CCRL 40/4
Downloads and Statistics
August 17, 2019
Testing summary:
Total: 2'085'472 games
played by 2'422 programs
28065 CPU days (X2 4600+)

White wins: 809'852 (38.8%)
Black wins: 654'916 (31.4%)
Draws: 620'704 (29.8%)
White score: 53.7%

Engine Details

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Chiron 1.1a 64-bit 4CPU in CCRL 40/4, 2019-08-17
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 1.1a 64-bit 4CPU has no rank with rating of 3064 Elo points (+16 -16),
based on 1244 games: 320 wins, 428 losses and 496 draws
Score: 45.7%, Average opponent: +28.6, Draws: 39.9%


Pairwise results:
     Opponent                         Elo     Score                  LOS   Perf
 - Houdini 3 64-bit 4CPU              3320   5.5-46.5  (+1 -42=9 )    0.0   -75
 - Houdini 2.0c 64-bit 4CPU           3277  10.0-52.0  (+1 -43=18)    0.0   -31
 - Critter 1.6a 64-bit 4CPU           3233  16.0-46.0  (+3 -33=26)    0.0   +14
 - Stockfish 2.3.1 64-bit 4CPU        3221  15.0-47.0  (+3 -35=24)    0.0   -10
 - Rybka 4.1 64-bit 4CPU              3206  19.5-42.5  (+5 -28=29)    0.0   +29
 - Komodo 5 64-bit                    3145  20.0-40.0  (+8 -28=24)    0.0   -24
 - Strelka 5.5 64-bit                 3141  22.5-37.5  (+4 -19=37)    0.0    +9
 - Hiarcs 14 4CPU                     3109  19.0-34.0  (+9 -24=20)    0.0   -45
 - Naum 4.2 64-bit 4CPU               3099  47.5-52.5  (+27-32=41)    0.0   +22
 - Deep Fritz 13 4CPU                 3074  29.0-22.0  (+18-11=22)   19.7   +49
 - Deep Shredder 12 64-bit 4CPU       3042  60.0-44.0  (+42-26=36)   99.4   +28
 - Spike 1.4 Leiden 4CPU              3038  59.5-44.5  (+41-26=37)   99.7   +23
 - Spark 1.0 64-bit 4CPU              3029  48.5-55.5  (+19-26=59)  100.0   -51
 - Fritz 13                           2985  70.0-30.0  (+55-15=30)  100.0   +60
 - Protector 1.4.0 64-bit 4CPU        2972  63.0-41.0  (+42-20=42)  100.0   -23
 - Zappa Mexico II 64-bit 4CPU        2971  63.0-41.0  (+42-20=42)  100.0   -24


Created in 2005-2013 by CCRL team
Last games added on August 17, 2019