CCRL 40/4
Downloads and Statistics
October 12, 2019
Testing summary:
Total: 2'115'766 games
played by 2'468 programs
28564 CPU days (X2 4600+)

White wins: 821'094 (38.8%)
Black wins: 663'997 (31.4%)
Draws: 630'675 (29.8%)
White score: 53.7%

Engine Details

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Stockfish 4 64-bit in CCRL 40/4, 2019-10-12
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 4 64-bit has no rank with rating of 3180 Elo points (+13 -13),
based on 2038 games: 757 wins, 341 losses and 940 draws
Score: 60.2%, Average opponent: −67.4, Draws: 46.1%


Pairwise results:
     Opponent                         Elo     Score                  LOS   Perf
 - Houdini 4 64-bit                   3241  34.5-53.5  (+14-33=41)    0.0    -3
 - Stockfish DD 64-bit                3227  33.0-53.0  (+6 -26=54)    0.0   -17
 - Houdini 3 64-bit                   3217  58.5-65.5  (+31-38=55)    0.0   +19
 - Komodo TCEC 64-bit                 3211  20.0-24.0  (+10-14=20)    0.4    +2
 - Komodo 7a 64-bit                   3206  20.5-29.5  (+7 -16=27)    0.3   -27
 - Komodo 6 64-bit                    3185  55.5-68.5  (+26-39=59)   34.0   -27
 - Komodo CCT 64-bit                  3181  62.0-62.0  (+37-37=50)   44.3    +1
 - Komodo 5.1 64-bit                  3164  39.5-40.5  (+17-18=45)   94.3   -20
 - Critter 1.6a 64-bit                3158  39.5-40.5  (+20-21=39)   99.9   -26
 - PanChess 00.537 64-bit             3139  46.5-33.5  (+23-10=47)  100.0    +3
 - Bouquet 1.6 64-bit                 3133  43.0-37.0  (+17-11=52)  100.0   -26
 - RobboLito 0.21Q 64-bit             3121  49.0-31.0  (+27-9 =44)  100.0    +6
 - Vitruvius 1.11C 64-bit             3113  48.5-31.5  (+29-12=39)  100.0    -3
 - Rybka 4.1 64-bit                   3109  56.0-24.0  (+38-6 =36)  100.0   +55
 - IvanHoe 9.46h 64-bit               3107  49.5-30.5  (+33-14=33)  100.0    +2
 - Gull 2.1 64-bit                    3098 115.5-46.5  (+82-13=67)  100.0   +52
 - Gull 2.2 64-bit                    3075 100.0-46.0  (+65-11=70)  100.0   +10
 - Hannibal 1.4b 64-bit               3019  39.0-11.0  (+28-0 =22)  100.0   +16
 - Hannibal 1.3 64-bit                2998  60.5-19.5  (+45-4 =31)  100.0   -13
 - Naum 4.2 64-bit                    2988  59.0-21.0  (+43-5 =32)  100.0   -40
 - Protector 1.5.0 64-bit             2984  60.5-19.5  (+44-3 =33)  100.0   -31
 - Spark 1.0 64-bit                   2927  69.0-11.0  (+59-1 =20)  100.0   +23
 - Spike 1.4 Leiden                   2922  68.0-12.0  (+56-0 =24)  100.0    -3


Created in 2005-2013 by CCRL team
Last games added on October 12, 2019