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 2.4 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 2.4 64-bit 4CPU is #10 with rating of 3203 Elo points (+23 -23),
based on 552 games: 50 wins, 181 losses and 321 draws
Score: 38.1%, Average opponent: +73.3, Draws: 58.2%


Pairwise results:
     Opponent                        Elo     Score                  LOS   Perf
 - SugaR XPrO 1.2 64-bit 4CPU        3411   4.5-27.5  (+0 -23=9 )    0.0   -58
 - Houdini 6 64-bit 4CPU             3406   7.5-24.5  (+0 -17=15)    0.0   +41
 - SugaR XPrO 1.3 64-bit 4CPU        3394   5.0-9.0   (+0 -4 =10)    0.0  +119
 - Komodo 11.2 64-bit 4CPU           3394   7.0-25.0  (+0 -18=14)    0.0   +11
 - Stockfish 8 64-bit 4CPU           3388   9.5-22.5  (+0 -13=19)    0.0   +71
 - Houdini 5.01 64-bit 4CPU          3382   9.5-22.5  (+0 -13=19)    0.0   +63
 - Deep Shredder 13 64-bit 4CPU      3293  11.5-20.5  (+4 -13=15)    0.0    +4
 - Fire 6.1 64-bit 4CPU              3286  10.5-15.5  (+1 -6 =19)    0.0   +32
 - Fire 5 64-bit 4CPU                3275  11.5-20.5  (+3 -12=17)    0.0   -11
 - Fizbo 1.9 64-bit 4CPU             3264  10.0-22.0  (+2 -14=16)    0.0   -52
 - Andscacs 0.91 64-bit 4CPU         3239  13.5-18.5  (+4 -9 =19)    1.1    -6
 - Andscacs 0.89 64-bit 4CPU         3232  15.0-17.0  (+5 -7 =20)    2.8   +12
 - Booot 6.2 64-bit 4CPU             3222  14.0-18.0  (+2 -6 =24)   10.0   -13
 - Chiron 4 64-bit 4CPU              3204  15.0-17.0  (+5 -7 =20)   48.6   -17
 - Gull 3 64-bit 4CPU                3191  14.5-17.5  (+4 -7 =21)   81.4   -37
 - Equinox 3.20 64-bit 4CPU          3185  14.5-17.5  (+4 -7 =21)   91.2   -44
 - Critter 1.6a 64-bit 4CPU          3168  17.0-15.0  (+5 -3 =24)   99.7   -20
 - Strelka 5.5 64-bit                3107  20.5-11.5  (+11-2 =19)  100.0   -13


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