CCRL 40/4
Downloads and Statistics
July 20, 2019
Testing summary:
Total: 2'069'919 games
played by 2'400 programs
27811 CPU days (X2 4600+)

White wins: 804'066 (38.8%)
Black wins: 650'528 (31.4%)
Draws: 615'325 (29.7%)
White score: 53.7%

Custom engine selection

Comparing 4 engines!
4 selected engines played 0 games with each other



CCRL 40/4 Rating List - Custom engine selection
2069919 games played by 2400 programs, run by 21 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 July 20, 2019 with Bayeselo based on 2'069'919 games
Tested by CCRL team, 2005-2019, http://computerchess.org.uk/ccrl/404/

Rank               Engine                Elo   +    -   Score  AvOp  Games
Defenchess (SCTR) 1.1f 64-bit 4CPU 3120  +14  -14  47.0%  +19.7  1701
  Defenchess (SCTR) 1.1f 64-bit      3048  +11  -11  50.7%  -14.5  2972
  Defenchess (SCTR) 1.1e 64-bit      3036  +17  -17  69.6% -145.1  1361
  Defenchess (SCTR) 1.0 64-bit       2844  +18  -17  51.3%   -9.9  1056

Created in 2005-2013 by CCRL team
Last games added on July 20, 2019