CCRL 40/15
Downloads and Statistics
April 17, 2021
Testing summary:
Total: 1'237'141 games
played by 2'823 programs

White wins: 424'144 (34.3%)
Black wins: 311'632 (25.2%)
Draws: 501'365 (40.5%)
White score: 54.5%

Engine Details

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Stockfish 2021-01-11 64-bit (3519+19
−18
)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
–   Fat Fritz 2 (in SF) 64-bit3509+16
−16
(−10)27 − 25
(+4−2=46)
51.9%
27.0 / 52
79.9%
0
–   Dragon by Komodo 64-bit3472+15
−15
(−47)27.5 − 22.5
(+6−1=43)
55.0%
27.5 / 50
100.0%
−22
–   Houdini 6 64-bit 4CPU3397+10
−10
(−122)21 − 9
(+13−1=16)
70.0%
21.0 / 30
100.0%
−2
–   SlowChess Blitz 2.5 64-bit 4CPU3396+18
−18
(−123)20.5 − 9.5
(+12−1=17)
68.3%
20.5 / 30
100.0%
−16
–   Ethereal 12.75 64-bit 4CPU3391+15
−15
(−128)20 − 10
(+10−0=20)
66.7%
20.0 / 30
100.0%
−37
–   Nemorino 6.00 64-bit 4CPU3383+17
−17
(−136)19.5 − 10.5
(+9−0=21)
65.0%
19.5 / 30
100.0%
−55
–   Nemorino 6.00 64-bit3343+13
−13
(−176)37.5 − 12.5
(+25−0=25)
75.0%
37.5 / 50
100.0%
−21
–   Houdini 6 64-bit3335+8
−8
(−184)42.5 − 7.5
(+35−0=15)
85.0%
42.5 / 50
100.0%
+69
–   SlowChess Blitz 2.5 64-bit3329+16
−16
(−190)41 − 9
(+32−0=18)
82.0%
41.0 / 50
100.0%
+26
–   Fire 8 64-bit3328+17
−17
(−191)39 − 13
(+26−0=26)
75.0%
39.0 / 52
100.0%
−39
–   Ethereal 12.75 64-bit3320+13
−13
(−199)37 − 11
(+26−0=22)
77.1%
37.0 / 48
100.0%
−28
–   Igel 3.0.0 64-bit3316+46
−46
(−203)8 − 2
(+6−0=4)
80.0%
8.0 / 10
100.0%
−6
–   SlowChess Blitz 2.4 64-bit3302+16
−16
(−217)42.5 − 7.5
(+35−0=15)
85.0%
42.5 / 50
100.0%
+37
–   Nemorino 6.05 64-bit3289+18
−18
(−230)39.5 − 12.5
(+28−1=23)
76.0%
39.5 / 52
100.0%
−64
–   RubiChess 2.0 NN-375bd 64-bit3277+16
−16
(−242)41.5 − 10.5
(+31−0=21)
79.8%
41.5 / 52
100.0%
−45
–   Igel 2.9.0 64-bit3271+15
−15
(−248)43 − 7
(+36−0=14)
86.0%
43.0 / 50
100.0%
+15
–   Ethereal 11.75 64-bit3260+15
−15
(−259)47 − 5
(+42−0=10)
90.4%
47.0 / 52
100.0%
+76
–   Fire 7.1 64-bit3257+7
−8
(−262)45.5 − 6.5
(+39−0=13)
87.5%
45.5 / 52
100.0%
+27
–   Booot 6.5 64-bit3255+18
−18
(−264)42.5 − 7.5
(+35−0=15)
85.0%
42.5 / 50
100.0%
−10
–   Xiphos 0.6 64-bit3253+9
−9
(−266)45 − 5
(+40−0=10)
90.0%
45.0 / 50
100.0%
+62
–   RofChade 2.3 64-bit3240+11
−11
(−279)48 − 4
(+44−0=8)
92.3%
48.0 / 52
100.0%
+97
–   Booot 6.4 64-bit3238+11
−11
(−281)46.5 − 5.5
(+41−0=11)
89.4%
46.5 / 52
100.0%
+37
–   Laser 1.7 64-bit3206+9
−9
(−313)47.5 − 4.5
(+43−0=9)
91.3%
47.5 / 52
100.0%
+42
–   Schooner 2.2 64-bit3202+10
−10
(−317)46 − 6
(+40−0=12)
88.5%
46.0 / 52
100.0%
−13

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Created in 2005-2013 by CCRL team
Last games added on April 17, 2021