CCRL 40/40
Downloads and Statistics
February 17, 2018
Testing summary:
Total: 795'341 games
played by 2'045 programs
110322 CPU days (X2 4600+)

White wins: 272'710 (34.3%)
Black wins: 201'857 (25.4%)
Draws: 320'774 (40.3%)
White score: 54.5%

Engine Details

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K2 0.71 in CCRL 40/40, 2018-02-17
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, 2005-2018, http://computerchess.org.uk/ccrl/4040/

CCRL 40/40 main list:
K2 0.71 has no rank with rating of 2421 Elo points (+29 -28),
based on 425 games: 165 wins, 142 losses and 118 draws
Score: 52.7%, Average opponent: −19.0, Draws: 27.8%


Pairwise results:
     Opponent                         Elo     Score                  LOS   Perf
 - Carballo 1.4 64-bit                2520   3.0-5.0   (+2 -4 =2 )    0.0   +10
 - AnMon 5.60                         2513   2.5-7.5   (+1 -6 =3 )    0.0   -79
 - Pepito 1.59 64-bit                 2494   4.0-6.0   (+3 -5 =2 )    0.0    -2
 - JikChess 0.01 64-bit               2486   7.5-2.5   (+7 -2 =1 )    0.0  +274
 - Arasan 10.2 32-bit                 2484   4.0-6.0   (+3 -5 =2 )    0.1   -15
 - Ghost 2.0.2 64-bit                 2483   4.0-10.0  (+3 -9 =2 )    0.0  -110
 - Delphil 2.9a                       2480   4.5-5.5   (+2 -3 =5 )    0.2   +23
 - Zurichess Geneva 64-bit            2478   3.5-4.5   (+2 -3 =3 )    0.2   +19
 - Pawny 0.3.1 64-bit                 2475   3.5-6.5   (+2 -5 =3 )    0.2   -52
 - Trace 1.37a                        2468   0.0-1.0   (+0 -1 =0 )    0.3  -INF
 - Carballo 1.2                       2447   5.5-4.5   (+4 -3 =3 )    9.0   +57
 - Bumblebee 1.0.36898e1 64-bit       2444   4.5-5.5   (+4 -5 =1 )    9.4   -13
 - Hussar 0.4                         2444   0.5-0.5   (+0 -0 =1 )    8.6    -7
 - Betsabe II 1.47                    2440   6.0-13.0  (+3 -10=6 )   13.1  -105
 - Abrok 5.0                          2434   1.5-8.5   (+1 -8 =1 )   24.2  -297
 - Snitch 1.6.2 64-bit                2433   5.0-5.0   (+4 -4 =2 )   25.5   +12
 - Ares 1.005 64-bit                  2415   6.0-9.0   (+2 -5 =8 )   63.3   -64
 - Shallow r688 64-bit                2411  10.5-7.5   (+7 -4 =7 )   72.5   +43
 - Ares 1.005.2 64-bit                2408   5.0-5.0   (+3 -3 =4 )   76.8   -17
 - Simplex 0.9.8 64-bit               2402   4.5-5.5   (+4 -5 =1 )   85.9   -55
 - Gaia 3.5 64-bit                    2400   5.5-5.5   (+4 -4 =3 )   86.1   -16
 - Tigran 2.4n 64-bit                 2393  11.5-6.5   (+9 -4 =5 )   95.0   +67
 - Alex 2.14a 64-bit                  2393   7.0-3.0   (+5 -1 =4 )   94.9   +99
 - Maverick 0.60 64-bit               2392   2.5-3.5   (+1 -2 =3 )   90.8   -68
 - Waxman 2014                        2388   0.0-4.0   (+0 -4 =0 )   96.6  -INF
 - Sorgenkind 0.4                     2387   6.0-4.0   (+5 -3 =2 )   98.1   +38
 - Myrddin 0.87 64-bit                2381   2.5-1.5   (+1 -0 =3 )   99.1   +19
 - Rotor 0.3                          2380   5.5-4.5   (+3 -2 =5 )   96.9    -9
 - OliThink 5.3.2 64-bit              2374   7.0-3.0   (+6 -2 =2 )   99.7  +102
 - Carballo 1.1.1                     2372   6.5-3.5   (+5 -2 =3 )   98.8   +60
 - iCE 0.2                            2371   6.0-4.0   (+4 -2 =4 )   99.8   +16
 - Tytan 9.32 64-bit                  2368   6.5-3.5   (+5 -2 =3 )   99.5   +56
 - Donna 1.0 64-bit                   2353   6.0-2.0   (+5 -1 =2 )   99.9  +110
 - Jazz 840 64-bit                    2346   2.0-2.0   (+2 -2 =0 )  100.0   -75
 - Typhoon 1.00-358 64-bit            2344   8.0-2.0   (+7 -1 =2 )  100.0  +151
 - Maverick 0.51 64-bit               2336   9.0-5.0   (+7 -3 =4 )  100.0    +9
 - CyberPagno 2.2 64-bit              2333   9.5-8.5   (+7 -6 =5 )  100.0   -70
 - Gibbon 2.60a 64-bit                2330   3.0-1.0   (+3 -1 =0 )  100.0  +135
 - Nemeton 1.1                        2328   9.0-9.0   (+8 -8 =2 )  100.0   -89
 - Bagatur 1.3a 64-bit                2325   7.5-2.5   (+5 -0 =5 )  100.0   +55
 - Nemeton 1.2                        2306   3.5-0.5   (+3 -0 =1 )  100.0  +167
 - pikoSzachy Extreme                 2306   3.0-1.0   (+3 -1 =0 )  100.0  +110
 - FireFly 2.7.0 64-bit               2285   3.5-0.5   (+3 -0 =1 )  100.0  +153
 - Lozza 1.14a 64-bit                 2243   8.0-2.0   (+7 -1 =2 )  100.0   +51


Created in 2005-2013 by CCRL team
Last games added on February 17, 2018