CCRL 40/15
Downloads and Statistics
May 15, 2021
Testing summary:
Total: 1'244'261 games
played by 2'847 programs

White wins: 426'196 (34.3%)
Black wins: 313'011 (25.2%)
Draws: 505'054 (40.6%)
White score: 54.5%

Engine Details

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Stockfish 1.9.1 64-bit 4CPU (3115+22
−22
)Quote
Authors: Marco Costalba, Joona Kiiski, Stockfish team members Links: List of Authors, Homepage, Development Versions, Testing Framework
Stockfish was originally based on Glaurung by Tord Romstad.
This is one of the 123 Stockfish versions we tested: Compare them!
OpponentEloDiffResultsScoreLOSPerf
–   Arasan 22.2 64-bit 4CPU3230+28
−28
(+115)5.5 − 10.5
(+1−6=9)
34.4%
5.5 / 16
0.0%
+25
–   NirvanaChess 2.5 64-bit 4CPU3215+33
−33
(+100)6 − 10
(+1−5=10)
37.5%
6.0 / 16
0.0%
+31
–   Houdini 1.5a 64-bit 4CPU3181+17
−17
(+66)16.5 − 32.5
(+4−20=25)
33.7%
16.5 / 49
0.0%
−31
–   Vajolet2 2.7 64-bit 4CPU3181+24
−24
(+66)6.5 − 13.5
(+1−8=11)
32.5%
6.5 / 20
0.0%
−35
–   RubiChess 1.5 64-bit 4CPU3161+29
−29
(+46)9.5 − 5.5
(+5−1=9)
63.3%
9.5 / 15
0.6%
+124
–   Rybka 4 64-bit 4CPU3146+10
−10
(+31)33 − 43
(+15−25=36)
43.4%
33.0 / 76
0.5%
−7
–   Rybka 4.1 64-bit 4CPU3143+9
−9
(+28)11.5 − 20.5
(+3−12=17)
35.9%
11.5 / 32
0.9%
−56
–   Arasan 20.4.1 64-bit 4CPU3118+26
−26
(+3)5.5 − 4.5
(+3−2=5)
55.0%
5.5 / 10
41.8%
+33
–   Stockfish 1.8 64-bit 4CPU3107+18
−18
(−8)15 − 18
(+3−6=24)
45.5%
15.0 / 33
71.0%
−32
–   Winter 0.7 64-bit 4CPU3106+25
−26
(−9)13 − 11
(+8−6=10)
54.2%
13.0 / 24
69.3%
+18
–   Critter 0.90 64-bit 4CPU3077+31
−31
(−38)19.5 − 14.5
(+9−4=21)
57.4%
19.5 / 34
97.9%
+3
–   Naum 4.2 64-bit 4CPU3060+10
−10
(−55)29.5 − 18.5
(+17−6=25)
61.5%
29.5 / 48
100.0%
+13
–   Deep Shredder 12 64-bit 4CPU3016+10
−10
(−99)26.5 − 13.5
(+18−5=17)
66.3%
26.5 / 40
100.0%
+3
–   Zappa Mexico II 64-bit 4CPU2968+10
−10
(−147)46.5 − 19.5
(+29−2=35)
70.5%
46.5 / 66
100.0%
−27
–   Deep Sjeng WC2008 64-bit 4CPU2924+13
−13
(−191)52.5 − 14.5
(+40−2=25)
78.4%
52.5 / 67
100.0%
−1
–   Thinker 5.4c Inert 64-bit 4CPU2922+15
−15
(−193)63.5 − 12.5
(+52−1=23)
83.6%
63.5 / 76
100.0%
+48
–   Bright 0.5c 4CPU2890+23
−23
(−225)40.5 − 8.5
(+33−1=15)
82.7%
40.5 / 49
100.0%
+8

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Created in 2005-2013 by CCRL team
Last games added on May 15, 2021