CCRL 40/15
Downloads and Statistics
May 8, 2021
Testing summary:
Total: 1'242'291 games
played by 2'843 programs

White wins: 425'658 (34.3%)
Black wins: 312'703 (25.2%)
Draws: 503'930 (40.6%)
White score: 54.5%

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Stockfish 2021-01-11 64-bit (3513+18
−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-bit3507+16
−15
(−6)27 − 25
(+4−2=46)
51.9%
27.0 / 52
66.9%
+3
= 1 = = = = = = = = 0 = = = = = = 1 = = = = 0 = = = = = = 1 = = = = = = = = = = = 1 = = = = = = = = = =
–   Dragon by Komodo 2 64-bit3485+74
−71
(−28)2 − 2
(+0−0=4)
50.0%
2.0 / 4
76.7%
−28
= = = =
–   Dragon by Komodo 64-bit3471+14
−14
(−42)27.5 − 22.5
(+6−1=43)
55.0%
27.5 / 50
100.0%
−17
= = = = = = 1 = = 1 = = = = = = = = = = 1 = = 0 = = = = = = 1 = = = = = = = 1 = = = = = 1 = = = = =
–   Houdini 6 64-bit 4CPU3397+10
−10
(−116)21 − 9
(+13−1=16)
70.0%
21.0 / 30
100.0%
+3
1 = 1 = = = 1 = 1 1 = = = 1 1 = = 1 1 = = 0 1 = 1 = 1 = 1 =
–   SlowChess Blitz 2.5 64-bit 4CPU3394+18
−18
(−119)20.5 − 9.5
(+12−1=17)
68.3%
20.5 / 30
100.0%
−12
1 = = = = 1 = = 1 = 1 = = = 1 0 = 1 1 = 1 = 1 = 1 = = 1 1 =
–   Ethereal 12.75 64-bit 4CPU3390+15
−15
(−123)20 − 10
(+10−0=20)
66.7%
20.0 / 30
100.0%
−32
1 = = = = 1 = = = = = = 1 = 1 = = = 1 = 1 1 = 1 = 1 = = 1 =
–   Nemorino 6.00 64-bit 4CPU3382+17
−17
(−131)19.5 − 10.5
(+9−0=21)
65.0%
19.5 / 30
100.0%
−50
= = = 1 = = 1 = = = 1 = 1 = = = 1 = = = = 1 = 1 = = 1 = 1 =
–   Pedone 3.1 64-bit3348+59
−60
(−165)3 − 1
(+2−0=2)
75.0%
3.0 / 4
100.0%
−10
= 1 = 1
–   Nemorino 6.00 64-bit3342+12
−12
(−171)37.5 − 12.5
(+25−0=25)
75.0%
37.5 / 50
100.0%
−16
= = 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 = = =
–   Houdini 6 64-bit3334+7
−8
(−179)42.5 − 7.5
(+35−0=15)
85.0%
42.5 / 50
100.0%
+74
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 =
–   RubiChess 2.1 64-bit3333+25
−25
(−180)25 − 11
(+14−0=22)
69.4%
25.0 / 36
100.0%
−69
1 = = 1 = = = 1 = 1 = 1 1 = = = = 1 = = = 1 1 1 = = = 1 = 1 = 1 1 = = =
–   SlowChess Blitz 2.5 64-bit3329+16
−16
(−184)41 − 9
(+32−0=18)
82.0%
41.0 / 50
100.0%
+32
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 = = = = = = = = =
–   Fire 8 64-bit3328+17
−17
(−185)39 − 13
(+26−0=26)
75.0%
39.0 / 52
100.0%
−33
= = = 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
–   Igel 3.0.0 64-bit3320+20
−20
(−193)38 − 14
(+24−0=28)
73.1%
38.0 / 52
100.0%
−56
= = = 1 = = 1 = 1 = 1 1 = 1 = = = = = 1 = 1 1 1 = 1 = 1 1 1 = = = 1 1 1 1 1 = 1 = = = = = 1 1 1 = 1 = =
–   Ethereal 12.75 64-bit3319+12
−12
(−194)37 − 11
(+26−0=22)
77.1%
37.0 / 48
100.0%
−23
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 =
–   SlowChess Blitz 2.4 64-bit3301+16
−16
(−212)42.5 − 7.5
(+35−0=15)
85.0%
42.5 / 50
100.0%
+42
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
–   Nemorino 6.05 64-bit3288+18
−18
(−225)39.5 − 12.5
(+28−1=23)
76.0%
39.5 / 52
100.0%
−59
= 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 1 1 = = 1 = 1
–   RubiChess 2.0 64-bit3278+16
−16
(−235)41.5 − 10.5
(+31−0=21)
79.8%
41.5 / 52
100.0%
−38
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 =
–   Igel 2.9.0 64-bit3271+15
−15
(−242)43 − 7
(+36−0=14)
86.0%
43.0 / 50
100.0%
+21
= = 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
–   Ethereal 11.75 64-bit3259+15
−15
(−254)47 − 5
(+42−0=10)
90.4%
47.0 / 52
100.0%
+81
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
–   Fire 7.1 64-bit3257+7
−8
(−256)45.5 − 6.5
(+39−0=13)
87.5%
45.5 / 52
100.0%
+33
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
–   Booot 6.5 64-bit3257+17
−17
(−256)42.5 − 7.5
(+35−0=15)
85.0%
42.5 / 50
100.0%
−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 = =
–   Xiphos 0.6 64-bit3252+9
−9
(−261)45 − 5
(+40−0=10)
90.0%
45.0 / 50
100.0%
+67
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 =
–   RofChade 2.3 64-bit3239+11
−11
(−274)48 − 4
(+44−0=8)
92.3%
48.0 / 52
100.0%
+102
= 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 =
–   Booot 6.4 64-bit3237+11
−11
(−276)46.5 − 5.5
(+41−0=11)
89.4%
46.5 / 52
100.0%
+42
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
–   Laser 1.7 64-bit3205+9
−9
(−308)47.5 − 4.5
(+43−0=9)
91.3%
47.5 / 52
100.0%
+47
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
–   Schooner 2.2 64-bit3201+10
−10
(−312)46 − 6
(+40−0=12)
88.5%
46.0 / 52
100.0%
−8
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 =

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Created in 2005-2013 by CCRL team
Last games added on May 8, 2021