Swedish Chess Computer Association
Encyclopedia
The Swedish Chess Computer Association is an organization that tests computer chess
software by playing chess programs against one another and producing a rating list. On September 26, 2008, the list was released with Deep Rybka 3 leading with an estimated Elo rating of 3238. Rybka's listing in June 2006 was the first time a program on the list has passed the 2900 mark. In the year 2000 the ratings of the chess engines in the SSDF rating pool were calibrated with games played against humans.
The SSDF list is one of the only statistically significant measures of chess engine strength, especially compared to tournaments, because it incorporates the results of thousands of games played on standard hardware at tournament time controls. The list reports not only absolute rating, but also error bar
s, winning percentages, and recorded moves of played games.
The SSDF's current testing platform is an Intel Core 2 Quad 6600 2.4 GHz with 2 GB of RAM-memory and a 64-bit operating system.
Computer chess
Computer chess is computer architecture encompassing hardware and software capable of playing chess autonomously without human guidance. Computer chess acts as solo entertainment , as aids to chess analysis, for computer chess competitions, and as research to provide insights into human...
software by playing chess programs against one another and producing a rating list. On September 26, 2008, the list was released with Deep Rybka 3 leading with an estimated Elo rating of 3238. Rybka's listing in June 2006 was the first time a program on the list has passed the 2900 mark. In the year 2000 the ratings of the chess engines in the SSDF rating pool were calibrated with games played against humans.
The SSDF list is one of the only statistically significant measures of chess engine strength, especially compared to tournaments, because it incorporates the results of thousands of games played on standard hardware at tournament time controls. The list reports not only absolute rating, but also error bar
Error bar
Error bars are a graphical representation of the variability of data and are used on graphs to indicate the error, or uncertainty in a reported measurement. They give a general idea of how accurate a measurement is, or conversely, how far from the reported value the true value might be...
s, winning percentages, and recorded moves of played games.
The SSDF's current testing platform is an Intel Core 2 Quad 6600 2.4 GHz with 2 GB of RAM-memory and a 64-bit operating system.
Rating list year-end leaders
- 1984: Novag Super Constellation 6502MOS Technology 6502The MOS Technology 6502 is an 8-bit microprocessor that was designed by Chuck Peddle and Bill Mensch for MOS Technology in 1975. When it was introduced, it was the least expensive full-featured microprocessor on the market by a considerable margin, costing less than one-sixth the price of...
4 MHz (1631) - 1985: MephistoMephisto (chess computer)Mephisto was a line of chess computers sold by Hegener & Glaser '. In addition to integrated travel and sensory computers, they also sold a line of modular electronic autosensory boards which could accept different program, processor, and display modules.Its strongest software was written by...
Amsterdam 68000Motorola 68000The Motorola 68000 is a 16/32-bit CISC microprocessor core designed and marketed by Freescale Semiconductor...
12 MHz (1827) - 1986: MephistoMephisto (chess computer)Mephisto was a line of chess computers sold by Hegener & Glaser '. In addition to integrated travel and sensory computers, they also sold a line of modular electronic autosensory boards which could accept different program, processor, and display modules.Its strongest software was written by...
Amsterdam 68000 12 MHz (1827) - 1987: MephistoMephisto (chess computer)Mephisto was a line of chess computers sold by Hegener & Glaser '. In addition to integrated travel and sensory computers, they also sold a line of modular electronic autosensory boards which could accept different program, processor, and display modules.Its strongest software was written by...
Dallas 68020 14 MHz (1923) - 1988: MephistoMephisto (chess computer)Mephisto was a line of chess computers sold by Hegener & Glaser '. In addition to integrated travel and sensory computers, they also sold a line of modular electronic autosensory boards which could accept different program, processor, and display modules.Its strongest software was written by...
MM 4 Turbo Kit 6502 16 MHz (1993) - 1989: MephistoMephisto (chess computer)Mephisto was a line of chess computers sold by Hegener & Glaser '. In addition to integrated travel and sensory computers, they also sold a line of modular electronic autosensory boards which could accept different program, processor, and display modules.Its strongest software was written by...
Portorose 68020Motorola 68020The Motorola 68020 is a 32-bit microprocessor from Motorola, released in 1984. It is the successor to the Motorola 68010 and is succeeded by the Motorola 68030...
