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.

Source: Wikipedia — Swedish Chess Computer Association (CC BY-SA 4.0)