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The '''SSDF''' - '''S'''venska '''s'''chack'''d'''ator'''f'''öreningen, 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. The forerunner of the SSDF was founded in [[Timeline#1979|1979]] by [[Johan Enroth]] in conjunction with the publication of the [[PLY (Magazine)|PLY Magazine]] <ref>[http://privat.bahnhof.se/wb432434/historik.htm PLY/SSDF – the story]</ref>. Enroth served as first president and was also Vice-President of the [[ICCA]] in the 80s. Initiated by [[Göran Grottling]] <ref>[http://privat.bahnhof.se/wb432434/historik.htm#1997 PLY/SSDF – the story - 1997]</ref>, the SSDF was founded with the purpose to coordinate the interest for computerchess and chesscomputers in Sweden, and to release PLY. [[Thoralf Karlsson]] became chairman until 2013 when he was superseded by [[Lars Sandin]]. In 1998, the PLY Magazine was ceased.

=Ratings=

* [https://en.wikipedia.org/wiki/Swedish_Chess_Computer_Association#Rating_list_year-end_leaders Leaders year by year from Wikipedia]

==1994 ...==

* [https://groups.google.com/d/msg/rec.games.chess/CebfSwOrvYo/nY9uE9HzCRAJ SSDF Computer Rating List 4/94] by [[Mads Brevik]], [[Computer Chess Forums|rgc]], June 08, 1994

* [https://groups.google.com/d/msg/rec.games.chess/NuFo6p4CdTY/LPUJwgSmzRoJ SSDF COMPUTER RATING LIST 7/94] by [[Mads Brevik]], [[Computer Chess Forums|rgc]], October 31, 1994

* [http://groups.google.com/group/rec.games.chess.computer/browse_frm/thread/c646762dcd3b61e The SSDF Rating List 6/95] by [[Göran Grottling]], [[Computer Chess Forums|rgcc]], September 08, 1995

* [http://groups.google.com/group/rec.games.chess.computer/browse_frm/thread/968602dbc6420783 The Swedish Ratinglist 1/96 (1/2)] by [[Göran Grottling]], [[Computer Chess Forums|rgcc]], January 07, 1996

* [http://groups.google.com/group/rec.games.chess.computer/browse_frm/thread/1f123a6f228d5066 The Swedish Ratinglist - Long version!] by [[Göran Grottling]], [[Computer Chess Forums|rgcc]], January 07, 1996

* [http://en.chessbase.com/post/fritz-comes-second-just-behind-deep-fritz SSDF Rating List 2003-01-16], [[ChessBase]], January 17, 2003

* [http://www.chessbase.com/newsdetail.asp?newsid=796 SSDF Rating List 2003-02-13], [[ChessBase]], February 13, 2003

==2005 ...==

* [https://www.stmintz.com/ccc/index.php?id=485608 SSDF Rating List 2006-02-10] by [[Thoralf Karlsson]], [[CCC]], February 10, 2006

* [http://www.talkchess.com/forum/viewtopic.php?t=13289 SSDF Rating List 2007-04-21] by [[Thoralf Karlsson]], [[CCC]], April 21, 2007

* [http://www.talkchess.com/forum/viewtopic.php?t=17569 SSDF Rating List 2007-11-03] by [[Thoralf Karlsson]], [[CCC]], November 03, 2007

* [http://www.talkchess.com/forum/viewtopic.php?t=63191 THE SSDF RATING LIST 2017-02-15] by [[Lars Sandin]], [[CCC]], February 15, 2017

* [http://www.talkchess.com/forum/viewtopic.php?t=64742 THE SSDF RATING LIST 2017-07-27] by [[Lars Sandin]], [[CCC]], July 27, 2017

=Forum Posts=

=References=

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