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%

Engine Details

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Chiron 2 64-bit 4CPU in CCRL 40/4, 2019-07-20
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:
Chiron 2 64-bit 4CPU has no rank with rating of 3119 Elo points (+14 -15),
based on 1702 games: 321 wins, 737 losses and 644 draws
Score: 37.8%, Average opponent: +85.2, Draws: 37.8%


Pairwise results:
     Opponent                         Elo     Score                  LOS   Perf
 - Stockfish 6 64-bit 4CPU            3393  14.5-88.5  (+1 -75=27)    0.0    +2
 - Stockfish 5 64-bit 4CPU            3366  22.0-108.0 (+3 -89=38)    0.0    +7
 - Komodo 8 64-bit 4CPU               3352  13.0-87.0  (+0 -74=26)    0.0   -48
 - Houdini 4 64-bit 4CPU              3331   5.5-44.5  (+0 -39=11)    0.0  -100
 - Komodo 7a 64-bit 4CPU              3320  25.5-74.5  (+4 -53=43)    0.0   +45
 - Stockfish DD 64-bit 4CPU           3309  10.5-38.5  (+2 -30=17)    0.0    -5
 - Komodo TCEC 64-bit 4CPU            3286  11.0-38.0  (+4 -31=14)    0.0   -31
 - Gull 3 64-bit 4CPU                 3260  16.0-31.0  (+6 -21=20)    0.0   +40
 - Gull 2.8b 64-bit 4CPU              3257  12.5-37.5  (+2 -27=21)    0.0   -21
 - Fire 4 64-bit 4CPU                 3256  56.5-123.5 (+17-84=79)    0.0   +21
 - Gull 2.3 64-bit 4CPU               3244  16.0-34.0  (+5 -23=22)    0.0   +13
 - Critter 1.6a 64-bit 4CPU           3232  14.5-35.5  (+4 -25=21)    0.0   -20
 - Fritz 15 64-bit 4CPU               3223  34.5-61.5  (+13-40=43)    0.0   +17
 - Rybka 4.1 64-bit 4CPU              3205  17.0-32.0  (+8 -23=18)    0.0   -16
 - Hannibal 1.4b 64-bit 4CPU          3117  23.0-27.0  (+11-15=24)   58.5   -28
 - Naum 4.2 64-bit 4CPU               3098  24.0-26.0  (+10-12=28)   99.4   -32
 - Senpai 1.0 64-bit 4CPU             3096  28.0-22.0  (+14-8 =28)   98.4   +10
 - Protector 1.5.0 64-bit 4CPU        3086  24.0-26.0  (+14-16=20)   99.9   -44
 - Deep Shredder 12 64-bit 4CPU       3041  32.0-18.0  (+22-8 =20)  100.0   +12
 - Spike 1.4 Leiden 4CPU              3037  34.0-15.0  (+23-4 =22)  100.0   +41
 - Bobcat 7.6 64-bit 4CPU             3034  30.5-21.5  (+18-9 =25)  100.0   -33
 - Spark 1.0 64-bit 4CPU              3029  30.0-19.0  (+20-9 =20)  100.0   -18
 - Deep Junior Yokohama 64-bit 4CPU   3025  33.5-16.5  (+25-8 =17)  100.0   +18
 - Zappa Mexico II 64-bit 4CPU        2970  34.0-15.0  (+28-9 =12)  100.0    -8
 - Deep Sjeng WC2008 64-bit 4CPU      2940  38.5-11.5  (+30-3 =17)  100.0    +8
 - Toga II 3.0 4CPU                   2930  42.5-7.5   (+37-2 =11)  100.0   +83


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