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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Counter 2.9 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:
Counter 2.9 64-bit has no rank with rating of 2702 Elo points (+20 -20),
based on 920 games: 333 wins, 342 losses and 245 draws
Score: 49.5%, Average opponent: +6.2, Draws: 26.6%


Pairwise results:
     Opponent                         Elo     Score                  LOS   Perf
 - Xiphos 0.3 64-bit                  3137   0.0-1.0   (+0 -1 =0 )    0.0  -INF
 - Pirarucu 2.3.8 64-bit              2866   3.0-13.0  (+2 -12=2 )    0.0   -97
 - Monolith 1.0 64-bit                2821  12.5-19.5  (+9 -16=7 )    0.0   +37
 - Marvin 3.1.0 64-bit                2793   1.0-0.0   (+1 -0 =0 )    0.0  +INF
 - RofChade 1.0 64-bit                2793   9.5-22.5  (+6 -19=7 )    0.0   -59
 - RubiChess 1.1 64-bit               2780  22.0-34.0  (+15-27=14)    0.0     0
 - Jonny 4.00                         2763  80.0-111.0 (+59-90=42)    0.0    +1
 - GreKo 2018.08 64-bit               2711  21.0-11.0  (+16-6 =10)   24.1  +115
 - Donna 4.1 64-bit                   2698  16.5-15.5  (+10-9 =13)   64.8    +5
 - Delfi 5.4                          2683  37.0-32.0  (+28-23=18)   97.1    +5
 - Djinn 1.021 64-bit                 2676  29.5-39.5  (+19-29=21)   99.1   -77
 - RedQueen 1.1.98 64-bit             2671  38.0-31.0  (+32-25=12)   99.7    +6
 - Gandalf 7 64-bit                   2663  38.5-30.5  (+26-18=25)  100.0    -3
 - Alaric 707                         2663  36.0-34.0  (+26-24=20)  100.0   -28
 - ECE X3 64-bit                      2655   0.5-0.5   (+0 -0 =1 )  100.0   -16
 - Phalanx XXV                        2653  42.0-28.0  (+31-17=22)  100.0   +18
 - Donna 4.0 64-bit                   2651  45.5-24.5  (+36-15=19)  100.0   +54
 - RubiChess 1.0 64-bit               2651  17.5-13.5  (+13-9 =9 )  100.0    -5
 - Cyrano 0.6b17 64-bit               2642   0.5-0.5   (+0 -0 =1 )  100.0   -29
 - Winter 0.2 64-bit                  2612   1.0-0.0   (+1 -0 =0 )  100.0  +INF
 - Rotor 0.8                          2612   0.5-0.5   (+0 -0 =1 )  100.0   -59
 - Jellyfish 1.1 64-bit               2610   0.0-1.0   (+0 -1 =0 )  100.0  -INF
 - N2 0.4 64-bit                      2590   1.0-0.0   (+1 -0 =0 )  100.0  +INF
 - Dorky 4.8 64-bit                   2547   0.5-0.5   (+0 -0 =1 )  100.0  -124
 - Betsabe II 1.84                    2543   1.0-0.0   (+1 -0 =0 )  100.0  +INF
 - AnMon 5.75                         2539   1.0-0.0   (+1 -0 =0 )  100.0  +INF
 - Capivara LK 0.09b02g 64-bit        2537   0.0-1.0   (+0 -1 =0 )  100.0  -INF


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