CCRL 40/4
Downloads and Statistics
November 16, 2019
Testing summary:
Total: 2'132'153 games
played by 2'491 programs
28840 CPU days (X2 4600+)

White wins: 826'813 (38.8%)
Black wins: 668'076 (31.3%)
Draws: 637'264 (29.9%)
White score: 53.7%

Custom engine selection

Comparing 9 engines!
9 selected engines played 0 games with each other



CCRL 40/4 Rating List - Custom engine selection
2132153 games played by 2491 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 November 16, 2019 with Bayeselo based on 2'132'153 games
Tested by CCRL team, 2005-2019, http://ccrl.chessdom.com/ccrl/404/

Rank               Engine                Elo   +    -   Score  AvOp  Games
Defenchess 2.2 64-bit 4CPU         3354  +20  -20  50.5%   +9.2   785
  Defenchess 2.1 64-bit 4CPU         3288  +19  -19  44.6%  +38.3   941
  Defenchess 2.2 64-bit              3269  +19  -19  48.0%  +10.8   752
  Defenchess 2.1 64-bit              3223  +16  -16  50.6%   -0.6  1243
  Defenchess 2.0 64-bit              3193  +41  -40  64.6%  -90.3   188
  Defenchess 1.1f 64-bit 4CPU        3120  +14  -14  47.0%  +20.0  1701
  Defenchess 1.1f 64-bit             3047  +11  -11  50.9%  -15.5  3036
  Defenchess 1.1e 64-bit             3036  +17  -17  69.6% -144.8  1361
  Defenchess 1.0 64-bit              2845  +18  -18  51.3%  -10.4  1056

Created in 2005-2013 by CCRL team
Last games added on November 16, 2019