CCRL 40/40
Downloads and Statistics
December 10, 2019
Testing summary:
Total: 1'104'091 games
played by 2'573 programs
150964 CPU days (X2 4600+)

White wins: 382'628 (34.7%)
Black wins: 284'145 (25.7%)
Draws: 437'318 (39.6%)
White score: 54.5%

Custom engine selection

Comparing 8 engines!
8 selected engines played 0 games with each other



CCRL 40/40 Rating List - Custom engine selection
1104091 games played by 2573 programs, run by 23 testers
Ponder off, General books (up to 12 moves), 3-4-5 piece EGTB
Time control: Equivalent to 40 moves in 40 minutes on Athlon 64 X2 4600+ (2.4 GHz), about 15 minutes on a modern CPU.
Computed on December 10, 2019 with Bayeselo based on 1'104'091 games
Tested by CCRL team, 2005-2019, http://ccrl.chessdom.com/ccrl/4040/

Rank               Engine                Elo   +    -   Score  AvOp  Games
Colossus 2008b                     2643  +13  -13  49.1%   +4.2  2158
  Colossus 2007d                     2613  +23  -23  50.7%   -5.9   635
  Colossus 2007c                     2600  +32  -32  51.4%  -11.9   314
  Colossus 2007a                     2581  +32  -32  48.9%   +4.5   318
  Colossus 2006f                     2555  +23  -23  47.6%  +16.1   658
  Colossus 2008a                     2543  +29  -29  47.2%  +17.5   374
  Colossus 2006d                     2517  +31  -31  49.8%   +1.4   320
  Colossus 2007b                     2514  +34  -34  50.5%   -5.1   307

Created in 2005-2013 by CCRL team
Last games added on December 10, 2019