12 MHz (2027) - 1990: MephistoMephisto (chess computer)Mephisto was a line of chess computers sold by Hegener & Glaser '. In addition to integrated travel and sensory computers, they also sold a line of modular electronic autosensory boards which could accept different program, processor, and display modules.Its strongest software was written by...
Portorose 68030Motorola 68030The Motorola 68030 is a 32-bit microprocessor in Motorola's 68000 family. It was released in 1987. The 68030 was the successor to the Motorola 68020, and was followed by the Motorola 68040. In keeping with general Motorola naming, this CPU is often referred to as the 030 .The 68030 features on-chip...
36 MHz (2138) - 1991: MephistoMephisto (chess computer)Mephisto was a line of chess computers sold by Hegener & Glaser '. In addition to integrated travel and sensory computers, they also sold a line of modular electronic autosensory boards which could accept different program, processor, and display modules.Its strongest software was written by...
Vancouver 68030 36 MHz (2127) - 1992: Chess Machine 30 MHz Schröder 3.0 (2174)
- 1993: Mephisto GeniusChessGeniusChessGenius is the name given to a chess playing computer program written by Richard Lang who has in the past written programs that have won the Computer World Chess Championship on 10 occasions.-History:...
2.0 486486Year 486 was a common year starting on Wednesday of the Julian calendar. At the time, it was known as the Year of the Consulship of Basilius and Longinus...
/50-66 MHz (2235) - 1995: MChess ProMChess ProMChess Pro is the name given to a chess playing computer program written by Martin Hirsch which won the World Microcomputer Chess Championship in 1995.- History :...
5.0 Pentium 90 MHz (2306) - 1996: RebelREBEL (chess)REBEL was a world champion chess program developed by Ed Schröder. Development of REBEL started in 1980 on a TRS-80, and it was ported many times to dedicated hardware and the fastest microprocessors of the day:...
8.0 Pentium 90 MHz (2337) - 1997: HIARCSHIARCSHIARCS is a commercial computer chess program developed by Mark Uniacke. Its name is an acronym stands for higher intelligence auto response chess system.-Overview:...
6.0 49MBMegabyteThe megabyte is a multiple of the unit byte for digital information storage or transmission with two different values depending on context: bytes generally for computer memory; and one million bytes generally for computer storage. The IEEE Standards Board has decided that "Mega will mean 1 000...
P200 MMX (2418) - 1998: FritzFritz (chess)Fritz is a German chess program developed by Frans Morsch and Mathias Feist and published by ChessBase. There is also a version called Deep Fritz that is designed for multiprocessing....
5.0 PB29% 67MB P200 MMX (2460) - 1999: Chess TigerChess TigerChess Tiger is a strong chess program developed by Christophe Théron.A shareware version of Chess Tiger was also made for the Palm OS. It is known for its high level of strength and a trainer engine to help beginners improve their chess techniques....
12.0 DOS 128MB K6-2 450 MHz (2594) - 2000: FritzFritz (chess)Fritz is a German chess program developed by Frans Morsch and Mathias Feist and published by ChessBase. There is also a version called Deep Fritz that is designed for multiprocessing....
6.0 128MB K6-2 450 MHz (2607) - 2001: Chess TigerChess TigerChess Tiger is a strong chess program developed by Christophe Théron.A shareware version of Chess Tiger was also made for the Palm OS. It is known for its high level of strength and a trainer engine to help beginners improve their chess techniques....
14.0 CB 256MB Athlon 1200 (2709) - 2002: Deep FritzFritz (chess)Fritz is a German chess program developed by Frans Morsch and Mathias Feist and published by ChessBase. There is also a version called Deep Fritz that is designed for multiprocessing....
7.0 256MB AthlonAthlonAthlon is the brand name applied to a series of x86-compatible microprocessors designed and manufactured by Advanced Micro Devices . The original Athlon was the first seventh-generation x86 processor and, in a first, retained the initial performance lead it had over Intel's competing processors...
1200 MHz (2759) - 2003: ShredderShredder (chess)Shredder is a commercial chess program developed in Germany by Stefan Meyer-Kahlen in 1993. Shredder won the World Microcomputer Chess Championship in 1996 and 2000, the World Computer Chess Championship in 1999 and 2003, the World Computer Speed Chess Championship in 2002, 2003, 2004, 2005, and...
