Swedish Chess Computer Association: Difference between revisions

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{{More footnotes|date=April 2009}}

The '''Swedish Chess Computer Association''' ({{lang-sv|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 (chess)|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.<ref>{{cite web | url=http://home.interact.se/~w100107/level.htm | title=Tournament Performance Rating Against Humans | author=Tony Hedlund | accessdate=}}</ref>

The '''Swedish Chess Computer Association''' ({{langx|sv|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 (chess)|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.<ref>{{cite web | url=

http://privat.bahnhof.se/wb432434/level.htm | title=Human calibrating list results | author=Tony Hedlund | accessdate=}}</ref>

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 isincludes an IntelAMD CoreRyzen 27 Quad1800X 66008-Core 23.46&nbsp;GHz with 216 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==

[[Image:link=http://arimaa.com/arimaa/images/yearRating.png|right}thumb|Year vs Rating]]

* 1984: Novag Super Constellation [[MOS Technology 6502|6502]] 4 [[MHz]] (1631)

* 1985: [[Mephisto (chess computer)|Mephisto]] Amsterdam [[Motorola 68000|68000]] 12 MHz (1827)

* 1986: [[Mephisto (chess computer)|Mephisto]] Amsterdam 68000 12 MHz (1827)

* 1987: [[Mephisto (chess computer)|Mephisto]] Dallas 68020 14 MHz (1923)

* 1988: [[Mephisto (chess computer)|Mephisto]] MM 4 Turbo Kit 6502 16 MHz (1993)

* 1989: [[Mephisto (chess computer)|Mephisto]] Portorose [[Motorola 68020|68020]] 12 MHz (2027)

* 1990: [[Mephisto (chess computer)|Mephisto]] Portorose [[Motorola 68030|68030]] 36 MHz (2138)

* 1991: [[Mephisto (chess computer)|Mephisto]] Vancouver 68030 36 MHz (2127)

* 1992: [[Chess Machine]] 30 MHz Schröder 3.0 (2174)

* 1993: [[ChessGenius|Mephisto Genius]] 2.0 [[486]]/50-66 MHz (2235)

* 1995: [[MChess Pro]] 5.0 [[Intel P5 (microarchitecture)|Pentium]] 90 MHz (2306)

* 1996: [[REBEL (chess)|Rebel]] 8.0 Pentium 90 MHz (2337)

* 1997: [[HIARCS]] 6.0 49[[Megabyte|MB]] P200 MMX (2418)

* 1998: [[Fritz (chess)|Fritz]] 5.0 PB29% 67MB P200 MMX (2460)

* 1999: [[Chess Tiger]] 12.0 DOS 128MB K6-2 450 MHz (2594)

* 2000: [[Fritz (chess)|Fritz]] 6.0 128MB K6-2 450 MHz (2607)

* 2001: [[Chess Tiger]] 14.0 CB 256MB Athlon 1200 (2709)

* 2002: [[Fritz (chess)|Deep Fritz]] 7.0 256MB [[Athlon]] 1200 MHz (2759)

* 2003: [[Shredder (chess)|Shredder]] 7.04 UCI 256MB Athlon 1200 MHz (2791)

* 2004: [[Shredder (chess)|Shredder]] 8.0 CB 256MB Athlon 1200 MHz (2800)

* 2005: [[Shredder (chess)|Shredder]] 9.0 UCI 256MB Athlon 1200 MHz (2808) <!-- Is this correct? -->

* 2006: [[Rybka]] 1.2 256MB Athlon 1200 MHz (2902)

* 2007: [[Rybka]] 2.3.1 Arena 256[[Megabyte|MB]] Athlon 1200 [[MHz]] (2935)

* 2008: Deep [[Rybka]] 3 2[[Gigabyte|GB]] [[Q6600]] 2.4 [[GHz]] (3238)

* 2009: Deep [[Rybka]] 3 2[[Gigabyte|GB]] [[Q6600]] 2.4 [[GHz]] (3232)

* 2010: Deep [[Rybka]] 3 2[[Gigabyte|GB]] [[Q6600]] 2.4 [[GHz]] (3227)

{{Div flex row| align-items=center}}

==Notes==

{| class="wikitable"

{{Reflist}}

|+ Rating list year-end leaders

|-

!Year!!Program!!Hardware!!Rating

|-

|1984||Novag Super Constellation||[[MOS Technology 6502|6502]] 4 [[MHz]]||1631

|-

|1985||[[Mephisto (chess computer)|Mephisto]] Amsterdam||[[Motorola 68000|68000]] 12&nbsp;MHz||1827

|-

|1986||[[Mephisto (chess computer)|Mephisto]] Amsterdam||68000 12&nbsp;MHz||1827

|-

|1987||[[Mephisto (chess computer)|Mephisto]] Dallas||68020 14&nbsp;MHz||1923

|-

|1988||[[Mephisto (chess computer)|Mephisto]] MM 4 Turbo Kit||6502 16&nbsp;MHz||1993

|-

|1989||[[Mephisto (chess computer)|Mephisto]] Portorose||[[Motorola 68020|68020]] 12&nbsp;MHz||2027

|-

|1990||[[Mephisto (chess computer)|Mephisto]] Portorose||[[Motorola 68030|68030]] 36&nbsp;MHz||2138

|-

|1991||[[Mephisto (chess computer)|Mephisto]] Vancouver||68030 36&nbsp;MHz||2127

|-

|1992||[[Chess Machine]] Schröder 3.0||[[ARM architecture|ARM2]] 30&nbsp;MHz||2174

|-

|1993||[[ChessGenius|Mephisto Genius]] 2.0||[[Intel 80486|486]]/50-66&nbsp;MHz||2235

