Swedish Chess Computer Association: Difference between revisions

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{{More footnotes|date=April 2009}}

The '''Swedish Chess Computer Association''' ({{lang-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>

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The SSDF's current testing platform includes an AMD Ryzen 7 1800X 8-Core 3.6&nbsp;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==

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

{| class="wikitable"

|+ Rating list the best program at the year-end of the yearleaders

|-

!RokYear!!Program!!Hardware!!Rating

|-

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

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{{Graph:Chart

| width = 500 | height = 300

| xAxisTitle = RokYear

| 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