CCRL 40/40
Downloads and Statistics
July 11, 2019
Testing summary:
Total: 1'066'603 games
played by 2'494 programs
145750 CPU days (X2 4600+)

White wins: 370'641 (34.7%)
Black wins: 275'905 (25.9%)
Draws: 420'057 (39.4%)
White score: 54.4%

Engine Details

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Counter 3.1 64-bit in CCRL 40/40, 2019-07-11
Ponder off, General book (up to 12 moves), 3-4-5 piece EGTB
Time control: Equivalent to 40 moves in 40 minutes on Athlon 64 X2 4600+ (2.4 GHz), about 15 minutes on a modern Intel CPU.
Tested by CCRL team, 2005-2019, http://computerchess.org.uk/ccrl/4040/

CCRL 40/40 main list:
Counter 3.1 64-bit has no rank with rating of 2783 Elo points (+20 -20),
based on 804 games: 262 wins, 240 losses and 302 draws
Score: 51.4%, Average opponent: −9.5, Draws: 37.6%


Pairwise results:
     Opponent                         Elo     Score                  LOS   Perf
 - Lc0 0.20.1 w11258 64-bit           2949   4.5-13.5  (+2 -11=5 )    0.0   -11
 - Marvin 3.2.0 64-bit 4CPU           2920  10.5-23.5  (+3 -16=15)    0.0   +18
 - RubiChess 1.2.1 64-bit             2907   5.5-8.5   (+2 -5 =7 )    0.0   +61
 - Amoeba 2.7 64-bit                  2905   4.5-13.5  (+0 -9 =9 )    0.0   -27
 - Toga II 4.0 64-bit                 2904   5.0-13.0  (+2 -10=6 )    0.0   -30
 - Shield 2.1 64-bit 4CPU             2841  20.0-12.0  (+14-6 =12)    0.0  +136
 - Winter 0.4a 64-bit                 2831  14.5-29.5  (+5 -20=19)    0.1   -59
 - Tucano 7.05 64-bit                 2823   8.0-10.0  (+4 -6 =8 )    1.2    +8
 - Zurichess Neuchatel 64-bit         2820   7.5-10.5  (+2 -5 =11)    0.2   -11
 - Jonny 4.00 4CPU                    2815  17.0-15.0  (+12-10=10)    2.4   +54
 - Godel 4.4.5 64-bit                 2813  13.0-23.0  (+10-20=6 )    1.4   -73
 - The Baron 3.42 64-bit              2795   7.5-10.5  (+3 -6 =9 )   16.7   -35
 - RuyDos 1.1.9 64-bit                2792  13.0-23.0  (+9 -19=8 )   23.3   -91
 - tomitankChess 3.0 64-bit           2780  10.5-15.5  (+4 -9 =13)   59.1   -57
 - Winter 0.3 64-bit                  2763  11.5-10.5  (+7 -6 =9 )   89.6   -12
 - Bison 9.11 64-bit                  2755  28.5-21.5  (+18-11=21)   99.1   +16
 - Cheese 2.0 64-bit                  2750  13.5-8.5   (+9 -4 =9 )   99.5   +39
 - Carballo 1.7 64-bit                2738  11.5-10.5  (+6 -5 =11)  100.0   -32
 - Arminius 2018-12-23 64-bit         2730  11.5-10.5  (+9 -8 =5 )  100.0   -35
 - Shield 2.1 64-bit                  2727  14.5-7.5   (+10-3 =9 )  100.0   +43
 - Nebula 2.0 64-bit 4CPU             2725  21.0-11.0  (+15-5 =12)  100.0   +41
 - Devel 2.0000                       2722  12.0-6.0   (+9 -3 =6 )  100.0   +50
 - Counter 2.9 64-bit                 2714  36.5-23.5  (+25-12=23)  100.0     0
 - GreKo 2018 64-bit                  2709  26.5-19.5  (+19-12=15)  100.0   -23
 - ProDeo 2.8                         2704  25.0-11.0  (+18-4 =14)  100.0   +46
 - Chessmaster 11 Conqueror           2698  10.5-7.5   (+6 -3 =9 )  100.0   -34
 - Gogobello 1.4 64-bit               2686  23.5-12.5  (+16-5 =15)  100.0     0
 - ECE X3 64-bit                      2644  26.0-10.0  (+23-7 =6 )  100.0   +33


Created in 2005-2013 by CCRL team
Last games added on July 11, 2019