Swedish Chess Computer Association

The Swedish Chess Computer Association (Swedish: Svenska schackdatorföreningen, SSDF) 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.[1]

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 bars, winning percentages, and recorded moves of played games.

The SSDF's current testing platform includes an AMD Ryzen 7 1800X 8-Core 3.6 GHz with 16 GB of RAM-memory and a 64-bit operating system. On this platform they have chosen to add the 6 piece Syzygy endgame database, installed on SSD, for the programs that are able to use it. From 1984 to 2020, the SSDF top program increased by 1942 points, an average of 54 points per year.

Rating list year-end leaders

Rating list year-end leaders
YearProgramHardwareRating
1984Novag Super Constellation6502 4 MHz1631
1985Mephisto Amsterdam68000 12 MHz1827
1986Mephisto Amsterdam68000 12 MHz1827
1987Mephisto Dallas68020 14 MHz1923
1988Mephisto MM 4 Turbo Kit6502 16 MHz1993
1989Mephisto Portorose68020 12 MHz2027
1990Mephisto Portorose68030 36 MHz2138
1991Mephisto Vancouver68030 36 MHz2127
1992Chess Machine Schröder 3.0ARM2 30 MHz2174
1993Mephisto Genius 2.0486/50-66 MHz2235
1995MChess Pro 5.0Pentium 90 MHz2306
1996Rebel 8.0Pentium 90 MHz2337
1997HIARCS 6.049MB P200 MMX2418
1998Fritz 5.0 PB29%67MB P200 MMX2460
1999Chess Tiger 12.0 DOS128MB K6-2 450 MHz2594
2000Fritz 6.0128MB K6-2 450 MHz2607
2001Chess Tiger 14.0 CB256MB Athlon 12002709
2002Deep Fritz 7.0256MB Athlon 1200 MHz2759
2003Shredder 7.04 UCI256MB Athlon 1200 MHz2791
2004Shredder 8.0 CB256MB Athlon 1200 MHz2800
2005Shredder 9.0 UCI256MB Athlon 1200 MHz2808
2006Rybka 1.2256MB Athlon 1200 MHz2902
2007Rybka 2.3.1 Arena256MB Athlon 1200 MHz2935
2008Deep Rybka 32GB Q6600 2.4 GHz3238
2009Deep Rybka 32GB Q6600 2.4 GHz3232
2010Deep Rybka 32GB Q6600 2.4 GHz3227
2011Deep Rybka 42GB Q6600 2.4 GHz3216
2012Deep Rybka 4 x642GB Q6600 2.4 GHz3221
2013Komodo 5.1 MP x642GB Q6600 2.4 GHz3241
2014Komodo 7.0 MP x642GB Q6600 2.4 GHz3295
2015Stockfish 6 MP x642GB Q6600 2.4 GHz3334
2016Komodo 9.1 MP x642GB Q6600 2.4 GHz3366
2017Komodo 11.01 MP x6416GB 1800X 3.6 GHz3406
2018Stockfish 9 MP x6416GB 1800X 3.6 GHz3502
2019Stockfish 10 MP x6416GB 1800X 3.6 GHz3529
2020Stockfish 12 NNUE MP x6416GB 1800X 3.6 GHz3573

See also

Notes

References


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