CCRL 40/40
Downloads and Statistics
July 19, 2019
Testing summary:
Total: 1'068'538 games
played by 2'502 programs
146028 CPU days (X2 4600+)

White wins: 371'241 (34.7%)
Black wins: 276'263 (25.9%)
Draws: 421'034 (39.4%)
White score: 54.4%

Custom engine selection

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



CCRL 40/40 Rating List - Custom engine selection
1068538 games played by 2502 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 19, 2019 with Bayeselo based on 1'068'538 games
Tested by CCRL team, 2005-2019, http://computerchess.org.uk/ccrl/4040/

Rank               Engine                Elo   +    -   Score  AvOp  Games
RedQueen 1.1.98 64-bit 4CPU        2683  +28  -28  39.5%  +80.7   474
  RedQueen 1.1.3 64-bit              2675  +25  -25  48.5%   +8.9   536
  RedQueen 1.1.98 64-bit             2665  +18  -18  48.9%   +5.0  1099
  RedQueen 1.1.97 64-bit 4CPU        2662  +22  -22  45.7%  +26.9   726
  RedQueen 1.1.97 64-bit             2660  +17  -17  48.5%  +10.0  1132
  RedQueen 1.1.4 64-bit              2653  +28  -28  49.8%   +0.8   414
  RedQueen 1.0.0 32-bit              2637  +24  -24  51.6%   -7.7   576
  RedQueen 1.1.1 64-bit              2625  +28  -28  48.3%  +12.3   436
  RedQueen 1.0.0 64-bit              2624  +32  -32  48.2%  +10.9   312
  RedQueen 0.9.8 64-bit              2588  +34  -34  50.7%   -4.9   301
  RedQueen 1.1.1 32-bit              2585  +32  -33  50.6%   +0.0   308
  RedQueen 0.9.8 32-bit              2576  +22  -22  49.6%   +5.5   730
  RedQueen 0.9 64-bit                2555  +39  -39  52.7%  -23.3   240
  RedQueen 0.7.5 64-bit              2433  +34  -34  51.0%  -10.0   290
  RedQueen 0.7 64-bit                2366  +35  -35  56.0%  -44.0   298
  RedQueen 0.6                       2176  +30  -30  45.8%  +29.8   406

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