CCRL 40/4
Downloads and Statistics
November 8, 2019
Testing summary:
Total: 2'127'795 games
played by 2'486 programs
28766 CPU days (X2 4600+)

White wins: 825'412 (38.8%)
Black wins: 667'151 (31.4%)
Draws: 635'232 (29.9%)
White score: 53.7%

Engine Details

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Stockfish 2019-10-09 64-bit 8CPU in CCRL 40/4, 2019-11-08
Ponder off, General book (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.
Tested by CCRL team, 2005-2019, http://ccrl.chessdom.com/ccrl/404/

CCRL 40/4 main list:
Stockfish 2019-10-09 64-bit 8CPU is #1 with rating of 3647 Elo points (+21 -20),
based on 900 games: 546 wins, 7 losses and 347 draws
Score: 79.9%, Average opponent: −204.1, Draws: 38.6%


Pairwise results:
     Opponent                         Elo     Score                  LOS   Perf
 - Houdini 6 64-bit 4CPU              3518  77.5-22.5  (+55-0 =45)  100.0   +44
 - Komodo 13.1 64-bit 4CPU            3514  76.5-23.5  (+53-0 =47)  100.0   +30
 - Lc0 0.21.1 JH.T6.532 GTX1050       3493  66.0-34.0  (+35-3 =62)  100.0   -65
 - Allie 0.5 nn42482 GTX1050          3446  75.5-24.5  (+53-2 =45)  100.0   -42
 - Fire 7.1 64-bit 4CPU               3426  82.5-17.5  (+66-1 =33)  100.0    +6
 - Ethereal 11.50 64-bit 4CPU         3416  82.0-18.0  (+64-0 =36)  100.0   -12
 - Komodo 12.3 MCTS 64-bit 4CPU       3408  88.0-12.0  (+76-0 =24)  100.0   +56
 - Xiphos 0.5 64-bit 4CPU             3399  83.5-16.5  (+67-0 =33)  100.0   -14
 - Laser 1.7 64-bit 4CPU              3366  88.0-12.0  (+77-1 =22)  100.0   +20


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