CCRL 40/4
Downloads and Statistics
August 19, 2019
Testing summary:
Total: 2'086'250 games
played by 2'425 programs
28072 CPU days (X2 4600+)

White wins: 810'164 (38.8%)
Black wins: 655'242 (31.4%)
Draws: 620'844 (29.8%)
White score: 53.7%

Custom engine selection

Comparing 9 engines!
9 selected engines played 50 games with each other



CCRL 40/4 Rating List - Custom engine selection
2086250 games played by 2425 programs, run by 22 testers
Ponder off, General books (up to 12 moves), 3-4-5 piece EGTB
Time control: Equivalent to 40 moves in 4 minutes on Athlon 64 X2 4600+ (2.4 GHz), about 1.5 minutes on a modern Intel CPU.
Computed on August 19, 2019 with Bayeselo based on 2'086'250 games
Tested by CCRL team, 2005-2019, http://computerchess.org.uk/ccrl/404/

Rank               Engine                Elo   +    -   Score  AvOp  Games
Bobcat 8.0 64-bit 4CPU             3056  +15  -15  47.5%  +13.9  1340
  Bobcat 7.6 64-bit 4CPU             3035  +19  -20  43.7%  +39.9   820
  Bobcat 8.0 64-bit                  2958  +10  -10  47.7%  +12.9  3420
  Bobcat 7.6 64-bit                  2911  +14  -14  49.0%   +5.9  1616
  Bobcat 7.1 64-bit                  2853  +17  -17  51.5%  -13.5  1171
  Bobcat 3.25 64-bit                 2712  +10  -10  49.6%   +2.6  3577
  Bobcat 2.75 64-bit                 2675  +14  -13  55.7%  -41.9  1965
  Bobcat 20110414 64-bit             2584  +30  -29  62.2%  -92.4   418
  Bobcat 20110220 64-bit             2574  +26  -26  58.5%  -62.1   509

Created in 2005-2013 by CCRL team
Last games added on August 19, 2019