CCRL 40/40
Downloads and Statistics
September 14, 2019
Testing summary:
Total: 1'083'337 games
played by 2'531 programs
147896 CPU days (X2 4600+)

White wins: 376'125 (34.7%)
Black wins: 279'699 (25.8%)
Draws: 427'513 (39.5%)
White score: 54.5%

Custom engine selection

Comparing 33 engines!
33 selected engines played 300 games with each other



CCRL 40/40 Rating List - Custom engine selection
1083337 games played by 2531 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 Intel CPU.
Computed on September 14, 2019 with Bayeselo based on 1'083'337 games
Tested by CCRL team, 2005-2019, http://computerchess.org.uk/ccrl/4040/

Rank              Engine                Elo   +    -   Score  AvOp  Games
GreKo 2018.08 64-bit              2720  +22  -22  48.7%   +9.7   708
  GreKo 2018.12 64-bit              2716  +26  -26  49.0%   +5.6   439
  GreKo 2018 64-bit                 2712  +13  -14  48.4%  +10.9  1930
  GreKo 2018.07 64-bit              2709  +16  -16  47.9%  +13.8  1377
  GreKo 2018.02 64-bit              2649  +24  -24  51.7%  -11.0   585
  GreKo 2018.01 64-bit              2645  +27  -27  51.2%  -10.2   454
  GreKo 2015-ML 64-bit              2611  +25  -25  49.2%   +3.8   501
  GreKo 2015 64-bit                 2609  +22  -22  51.2%  -10.6   680
  GreKo 12.8 64-bit                 2604  +30  -30  50.7%   -6.7   358
  GreKo 2016 64-bit                 2592  +21  -22  47.6%  +17.5   697
  GreKo 12.1 64-bit                 2588  +30  -30  52.2%  -17.1   366
  GreKo 12.9 64-bit                 2579  +29  -29  46.9%  +21.0   416
  GreKo 12.5 64-bit                 2569  +33  -33  50.7%   -6.5   305
  GreKo 13.1 64-bit                 2566  +30  -30  46.7%  +19.8   347
  GreKo 9.7 64-bit                  2545  +32  -32  48.9%   +5.0   307
  GreKo 12.0 64-bit                 2541  +25  -25  48.2%  +13.8   541
  GreKo 10.0 64-bit                 2517  +32  -32  51.1%   -6.2   306
  GreKo 10.3.1 64-bit               2516  +33  -33  50.3%   -3.0   304
  GreKo 10.2 64-bit                 2502  +31  -32  47.8%  +16.9   341
  GreKo 8.0 64-bit                  2490  +27  -27  50.6%   -3.8   464
  GreKo 9.2 32-bit                  2490  +33  -33  49.5%   +2.6   298
  GreKo 8.2 32-bit                  2487  +26  -26  49.1%   +5.7   506
  GreKo 8.1.1 64-bit                2482  +36  -36  48.1%  +12.0   240
  GreKo 7.2 64-bit                  2459  +30  -30  53.4%  -24.8   364
  GreKo 8.0 32-bit                  2449  +29  -29  50.6%   -3.3   411
  GreKo 7.2 32-bit                  2428  +33  -33  48.4%  +10.2   304
  GreKo 6.30                        2378  +33  -33  48.0%  +13.9   307
  GreKo 7.0                         2371  +28  -28  46.3%  +28.3   454
  GreKo 6.25                        2368  +33  -33  48.0%  +13.2   302
  GreKo 6.5                         2364  +26  -26  48.9%   +7.1   495
  GreKo 5.9                         2349  +24  -24  46.4%  +28.0   621
  GreKo 5.5                         2311  +33  -33  50.7%   -5.6   305
  GreKo 5.2.5                       2277  +35  -35  50.9%   -9.0   289

Created in 2005-2013 by CCRL team
Last games added on September 14, 2019