CCRL 40/40
Downloads and Statistics
November 8, 2019
Testing summary:
Total: 1'097'085 games
played by 2'561 programs
149942 CPU days (X2 4600+)

White wins: 380'560 (34.7%)
Black wins: 282'789 (25.8%)
Draws: 433'736 (39.5%)
White score: 54.5%

Custom engine selection

Comparing 16 engines!
16 selected engines played 0 games with each other



CCRL 40/40 Rating List - Custom engine selection
1097085 games played by 2561 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 November 8, 2019 with Bayeselo based on 1'097'085 games
Tested by CCRL team, 2005-2019, http://ccrl.chessdom.com/ccrl/4040/

Rank               Engine                Elo   +    -   Score  AvOp  Games
Gaviota 1.0 64-bit 4CPU            2943  +16  -16  47.3%  +16.0  1256
  Gaviota 0.86 64-bit 4CPU           2860  +24  -24  53.4%  -26.7   617
  Gaviota 1.0 64-bit                 2860  +11  -11  48.3%   +8.1  2676
  Gaviota 0.86 64-bit                2782  +21  -21  52.5%  -16.5   733
  Gaviota 0.85.1 64-bit              2698  +23  -23  48.9%   +7.3   606
  Gaviota 0.85.1 32-bit              2664  +33  -33  50.8%   -4.3   308
  Gaviota 0.83 64-bit 4CPU           2648  +25  -25  47.3%  +20.6   566
  Gaviota 0.84 64-bit                2639  +32  -32  50.8%   -6.6   321
  Gaviota 0.83 64-bit                2599  +27  -27  51.2%  -10.3   486
  Gaviota 0.84 32-bit                2571  +27  -27  49.2%   +6.5   454
  Gaviota 0.80 64-bit                2534  +31  -31  51.0%   -7.2   352
  Gaviota 0.83 32-bit                2525  +27  -27  46.8%  +20.3   455
  Gaviota 0.74.41 64-bit             2489  +31  -31  45.4%  +30.8   359
  Gaviota 0.80 32-bit                2467  +29  -29  51.5%  -11.0   421
  Gaviota 0.74.41 32-bit             2446  +33  -33  47.1%  +20.3   306
  Gaviota 0.75.7 32-bit              2416  +32  -32  46.4%  +24.9   336

Created in 2005-2013 by CCRL team
Last games added on November 8, 2019