CCRL 40/15
Downloads and Statistics
April 12, 2021
Testing summary:
Total: 1'235'231 games
played by 2'819 programs

White wins: 423'584 (34.3%)
Black wins: 311'244 (25.2%)
Draws: 500'403 (40.5%)
White score: 54.5%

Engine Details

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Stockfish 2021-01-11 64-bit (3520+19
−19		)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 124 Stockfish versions we tested: Compare them!
OpponentEloDiffResultsScoreLOSPerf
–   Fat Fritz 2 (in SF) 64-bit3509+16
−16		(−11)27 − 25
(+4−2=46)
51.9%
27.0 / 52
80.5%
−1
= 1 = = = = = = = = 0 = = = = = = 1 = = = = 0 = = = = = = 1 = = = = = = = = = = = 1 = = = = = = = = = =
–   Dragon by Komodo 64-bit3472+15
−15		(−48)27.5 − 22.5
(+6−1=43)
55.0%
27.5 / 50
100.0%
−23
= = = = = = 1 = = 1 = = = = = = = = = = 1 = = 0 = = = = = = 1 = = = = = = = 1 = = = = = 1 = = = = =
–   Houdini 6 64-bit 4CPU3398+10
−10		(−122)21 − 9
(+13−1=16)
70.0%
21.0 / 30
100.0%
−2
1 = 1 = = = 1 = 1 1 = = = 1 1 = = 1 1 = = 0 1 = 1 = 1 = 1 =
–   SlowChess Blitz 2.5 64-bit 4CPU3397+18
−18		(−123)20.5 − 9.5
(+12−1=17)
68.3%
20.5 / 30
100.0%
−16
1 = = = = 1 = = 1 = 1 = = = 1 0 = 1 1 = 1 = 1 = 1 = = 1 1 =
–   Ethereal 12.75 64-bit 4CPU3393+16
−16		(−127)20 − 10
(+10−0=20)
66.7%
20.0 / 30
100.0%
−36
1 = = = = 1 = = = = = = 1 = 1 = = = 1 = 1 1 = 1 = 1 = = 1 =
–   Nemorino 6.00 64-bit 4CPU3384+17
−17		(−136)19.5 − 10.5
(+9−0=21)
65.0%
19.5 / 30
100.0%
−55
= = = 1 = = 1 = = = 1 = 1 = = = 1 = = = = 1 = 1 = = 1 = 1 =
–   Nemorino 6.00 64-bit3341+13
−13		(−179)37.5 − 12.5
(+25−0=25)
75.0%
37.5 / 50
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 = = =
–   Houdini 6 64-bit3335+8
−8		(−185)42.5 − 7.5
(+35−0=15)
85.0%
42.5 / 50
100.0%
+68
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 =
–   SlowChess Blitz 2.5 64-bit3331+17
−17		(−189)41 − 9
(+32−0=18)
82.0%
41.0 / 50
100.0%
+27
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		(−192)39 − 13
(+26−0=26)
75.0%
39.0 / 52
100.0%
−40
= 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 12.75 64-bit3320+13
−13		(−200)37 − 11
(+26−0=22)
77.1%
37.0 / 48
100.0%
−29
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-bit3302+16
−16		(−218)42.5 − 7.5
(+35−0=15)
85.0%
42.5 / 50
100.0%
+36
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-bit3289+18
−18		(−231)39.5 − 12.5
(+28−1=23)
76.0%
39.5 / 52
100.0%
−65
= = 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
–   RubiChess 2.0 NN-375bd 64-bit3277+16
−16		(−243)41.5 − 10.5
(+31−0=21)
79.8%
41.5 / 52
100.0%
−46
= 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-bit3272+15
−15		(−248)43 − 7
(+36−0=14)
86.0%
43.0 / 50
100.0%
+15
= = 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-bit3261+15
−15		(−259)47 − 5
(+42−0=10)
90.4%
47.0 / 52
100.0%
+76
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-bit3258+7
−8		(−262)45.5 − 6.5
(+39−0=13)
87.5%
45.5 / 52
100.0%
+27
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-bit3255+18
−18		(−265)42.5 − 7.5
(+35−0=15)
85.0%
42.5 / 50
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 1 1 1 1 1 1 1 1 1 = 1 1 = = 1 1 = =
–   Xiphos 0.6 64-bit3253+9
−9		(−267)45 − 5
(+40−0=10)
90.0%
45.0 / 50
100.0%
+61
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-bit3240+11
−11		(−280)48 − 4
(+44−0=8)
92.3%
48.0 / 52
100.0%
+96
= 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-bit3238+11
−11		(−282)46.5 − 5.5
(+41−0=11)
89.4%
46.5 / 52
100.0%
+36
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-bit3206+8
−9		(−314)47.5 − 4.5
(+43−0=9)
91.3%
47.5 / 52
100.0%
+41
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-bit3202+10
−10		(−318)46 − 6
(+40−0=12)
88.5%
46.0 / 52
100.0%
−14
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 =
1088 games: 652 wins, 6 losses, 430 draws (39.5%), score: 79.7%

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Created in 2005-2013 by CCRL team
Last games added on April 12, 2021