CCRL 40/40
Downloads and Statistics
August 17, 2019
Testing summary:
Total: 1'075'629 games
played by 2'520 programs
147029 CPU days (X2 4600+)

White wins: 373'444 (34.7%)
Black wins: 277'846 (25.8%)
Draws: 424'339 (39.5%)
White score: 54.4%

Engine Details

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DoubleCheck 2.5.4 32-bit in CCRL 40/40, 2019-08-17
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:
DoubleCheck 2.5.4 32-bit has no rank with rating of 2382 Elo points (+33 -33),
based on 318 games: 115 wins, 112 losses and 91 draws
Score: 50.5%, Average opponent: −3.2, Draws: 28.6%


Pairwise results:
     Opponent                        Elo     Score                  LOS   Perf
 - GreKo 9.2 32-bit                  2490   2.5-9.5   (+1 -8 =3 )    0.0  -107
 - Arasan 10.4                       2470   2.0-6.0   (+1 -5 =2 )    0.0   -87
 - Trace 1.35                        2463   4.5-5.5   (+3 -4 =3 )    0.0   +45
 - Booot 4.11.1                      2458   2.5-5.5   (+2 -5 =1 )    0.1   -78
 - Twisted Logic 20071202x           2457   6.5-3.5   (+6 -3 =1 )    0.0  +197
 - Cyrano 0.3                        2450   3.5-4.5   (+2 -3 =3 )    0.2   +19
 - Gaviota 0.74.41 32-bit            2446   3.5-4.5   (+2 -3 =3 )    0.3   +26
 - Hussar 0.4                        2443   0.0-4.0   (+0 -4 =0 )    0.1  -INF
 - Arasan 10.1                       2439   4.0-6.0   (+2 -4 =4 )    0.4    -5
 - Murka 2 32-bit                    2432   2.0-2.0   (+2 -2 =0 )    1.4   +50
 - Matacz 1.1                        2419   3.5-4.5   (+2 -3 =3 )    5.6     0
 - Kiwi 0.6d 32-bit                  2418   0.0-2.0   (+0 -2 =0 )    3.2  -INF
 - Dragon 4.6                        2405   1.5-0.5   (+1 -0 =1 )   11.8  +179
 - Eeyore 1.52 32-bit                2405   2.0-2.0   (+1 -1 =2 )   13.7   +23
 - Djinn 0.925x                      2402   1.5-0.5   (+1 -0 =1 )   17.2  +162
 - Atlas 3.14b 32-bit                2400   1.0-3.0   (+0 -2 =2 )   19.5  -124
 - Simplex 0.9.8 32-bit              2396   6.5-7.5   (+5 -6 =3 )   26.6    -9
 - Delphil 1.9f                      2385   5.5-2.5   (+4 -1 =3 )   46.0  +125
 - Dorky 4.3 32-bit                  2385   3.5-0.5   (+3 -0 =1 )   45.3  +291
 - Alfil 7.6                         2376   5.5-2.5   (+3 -0 =5 )   60.7   +98
 - TJchess 1.1 32-bit                2372   5.0-1.0   (+5 -1 =0 )   67.4  +310
 - Ares 1.004                        2372   1.5-2.5   (+1 -2 =1 )   70.3   -95
 - Ifrit m1.5 32-bit                 2371   2.5-3.5   (+1 -2 =3 )   70.8   -63
 - iCE 0.2                           2371  10.5-9.5   (+7 -6 =7 )   72.0    +8
 - Counter 1.0                       2367   4.0-4.0   (+3 -3 =2 )   74.2   -15
 - Pupsi 0.19                        2366   5.0-3.0   (+3 -1 =4 )   75.1   +62
 - Alex 2.14a 32-bit                 2363   1.5-2.5   (+1 -2 =1 )   81.5  -100
 - Flux 2.2.1                        2357   1.0-1.0   (+1 -1 =0 )   90.3   -25
 - BugChess2 1.4.1                   2356   4.0-4.0   (+3 -3 =2 )   86.3   -32
 - Plisk 0.2.7d 32-bit               2349   0.0-2.0   (+0 -2 =0 )   95.1  -INF
 - Tytan 9.32 32-bit                 2346   1.0-1.0   (+0 -0 =2 )   95.2   -36
 - Arion 1.7                         2342   0.0-2.0   (+0 -2 =0 )   98.3  -INF
 - Daydreamer 1.5                    2334   4.0-6.0   (+3 -5 =2 )   99.2  -120
 - Sjakk 1.1.9                       2326  11.5-8.5   (+8 -5 =7 )   99.6   -10
 - LittleThought 1.00 32-bit         2325   4.5-3.5   (+3 -2 =3 )   99.3   -24
 - Dirty 0.99n                       2320   6.0-4.0   (+4 -2 =4 )   99.7    -2
 - ECE 12.01                         2318  11.5-6.5   (+10-5 =3 )   99.9   +36
 - Cheese 1.3b 32-bit                2312   7.5-4.5   (+6 -3 =3 )   99.9   +23
 - Sage 2.2a                         2311   4.0-4.0   (+3 -3 =2 )   99.9   -65
 - GreKo 5.5                         2311   4.5-3.5   (+4 -3 =1 )   99.9   -24
 - nanoSzachy 2.9                    2307   6.0-2.0   (+5 -1 =2 )   99.9  +110
 - Waxman 2011                       2304   3.5-2.5   (+3 -2 =1 )  100.0   -11


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