CCRL
From Infogalactic: the planetary knowledge core
For the oil refinery see CCRL Refinery Complex.
CCRL (Computer Chess Rating Lists) is an organisation that tests computer chess engines' strength by playing the engines against each other.
CCRL was founded in 2006 by Graham Banks, Ray Banks, Sarah Bird, Kirill Kryukov and Charles Smith. As of January 2017, testers who actively pit engine against engine are Graham Banks, Ray Banks (who only participates in Chess960, or Fischer Random Chess), Charles Smith, Sergio Martinez, Gabor Szots and Nathanael Russell.
The organisation runs three different lists:
- 40/40 (40 minutes for every 40 moves played)[1]
- 40/4 (4 minutes for every 40 moves played)
- 40/4 FRC (same time control but Chess960).
Testing conditions
The following configuration is used:
- Pondering (or permanent brain) is switched off.
- Timing control on the computer being used for the test is adjusted by using Crafty 19.17 BH as a benchmark on the test computer as well as an AMD Athlon 64 X2 4600+ CPU (2.4 GHz).
- Generic, neutral opening books are used (as opposed to the engine's own book) up to a limit of 12 moves into the game alongside 4 or 5 man tablebases.[2][3]
See also
References
- ↑ The first number refers to the number of moves which must be made by each engine, the second number refers to the number of minutes allocated to make all of these moves. The repeating time control means that the time is reset after each multiple of this number of moves is reached. For example, in a 40/4 time control, each engine would have 4 minutes to make 40 moves, then a new 4 minutes would be allocated for the next 40 moves and so on, until the game was complete.
- ↑ CCRL Discussion Board, http://kirill-kryukov.com/chess/discussion-board/viewtopic.php?f=7&t=2808, 19 June 2012
- ↑ Adam's Computer Chess Pages, http://adamsccpages.blogspot.co.uk/2012/05/ccrl.html, 19 June 2012
