CCRL 40/4
Downloads and Statistics
June 15, 2019
Testing summary:
Total: 2'051'440 games
played by 2'369 programs
27518 CPU days (X2 4600+)

White wins: 797'129 (38.9%)
Black wins: 645'243 (31.5%)
Draws: 609'068 (29.7%)
White score: 53.7%

Engine Details

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Counter 2.5 64-bit in CCRL 40/4, 2019-06-15
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:
Counter 2.5 64-bit has no rank with rating of 2576 Elo points (+21 -21),
based on 775 games: 249 wins, 291 losses and 235 draws
Score: 47.3%, Average opponent: +20.3, Draws: 30.3%


Pairwise results:
     Opponent                         Elo     Score                  LOS   Perf
 - WyldChess 1.51 64-bit              2631  12.5-19.5  (+10-17=5 )    0.0   -29
 - WildCat 8                          2623  21.5-10.5  (+18-7 =7 )    0.0  +176
 - Movei 00.8.438 (10 10 10)          2623  15.0-17.0  (+10-12=10)    0.0   +24
 - Philou 3.7.1 64-bit                2620  15.5-16.5  (+10-11=11)    0.0   +34
 - Slow Chess Blitz WV2.1             2615  15.5-16.5  (+10-11=11)    0.0   +29
 - Rotor 0.8                          2613   9.0-22.0  (+5 -18=8 )    0.1  -114
 - Ruffian 2.1.0                      2610  19.0-13.0  (+14-8 =10)    0.2   +99
 - Glass 2.0 64-bit                   2609  11.5-20.5  (+8 -17=7 )    0.2   -71
 - Jellyfish 1.1 64-bit               2608  17.5-14.5  (+12-9 =11)    0.4   +65
 - GarboChess 2.20 64-bit             2606  14.5-17.5  (+10-13=9 )    0.6    -4
 - GreKo 2018.01 64-bit               2605  15.5-14.5  (+12-11=7 )    2.1   +43
 - Pharaon 3.5.1                      2604  11.5-20.5  (+5 -14=13)    0.7   -63
 - Amyan 1.72                         2604  11.5-17.5  (+9 -15=5 )    0.7   -50
 - DanaSah 7.0                        2598  10.5-18.5  (+6 -14=9 )    5.1   -72
 - N2 0.4 64-bit                      2590  12.0-17.0  (+6 -11=12)   11.9   -44
 - K2 0.87                            2586  14.0-14.0  (+11-11=6 )   23.1   +10
 - Floyd 0.9 64-bit                   2585  21.0-10.0  (+18-7 =6 )   23.2  +139
 - Muse 0.953 64-bit                  2582  15.5-13.5  (+12-10=7 )   32.9   +28
 - Francesca MAD 0.19                 2581  15.0-12.0  (+9 -6 =12)   35.1   +36
 - Hamsters 0.7.1                     2579  11.5-17.5  (+5 -11=13)   41.2   -60
 - Pseudo 0.7c                        2576  10.0-18.0  (+6 -14=8 )   53.3   -97
 - SOS 5.1                            2575  14.0-15.0  (+9 -10=10)   56.2   -11
 - Maverick 1.5 64-bit                2567  17.0-11.0  (+12-6 =10)   78.2   +59
 - Aristarch 4.50                     2566  13.0-12.0  (+8 -7 =10)   82.8    -1
 - nanoSzachy 4.1 64-bit              2558  10.5-14.5  (+6 -10=9 )   93.0   -71
 - Brutus 8.05 64-bit                 2556  12.5-15.5  (+8 -11=9 )   96.3   -58


Created in 2005-2013 by CCRL team
Last games added on June 15, 2019