|-

|1995||[[MChess Pro]] 5.0||[[Intel P5 (microarchitecture)|Pentium]] 90&nbsp;MHz||2306

|-

|1996||[[REBEL (chess)|Rebel]] 8.0||Pentium 90&nbsp;MHz||2337

|-

|1997||[[HIARCS]] 6.0||49[[Megabyte|MB]] P200 MMX||2418

|-

|1998||[[Fritz (chess)|Fritz]] 5.0 PB29%||67MB P200 MMX||2460

|-

|1999||[[Chess Tiger]] 12.0 DOS||128MB K6-2 450&nbsp;MHz||2594

|-

|2000||[[Fritz (chess)|Fritz]] 6.0||128MB K6-2 450&nbsp;MHz||2607

|-

|2001||[[Chess Tiger]] 14.0 CB||256MB Athlon 1200||2709

|-

|2002||[[Fritz (chess)|Deep Fritz]] 7.0||256MB [[Athlon]] 1200&nbsp;MHz||2759

|-

|2003||[[Shredder (chess)|Shredder]] 7.04 UCI||256MB Athlon 1200&nbsp;MHz||2791

|-

|2004||[[Shredder (chess)|Shredder]] 8.0 CB||256MB Athlon 1200&nbsp;MHz||2800

|-

|2005||[[Shredder (chess)|Shredder]] 9.0 UCI||256MB Athlon 1200&nbsp;MHz||2808 <!-- Is this correct? -->

|-

|2006||[[Rybka]] 1.2||256MB Athlon 1200&nbsp;MHz||2902

|-

|2007||[[Rybka]] 2.3.1 Arena||256[[Megabyte|MB]] Athlon 1200 [[MHz]]||2935

|-

|2008||Deep [[Rybka]] 3||2[[Gigabyte|GB]] [[Q6600]] 2.4 [[GHz]]||3238

|-

|2009||Deep [[Rybka]] 3||2[[Gigabyte|GB]] [[Q6600]] 2.4 [[GHz]]||3232

|-

|2010||Deep [[Rybka]] 3||2[[Gigabyte|GB]] [[Q6600]] 2.4 [[GHz]]||3227

|-

|2011||Deep [[Rybka]] 4||2[[Gigabyte|GB]] [[Q6600]] 2.4 [[GHz]]||3216

|-

|2012||Deep [[Rybka]] 4 [[x64]]||2[[Gigabyte|GB]] [[Q6600]] 2.4 [[GHz]]||3221

|-

|2013||[[Komodo (chess)|Komodo]] 5.1 MP x64||2[[Gigabyte|GB]] [[Q6600]] 2.4 [[GHz]]||3241

|-

|2014||[[Komodo (chess)|Komodo]] 7.0 MP x64||2[[Gigabyte|GB]] [[Q6600]] 2.4 [[GHz]]||3295

|-

|2015||[[Stockfish (chess)|Stockfish]] 6 MP x64||2[[Gigabyte|GB]] [[Q6600]] 2.4 [[GHz]]||3334

|-

|2016||[[Komodo (chess)|Komodo]] 9.1 MP x64||2[[Gigabyte|GB]] [[Q6600]] 2.4 [[GHz]]||3366

|-

|2017||[[Komodo (chess)|Komodo]] 11.01 MP x64||16[[Gigabyte|GB]] [[Ryzen#Ryzen 1000|1800X]] 3.6 [[GHz]]||3406

|-

|2018||[[Stockfish (chess)|Stockfish]] 9 MP x64||16[[Gigabyte|GB]] [[Ryzen#Ryzen 1000|1800X]] 3.6 [[GHz]]||3502

|-

|2019||[[Stockfish (chess)|Stockfish]] 10 MP x64||16[[Gigabyte|GB]] [[Ryzen#Ryzen 1000|1800X]] 3.6 [[GHz]]||3529

|-

|2020||[[Stockfish (chess)|Stockfish]] 12 NNUE MP x64||16[[Gigabyte|GB]] [[Ryzen#Ryzen 1000|1800X]] 3.6 [[GHz]]||3573

|}

{{Graph:Chart

| width = 500 | height = 300

| xAxisTitle = Year

| xAxisAngle = -40

| x = 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020

| yAxisTitle = Rating

| y = 1631, 1827, 1827, 1923, 1993, 2027, 2138, 2127, 2174, 2235, 2306, 2337, 2418, 2460, 2594, 2607, 2709, 2759, 2791, 2800, 2808, 2902, 2935, 3238, 3232, 3227, 3216, 3221, 3241, 3295, 3334, 3366, 3406, 3502, 3529, 3573

| showSymbols = |yGrid=

}}

{{Div flex row end}}

==See also==

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*[[Chess Engines Grand Tournament]] (CEGT)

==Notes==

==References, external links==

{{Reflist}}

{{No footnotes|date=April 2009}}

==References==

* [http://ssdf.bosjo.net/ Swedish Chess Computer Association]

* [http://homeprivat.interactbahnhof.se/~w100107wb432434/historik.htm PLY/SSDF – the story]

* [http://arimaa.com/arimaa/images/yearRating.png Rating of Best PC Chess Program]

* [http://www.meca-web.es/museo.htm Chess Computer Museum (M.E.C.A Museo Español Computadoras Ajedrez)]

[[Category:OrganizationsSports organizations established in 1984]]

[[Category:Computer chess]]

[[Category:Chess organizations]]

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{{chessChess-org-stub}}

[[de:Schwedischer Schachcomputerverein]]

[[fr:SSDF]]

[[it:SSDF]]

[[nl:Swedish Chess Computer Association]]

[[ru:Swedish Chess Computer Association]]