CCRL 40/4
Downloads and Statistics
November 16, 2017
Testing summary:
Total: 1'577'904 games
played by 1'862 programs
21074 CPU days (X2 4600+)

White wins: 617'441 (39.1%)
Black wins: 503'303 (31.9%)
Draws: 457'160 (29.0%)
White score: 53.6%

Engine Details

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Chiron 4 64-bit 4CPU in CCRL 40/4, 2017-11-16
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, 2005-2017, http://computerchess.org.uk/ccrl/404/

CCRL 40/4 main list:
Chiron 4 64-bit 4CPU is #11 with rating of 3234 Elo points (+15 -14),
based on 1586 games: 262 wins, 591 losses and 733 draws
Score: 39.6%, Average opponent: +74.3, Draws: 46.2%


Pairwise results:
     Opponent                         Elo     Score                  LOS   Perf
 - Houdini 6 64-bit 4CPU              3527  13.0-89.0  (+0 -76=26)    0.0    +8
 - SugaR XPrO 1.2 64-bit 4CPU         3525   5.0-54.0  (+0 -49=10)    0.0   -66
 - asmFish 191017 64-bit 4CPU         3506   7.0-43.0  (+0 -36=14)    0.0    +5
 - Stockfish 8 64-bit 4CPU            3487  12.5-39.5  (+1 -28=23)    0.0   +90
 - Houdini 5.01 64-bit 4CPU           3471  11.0-41.0  (+0 -30=22)    0.0   +53
 - Komodo 10.4 64-bit 4CPU            3468   9.0-51.0  (+1 -43=16)    0.0   -27
 - Komodo 11.01 64-bit 4CPU           3462   9.0-51.0  (+1 -43=16)    0.0   -32
 - Fire 6.1 64-bit 4CPU               3337  24.5-62.5  (+5 -43=39)    0.0   -34
 - Fire 5 64-bit 4CPU                 3330  16.0-36.0  (+3 -23=26)    0.0   -18
 - Fizbo 1.9 64-bit 4CPU              3313  18.5-33.5  (+8 -23=21)    0.0   -11
 - Deep Shredder 13 64-bit 4CPU       3295  20.5-31.5  (+7 -18=27)    0.0    -1
 - Andscacs 0.91 64-bit 4CPU          3270  25.0-35.0  (+8 -18=34)    0.0   -11
 - Andscacs 0.90 64-bit 4CPU          3269  25.5-26.5  (+9 -10=33)    0.1   +27
 - Gull 3 64-bit 4CPU                 3260  26.0-26.0  (+10-10=32)    0.1   +25
 - Andscacs 0.88 64-bit 4CPU          3253  27.5-24.5  (+12-9 =31)    4.4   +36
 - Booot 6.2 64-bit 4CPU              3248  25.5-34.5  (+8 -17=35)    8.5   -28
 - Equinox 3.30 64-bit 4CPU           3247  24.0-28.0  (+9 -13=30)    6.1    -7
 - Critter 1.6a 64-bit 4CPU           3231  22.0-30.0  (+6 -14=32)   63.2   -43
 - Gull 3.1 64-bit 4CPU               3230  29.5-30.5  (+14-15=31)   61.0    -8
 - Hannibal 1.7 64-bit 4CPU           3225  25.5-26.5  (+12-13=27)   82.1   -15
 - Fritz 15 64-bit 4CPU               3219  32.0-20.0  (+17-5 =30)   94.5   +53
 - NirvanaChess 2.3 64-bit 4CPU       3207  23.5-28.5  (+11-16=25)   99.7   -54
 - Rybka 4 64-bit 4CPU                3197  30.0-22.0  (+15-7 =30)  100.0    +6
 - BlackMamba 2.0 64-bit 4CPU         3194  31.5-20.5  (+18-7 =27)  100.0   +24
 - Booot 6.1 64-bit 4CPU              3183  27.0-25.0  (+11-9 =32)  100.0   -39
 - Texel 1.06 64-bit 4CPU             3153  32.0-20.0  (+18-6 =28)  100.0   -12
 - Strelka 5.5 64-bit                 3144  37.5-14.5  (+27-4 =21)  100.0   +53
 - Hiarcs 14 4CPU                     3108  38.5-13.5  (+31-6 =15)  100.0   +43


Created in 2005-2013 by CCRL team
Last games added on November 16, 2017