CCRL 40/4
Downloads and Statistics
August 20, 2019
Testing summary:
Total: 2'086'404 games
played by 2'425 programs
28073 CPU days (X2 4600+)

White wins: 810'229 (38.8%)
Black wins: 655'304 (31.4%)
Draws: 620'871 (29.8%)
White score: 53.7%

Engine Details

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Show each game results
Stockfish 4 64-bit 4CPU in CCRL 40/4, 2019-08-20
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 Intel CPU.
Tested by CCRL team, 2005-2019, http://computerchess.org.uk/ccrl/404/

CCRL 40/4 main list:
Stockfish 4 64-bit 4CPU has no rank with rating of 3269 Elo points (+17 -17),
based on 1346 games: 683 wins, 165 losses and 498 draws
Score: 69.2%, Average opponent: −146.0, Draws: 37.0%


Pairwise results:
     Opponent                         Elo     Score                  LOS   Perf
 - Houdini 4 64-bit 4CPU              3332  21.0-29.0  (+12-20=18)    0.0   +11
 - Houdini 3 64-bit 4CPU              3319  18.5-31.5  (+9 -22=19)    0.0   -33
 - Stockfish DD 64-bit 4CPU           3310  21.5-28.5  (+5 -12=33)    0.0    +1
 - Komodo TCEC 64-bit 4CPU            3286  21.0-26.0  (+8 -13=26)    6.4   -12
 - Houdini 2.0c 64-bit 4CPU           3277  25.0-25.0  (+12-12=26)   22.4    +7
 - Komodo 6 64-bit 4CPU               3251  26.5-23.5  (+12-9 =29)   92.5    -3
 - Gull 2.3 64-bit 4CPU               3244  30.5-19.5  (+17-6 =27)   98.3   +40
 - Houdini 4 64-bit                   3240  31.0-19.0  (+19-7 =24)   99.9   +43
 - Komodo 5.1 64-bit 4CPU             3238  27.0-23.0  (+16-12=22)   99.7    -6
 - Critter 1.6a 64-bit 4CPU           3232  26.0-24.0  (+16-14=20)  100.0   -25
 - Gull 2.2 64-bit 4CPU               3223  28.5-21.5  (+15-8 =27)  100.0    -6
 - Rybka 4.1 64-bit 4CPU              3206  33.5-16.5  (+23-6 =21)  100.0   +44
 - Hannibal 1.4b 64-bit 4CPU          3118  36.5-13.5  (+24-1 =25)  100.0   -12
 - Naum 4.2 64-bit 4CPU               3098  37.0-13.0  (+27-3 =20)  100.0   -18
 - Protector 1.5.0 64-bit 4CPU        3087  41.0-9.0   (+32-0 =18)  100.0   +32
 - Hannibal 1.3 64-bit 4CPU           3066  36.0-13.0  (+27-4 =18)  100.0   -47
 - Deep Shredder 12 64-bit 4CPU       3041  42.5-7.5   (+36-1 =13)  100.0   +35
 - Spike 1.4 Leiden 4CPU              3037  38.5-11.5  (+29-2 =19)  100.0   -53
 - Spark 1.0 64-bit 4CPU              3029  42.0-8.0   (+36-2 =12)  100.0   +19
 - Deep Junior 13.3 64-bit 4CPU       3026  40.5-9.5   (+34-3 =13)  100.0   -15
 - Deep Junior Yokohama 64-bit 4CPU   3025  41.0-9.0   (+33-1 =16)  100.0   -18
 - Protector 1.4.0 64-bit 4CPU        2971  44.5-5.5   (+41-2 =7 )  100.0   +42
 - Zappa Mexico II 64-bit 4CPU        2970  40.5-9.5   (+33-2 =15)  100.0   -76
 - Deep Sjeng WC2008 64-bit 4CPU      2940  47.0-3.0   (+44-0 =6 )  100.0   +89
 - Deep Sjeng 3.0 64-bit 4CPU         2930  44.5-5.5   (+40-1 =9 )  100.0   -13
 - Toga II 3.0 4CPU                   2930  46.0-4.0   (+42-0 =8 )  100.0   +29
 - Toga II 1.4 beta5c 4CPU            2904  44.5-5.5   (+41-2 =7 )  100.0   -24


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