CCRL 40/40
Downloads and Statistics
July 11, 2019
Testing summary:
Total: 1'066'603 games
played by 2'494 programs
145750 CPU days (X2 4600+)

White wins: 370'641 (34.7%)
Black wins: 275'905 (25.9%)
Draws: 420'057 (39.4%)
White score: 54.4%

Custom engine selection

Comparing 21 engines!
21 selected engines played 101 games with each other



CCRL 40/40 Rating List - Custom engine selection
1066603 games played by 2494 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 40 minutes on Athlon 64 X2 4600+ (2.4 GHz), about 15 minutes on a modern Intel CPU.
Computed on July 11, 2019 with Bayeselo based on 1'066'603 games
Tested by CCRL team, 2005-2019, http://computerchess.org.uk/ccrl/4040/

Rank               Engine                Elo   +    -   Score  AvOp  Games
Rodent III 0.238 64-bit 4CPU       3069  +20  -20  47.2%  +14.8   742
  Rodent III 0.276 64-bit 4CPU       3056  +32  -32  52.9%  -14.2   272
  Rodent III 0.210 64-bit 4CPU       2996  +28  -28  45.1%  +33.2   402
  Rodent III 0.275 64-bit            2985  +15  -15  50.3%   -1.5  1450
  Rodent III 0.238 64-bit            2982  +14  -15  50.2%   -1.8  1445
  Rodent III 0.210 64-bit            2936  +19  -19  49.5%   +2.8   830
  Rodent II 0.9.64 64-bit            2916  +22  -22  50.5%   -3.7   659
  Rodent III 0.172 64-bit            2909  +22  -22  49.7%   +3.2   620
  Rodent II 0.9.33 64-bit            2868  +27  -27  50.8%   -7.8   419
  Rodent 1.7 64-bit                  2850  +19  -19  50.5%   -2.6   888
  Rodent II 0.8.7 64-bit             2809  +27  -27  46.2%  +24.1   448
  Rodent 1.6 64-bit                  2800  +31  -31  49.0%   +8.1   338
  Rodent 1.5 64-bit                  2784  +21  -21  46.3%  +25.6   726
  Rodent 1.4 64-bit                  2758  +23  -23  47.9%  +14.7   629
  Rodent 1.3 64-bit                  2740  +28  -29  51.1%   -7.3   378
  Rodent 1.2 64-bit                  2690  +32  -32  47.0%  +17.0   320
  Rodent 1.0 64-bit                  2678  +27  -27  47.1%  +19.9   417
  Rodent 1.1 64-bit                  2668  +33  -33  49.2%   +5.4   300
  Rodent 0.16 64-bit                 2602  +30  -31  47.7%  +17.5   354
  Rodent 0.15 64-bit                 2573  +32  -32  50.5%   -1.4   301
  Rodent 0.10                        2535  +33  -33  51.0%   -9.1   303

Created in 2005-2013 by CCRL team
Last games added on July 11, 2019