CCRL 40/40
Downloads and Statistics
December 7, 2019
Testing summary:
Total: 1'104'002 games
played by 2'573 programs
150928 CPU days (X2 4600+)

White wins: 382'601 (34.7%)
Black wins: 284'129 (25.7%)
Draws: 437'272 (39.6%)
White score: 54.5%

Engine Details

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Stockfish 1.9.1 64-bit 4CPU (3113+23
−23
)Quote
Authors: Marco Costalba, Joona Kiiski, Stockfish team members Links: Homepage, Development Versions, Testing Framework
Stockfish was originally based on Glaurung by Tord Romstad.
This is one of the 104 Stockfish versions we tested: Compare them!
OpponentEloDiffResultsScoreLOSPerf
–   Houdini 1.5a 64-bit 4CPU3183+18
−18
(+70)16.5 − 32.5
(+4−20=25)
33.7%
16.5 / 49
0.0%
−27
= 0 = 0 0 0 0 = 0 1 0 = = = 0 = 0 0 = = 0 = 0 0 1 0 0 1 0 0 = = = = = = 1 = = 0 0 = 0 = = = = = =
–   Vajolet2 2.7 64-bit 4CPU3178+29
−29
(+65)6.5 − 13.5
(+1−8=11)
32.5%
6.5 / 20
0.0%
−36
= 0 0 = 1 0 0 = 0 0 = 0 = = = = 0 = = =
–   RubiChess 1.5 64-bit 4CPU3164+29
−29
(+51)9.5 − 5.5
(+5−1=9)
63.3%
9.5 / 15
0.4%
+129
= = = 1 = 1 = = 1 0 = = = 1 1
–   Rybka 4 64-bit 4CPU3147+10
−10
(+34)33 − 43
(+15−25=36)
43.4%
33.0 / 76
0.3%
−4
= 0 = 0 0 1 = = 0 1 0 = = = 0 = 0 0 = = = 0 0 = 0 = = 1 = 0 = = = 0 = 1 0 = 1 = = 1 = 1 1 0 = = 0 0 = = 0 1 = = 0 = 1 0 = 1 1 0 1 0 = = 0 1 0 1 0 = = =
–   Rybka 4.1 64-bit 4CPU3144+9
−9
(+31)11.5 − 20.5
(+3−12=17)
35.9%
11.5 / 32
0.7%
−53
= 0 = = = = = = = = = 0 0 0 = = 0 0 1 0 = 1 = 0 = 0 0 = = 0 1 0
–   Arasan 20.4.1 64-bit 4CPU3120+26
−26
(+7)5.5 − 4.5
(+3−2=5)
55.0%
5.5 / 10
34.6%
+37
= 1 0 1 0 1 = = = =
–   Stockfish 1.8 64-bit 4CPU3107+19
−19
(−6)15 − 18
(+3−6=24)
45.5%
15.0 / 33
67.4%
−30
= = = = = = = = = 1 1 = = = 0 1 0 = = 0 = = = = = 0 = = 0 0 = = =
–   Critter 0.90 64-bit 4CPU3078+31
−31
(−35)19.5 − 14.5
(+9−4=21)
57.4%
19.5 / 34
96.9%
+6
1 = = 0 = 1 = 1 1 = = = = 0 1 = 1 = 0 = 1 = 1 1 = = = = = = = = 0 =
–   Naum 4.2 64-bit 4CPU3061+10
−10
(−52)29.5 − 18.5
(+17−6=25)
61.5%
29.5 / 48
100.0%
+16
= = = = = 0 = = 0 = 1 1 0 1 = = = 1 1 1 = 1 1 1 = = = 1 = = 1 1 1 = = 0 = = = 0 = 0 = 1 1 1 1 =
–   Deep Shredder 12 64-bit 4CPU3018+10
−10
(−95)26.5 − 13.5
(+18−5=17)
66.3%
26.5 / 40
100.0%
+7
1 1 = = = 1 1 = = 0 1 = 0 1 0 1 = 0 1 1 1 1 1 = = = = 1 = = 1 1 = 1 = 1 0 1 = =
–   Zappa Mexico II 64-bit 4CPU2969+10
−10
(−144)46.5 − 19.5
(+29−2=35)
70.5%
46.5 / 66
100.0%
−24
1 1 = = 1 1 = 1 = 1 = = 1 1 = = 1 1 = = = 1 1 = 1 = = 1 = 1 1 = 1 = 1 1 1 1 = = = 1 = = 1 = = = = 1 = = = = 1 = 1 = 0 0 = 1 = 1 1 =
–   Deep Sjeng WC2008 64-bit 4CPU2925+12
−12
(−188)52.5 − 14.5
(+40−2=25)
78.4%
52.5 / 67
100.0%
+1
1 = = 1 0 1 = 1 = 1 = 1 = = = 1 = = = = 1 1 1 1 1 1 1 = 1 1 = 1 = = = = = 1 1 1 1 1 1 = = 1 0 1 1 1 1 1 1 1 = 1 = 1 1 1 1 1 1 1 = = 1
–   Thinker 5.4c Inert 64-bit 4CPU2923+15
−15
(−190)63.5 − 12.5
(+52−1=23)
83.6%
63.5 / 76
100.0%
+51
1 1 1 1 1 1 = 1 1 1 1 1 = 1 1 1 1 1 = 1 1 = 1 1 1 1 = 1 1 1 = = = 1 = 1 1 1 = 1 1 = = 1 1 1 = 1 = 1 1 1 = 1 = 1 1 1 1 = 1 1 = 1 = = 1 1 0 1 = 1 = = 1 1
–   Bright 0.5c 4CPU2891+23
−23
(−222)40.5 − 8.5
(+33−1=15)
82.7%
40.5 / 49
100.0%
+11
= 1 = 1 1 1 1 = 1 1 = 1 1 = 1 1 = 1 1 1 1 1 1 1 1 1 1 1 0 1 = 1 = = = 1 1 = 1 1 = 1 = 1 1 1 = 1 =

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Created in 2005-2013 by CCRL team
Last games added on December 7, 2019