CCRL 40/4
Downloads and Statistics
October 19, 2019
Testing summary:
Total: 2'120'567 games
played by 2'479 programs
28673 CPU days (X2 4600+)

White wins: 822'832 (38.8%)
Black wins: 665'262 (31.4%)
Draws: 632'473 (29.8%)
White score: 53.7%

Engine Details

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Counter 2.8 64-bit in CCRL 40/4, 2019-10-19
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 2.8 64-bit has no rank with rating of 2642 Elo points (+21 -21),
based on 800 games: 291 wins, 282 losses and 227 draws
Score: 50.6%, Average opponent: −3.8, Draws: 28.4%


Pairwise results:
     Opponent                         Elo     Score                  LOS   Perf
 - Dirty 30Apr2017 64-bit             2864   6.5-33.5  (+2 -29=9 )    0.0   -38
 - Tornado 8.0 64-bit                 2826  15.0-25.0  (+10-20=10)    0.0   +94
 - Godel 4.0.7 64-bit                 2803  15.0-25.0  (+11-21=8 )    0.0   +66
 - RuyDos 1.1.6 64-bit                2798   9.5-30.5  (+5 -26=9 )    0.0   -41
 - Gogobello 1.4 64-bit               2755  14.5-25.5  (+6 -17=17)    0.0   +25
 - Shield 2.1 64-bit                  2739  14.5-25.5  (+9 -20=11)    0.0     0
 - Devel 2.0000                       2709  15.0-25.0  (+9 -19=12)    0.0   -17
 - RedQueen 1.1.98 64-bit             2670  18.0-22.0  (+10-14=16)    1.2    -3
 - Nebula 2.0 64-bit                  2654  19.5-20.5  (+13-14=13)   16.3    +3
 - DanaSah 7.3                        2616  20.0-20.0  (+12-12=16)   97.5   -24
 - tomitankChess 2.0 64-bit           2615  23.0-17.0  (+17-11=12)   97.5   +21
 - Glass 2.0 64-bit                   2610  25.0-15.0  (+19-9 =12)   99.7   +54
 - Monolith 0.4 64-bit                2601  24.0-16.0  (+18-10=12)   99.9   +27
 - Betsabe II 1.84                    2542  22.0-18.0  (+18-14=8 )  100.0   -60
 - Schooner 1.8 64-bit                2519  26.0-14.0  (+21-9 =10)  100.0   -16
 - Orion 0.5 64-bit                   2514  30.0-10.0  (+22-2 =16)  100.0   +33
 - RubiChess 0.9 64-bit               2504  25.0-15.0  (+21-11=8 )  100.0   -44
 - Winter 0.1.1 64-bit                2480  25.0-15.0  (+21-11=8 )  100.0   -70
 - Drosophila 1.5.1 64-bit            2479  27.5-12.5  (+22-7 =11)  100.0   -28
 - Jumbo 0.6.35 64-bit                2467  29.5-10.5  (+25-6 =9 )  100.0    +1


Created in 2005-2013 by CCRL team
Last games added on October 19, 2019