CCRL 40/4
Downloads and Statistics
December 14, 2019
Testing summary:
Total: 2'147'837 games
played by 2'515 programs
29208 CPU days (X2 4600+)

White wins: 831'895 (38.7%)
Black wins: 671'656 (31.3%)
Draws: 644'286 (30.0%)
White score: 53.7%

Custom engine selection

Comparing 17 engines!
17 selected engines played 95 games with each other



CCRL 40/4 Rating List - Custom engine selection
2147837 games played by 2515 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 CPU.
Computed on December 14, 2019 with Bayeselo based on 2'147'837 games
Tested by CCRL team, 2005-2019, http://ccrl.chessdom.com/ccrl/404/

Rank               Engine                Elo   +    -   Score  AvOp  Games
Critter 1.6a 64-bit 4CPU           3232   +7   -7  46.4%  +23.4  7345
  Critter 1.2 64-bit 4CPU            3209  +17  -16  68.6% -132.4  1331
  Critter 1.6a 64-bit                3158   +7   -6  43.9%  +46.1  9513
  Critter 1.01 64-bit 4CPU           3157  +16  -16  64.3% -100.8  1338
  Critter 1.4 64-bit                 3141  +15  -15  65.5% -113.7  1679
  Critter 0.90 64-bit 4CPU           3128  +15  -15  64.5%  -99.3  1619
  Critter 1.2 64-bit                 3120  +16  -15  69.6% -151.6  1627
  Critter 1.01 64-bit                3077  +19  -19  73.3% -181.7  1092
  Critter 0.80 64-bit 4CPU           3070  +17  -17  58.6%  -58.3  1149
  Critter 0.90 64-bit                3049  +16  -16  62.9% -102.1  1611
  Critter 0.70 64-bit 4CPU           3037  +23  -23  51.1%   -7.9   567
  Critter 0.80 64-bit                2990  +21  -20  74.4% -188.7  1007
  Critter 0.70 64-bit                2973  +18  -18  73.9% -195.1  1425
  Critter 0.60 64-bit 4CPU           2911  +23  -23  37.3%  +89.8   649
  Critter 0.60 64-bit                2866  +16  -17  46.6%  +24.2  1249
  Critter 0.52 64-bit                2794  +21  -21  64.5% -102.0   797
  Critter 0.40 32-bit                2568  +20  -20  55.5%  -66.5   974

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