CCRL 40/40
Downloads and Statistics
November 18, 2017
Testing summary:
Total: 756'425 games
played by 1'967 programs
103446 CPU days (X2 4600+)

White wins: 259'856 (34.4%)
Black wins: 192'693 (25.5%)
Draws: 303'876 (40.2%)
White score: 54.4%

Engine Details

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NirvanaChess 2.0a 64-bit 4CPU in CCRL 40/40, 2017-11-18
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, 2005-2017, http://computerchess.org.uk/ccrl/4040/

CCRL 40/40 main list:
NirvanaChess 2.0a 64-bit 4CPU has no rank with rating of 3064 Elo points (+30 -30),
based on 337 games: 66 wins, 102 losses and 169 draws
Score: 44.7%, Average opponent: +35.8, Draws: 50.1%


Pairwise results:
     Opponent                        Elo     Score                  LOS   Perf
 - Stockfish 6 64-bit 4CPU           3300   7.5-42.5  (+0 -35=15)    0.0   -16
 - Fire 4 64-bit 4CPU                3207   1.0-3.0   (+0 -2 =2 )    0.0    -6
 - Gull 3 64-bit 4CPU                3191   2.0-2.0   (+1 -1 =2 )    0.0  +127
 - Equinox 3.30 64-bit 4CPU          3169   2.0-2.0   (+1 -1 =2 )    0.0  +105
 - Rybka 4.1 64-bit 4CPU             3151   0.5-3.5   (+0 -3 =1 )    0.0  -195
 - Sting SF 4.8.4 64-bit 4CPU        3140   2.0-4.0   (+1 -3 =2 )    0.0   -36
 - Elektro 1.2 64-bit 4CPU           3127   1.5-2.5   (+0 -1 =3 )    0.0    +3
 - Hannibal 1.5 64-bit 4CPU          3118  12.5-17.5  (+5 -10=15)    0.1    +4
 - Naum 4.6 64-bit 4CPU              3104  11.0-14.0  (+3 -6 =16)    0.8    +7
 - Texel 1.05 64-bit 4CPU            3093  22.5-23.5  (+9 -10=27)    4.5   +22
 - Chiron 2 64-bit 4CPU              3093   2.5-3.5   (+1 -2 =3 )    4.1   -16
 - Hannibal 1.4b 64-bit 4CPU         3085   6.5-10.5  (+1 -5 =11)   10.7   -42
 - Critter 0.90 64-bit 4CPU          3085   0.0-2.0   (+0 -2 =0 )   17.5  -INF
 - Protector 1.7.0 64-bit 4CPU       3083  10.5-10.5  (+4 -4 =13)   14.1   +20
 - Hiarcs 14 4CPU                    3061   1.0-5.0   (+0 -4 =2 )   57.2  -234
 - Deep Junior Yokohama 64-bit 4CPU  3033   2.5-3.5   (+0 -1 =5 )   96.3   -68
 - Senpai 1.0 64-bit 4CPU            3032  13.0-9.0   (+7 -3 =12)   96.6   +21
 - Spike 1.4 Leiden 4CPU             3024  11.5-10.5  (+3 -2 =17)   99.2   -29
 - Deep Shredder 12 64-bit 4CPU      3024   3.0-3.0   (+2 -2 =2 )   99.3   -40
 - Rybka 2.3.2a 64-bit 4CPU          3021   1.5-0.5   (+1 -0 =1 )   99.4  +113
 - Cheng4 0.38 64-bit 4CPU           2987  24.0-10.0  (+19-5 =10)  100.0   +67
 - Fizbo 1.31 64-bit 4CPU            2961   1.5-0.5   (+1 -0 =1 )  100.0   +53
 - Tornado 6.0 64-bit 4CPU           2902  10.5-3.5   (+7 -0 =7 )  100.0    -9


Created in 2005-2013 by CCRL team
Last games added on November 18, 2017