasimdzhanov. In July 2006, he won the Andorra Open chess tournament with 7/9 points.
ChessGenius is the name of a chess-playing computer program written by Richard Lang who has in the past written programs that have won the World Computer Chess Championship on 10 occasions.
The Women's World Chess Championship 2016 was a chess match played between Mariya Muzychuk, the defending champion, and the challenger Hou Yifan to determine the FIDE Women's World Champion. The scheduled 10-game match was held from 1 to 14 March 2016 in Lviv, Ukraine. It was originally scheduled from 11 to 31 October 2015, but was delayed because no host could be found.
The 1992 match between former world chess champions Bobby Fischer and Boris Spassky was billed as a World Chess Championship, but was unofficial. It was a rematch of the 1972 World Championship match. Fischer won 10–5, with 15 draws.
The World Chess Championship 2016 was a chess match between the reigning world champion Magnus Carlsen and the challenger Sergey Karjakin to determine the World Chess Champion. Carlsen had been world champion since 2013, while Karjakin qualified as challenger by winning the 2016 Candidates Tournament. The best-of-12 match, organized by FIDE and its commercial partner Agon, was played in New York City between 10 and 30 November 2016.
The World Chess Championship 2018 was a match between the reigning world champion since 2013, Magnus Carlsen, and the challenger Fabiano Caruana to determine the World Chess Champion. The 12-game match, organised by FIDE and its commercial partner Agon, was played at The College in Holborn, London, between 9 and 28 November 2018. The games were broadcast on worldchess.com and by NRK.
The 17th season of the Top Chess Engine Championship began on 2 January 2020 and ended on 22 April 2020. TCEC Season 16 3rd-place finisher Leela Chess Zero won the championship, defeating the defending champion Stockfish 52.5-47.5 in the superfinal.