7.04 UCI 256MB Athlon 1200 MHz (2791) - 2004: ShredderShredder (chess)Shredder is a commercial chess program developed in Germany by Stefan Meyer-Kahlen in 1993. Shredder won the World Microcomputer Chess Championship in 1996 and 2000, the World Computer Chess Championship in 1999 and 2003, the World Computer Speed Chess Championship in 2002, 2003, 2004, 2005, and...
8.0 CB 256MB Athlon 1200 MHz (2800) - 2005: ShredderShredder (chess)Shredder is a commercial chess program developed in Germany by Stefan Meyer-Kahlen in 1993. Shredder won the World Microcomputer Chess Championship in 1996 and 2000, the World Computer Chess Championship in 1999 and 2003, the World Computer Speed Chess Championship in 2002, 2003, 2004, 2005, and...
9.0 UCI 256MB Athlon 1200 MHz (2808) - 2006: RybkaRybkaRybka is a computer chess engine designed by International Master Vasik Rajlich. , Rybka is one of the top-rated engines on chess engine rating lists and has won many computer chess tournaments...
1.2 256MB Athlon 1200 MHz (2902) - 2007: RybkaRybkaRybka is a computer chess engine designed by International Master Vasik Rajlich. , Rybka is one of the top-rated engines on chess engine rating lists and has won many computer chess tournaments...
2.3.1 Arena 256MBMegabyteThe megabyte is a multiple of the unit byte for digital information storage or transmission with two different values depending on context: bytes generally for computer memory; and one million bytes generally for computer storage. The IEEE Standards Board has decided that "Mega will mean 1 000...
Athlon 1200 MHz (2935) - 2008: Deep RybkaRybkaRybka is a computer chess engine designed by International Master Vasik Rajlich. , Rybka is one of the top-rated engines on chess engine rating lists and has won many computer chess tournaments...
3 2GBGigabyteThe gigabyte is a multiple of the unit byte for digital information storage. The prefix giga means 109 in the International System of Units , therefore 1 gigabyte is...
Q6600 2.4 GHzGHZGHZ or GHz may refer to:# Gigahertz .# Greenberger-Horne-Zeilinger state — a quantum entanglement of three particles.# Galactic Habitable Zone — the region of a galaxy that is favorable to the formation of life....
(3238) - 2009: Deep RybkaRybkaRybka is a computer chess engine designed by International Master Vasik Rajlich. , Rybka is one of the top-rated engines on chess engine rating lists and has won many computer chess tournaments...
3 2GBGigabyteThe gigabyte is a multiple of the unit byte for digital information storage. The prefix giga means 109 in the International System of Units , therefore 1 gigabyte is...
Q6600 2.4 GHzGHZGHZ or GHz may refer to:# Gigahertz .# Greenberger-Horne-Zeilinger state — a quantum entanglement of three particles.# Galactic Habitable Zone — the region of a galaxy that is favorable to the formation of life....
(3232) - 2010: Deep RybkaRybkaRybka is a computer chess engine designed by International Master Vasik Rajlich. , Rybka is one of the top-rated engines on chess engine rating lists and has won many computer chess tournaments...
3 2GBGigabyteThe gigabyte is a multiple of the unit byte for digital information storage. The prefix giga means 109 in the International System of Units , therefore 1 gigabyte is...
Q6600 2.4 GHzGHZGHZ or GHz may refer to:# Gigahertz .# Greenberger-Horne-Zeilinger state — a quantum entanglement of three particles.# Galactic Habitable Zone — the region of a galaxy that is favorable to the formation of life....
(3227) - 2011 : Deep RybkaRybkaRybka is a computer chess engine designed by International Master Vasik Rajlich. , Rybka is one of the top-rated engines on chess engine rating lists and has won many computer chess tournaments...
4 2GBGigabyteThe gigabyte is a multiple of the unit byte for digital information storage. The prefix giga means 109 in the International System of Units , therefore 1 gigabyte is...
Q6600 2.4 GHzGHZGHZ or GHz may refer to:# Gigahertz .# Greenberger-Horne-Zeilinger state — a quantum entanglement of three particles.# Galactic Habitable Zone — the region of a galaxy that is favorable to the formation of life....
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