CCRL 40/15
Downloads and Statistics
April 10, 2021
Testing summary:
Total: 1'235'065 games
played by 2'819 programs

White wins: 423'539 (34.3%)
Black wins: 311'222 (25.2%)
Draws: 500'304 (40.5%)
White score: 54.5%

Engine Details

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Stockfish 13 64-bit (3509+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. On our 40/15 list, this includes a small number of games from the development version of 2021-02-16. We tested this version, which subsequently had no further functional changes to it and essentially became Stockfish 13.
This is one of the 124 Stockfish versions we tested: Compare them!
OpponentEloDiffResultsScoreLOSPerf
–   Fat Fritz 2 (in SF) 64-bit3509+16
−16		(0)40.5 − 41.5
(+1−2=79)
49.4%
40.5 / 82
49.9%
−2
= = = = = = = = = = = = = = = = = = = = 1 = = = = = = = = 0 = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = 0 = = = = = = = = = = = = = = =
–   SugaR AI 1.00 64-bit3493+18
−17		(−16)26 − 26
(+0−0=52)
50.0%
26.0 / 52
90.0%
−16
= = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = =
–   ShashChess 15.0 64-bit3485+14
−14		(−24)40 − 38
(+2−0=76)
51.3%
40.0 / 78
98.1%
−17
= = = = = = = = = = 1 = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = = 1 = = = = = = = = = = = = = = = = = = = = = = = = =
–   SugaR AI 1.50 64-bit3484+83
−77		(−25)2 − 2
(+0−0=4)		50.0%
2.0 / 4
73.0%
−25
= = = =
–   Dragon by Komodo 64-bit3472+15
−15		(−37)46.5 − 37.5
(+11−2=71)
55.4%
46.5 / 84
99.9%
−10
= = 1 = = = = = = = = = = = = = = 0 = = = = = = 1 0 = = = = 1 = = = = = = = = = = = 1 = = = = = = = = = = = = = = = 1 = = 1 1 = = = 1 = = = = 1 = = 1 = = = = = 1 = = =
–   ShashChess 16 64-bit3442+83
−79		(−67)2 − 2
(+0−0=4)		50.0%
2.0 / 4
94.5%
−67
= = = =
–   Nemorino 6.00 64-bit3341+13
−13		(−168)13.5 − 4.5
(+9−0=9)		75.0%
13.5 / 18
100.0%
−16
1 = 1 = = 1 1 = = 1 = 1 1 = = = 1 1
–   Houdini 6 64-bit3335+8
−8		(−174)57 − 13
(+44−0=26)
81.4%
57.0 / 70
100.0%
+37
1 = 1 1 1 = 1 = 1 = 1 = = = 1 = = = 1 1 1 = 1 1 = 1 1 1 = = 1 1 1 1 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		(−178)39.5 − 16.5
(+25−2=29)
70.5%
39.5 / 56
100.0%
−54
= = = = = = 1 1 1 1 1 = 1 = = = 0 = 1 = 1 = = 1 1 = 1 = 1 = = = 1 = = = 0 = 1 1 1 1 = 1 = = 1 1 1 1 = 1 = 1 = 1
–   Fire 8 64-bit3328+17
−17		(−181)89 − 19
(+70−0=38)
82.4%
89.0 / 108
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 1 1 = 1 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		(−189)58 − 16
(+42−0=32)
78.4%
58.0 / 74
100.0%
−6
= = 1 = = 1 1 = 1 = = = 1 1 1 1 1 = = 1 1 = 1 = 1 1 1 = 1 1 = = 1 = 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		(−220)3.5 − 1.5
(+2−0=3)		70.0%
3.5 / 5
100.0%
−101
= 1 = 1 =
–   RubiChess 2.0 NN-375bd 64-bit3277+16
−16		(−232)65 − 9
(+56−0=18)
87.8%
65.0 / 74
100.0%
+62
1 1 1 = 1 1 1 = 1 1 1 = 1 1 1 = = 1 1 1 1 1 1 1 1 1 1 = 1 1 1 1 1 = 1 1 1 1 1 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		(−237)47.5 − 8.5
(+39−0=17)
84.8%
47.5 / 56
100.0%
+13
1 = = = 1 = 1 1 1 1 = = 1 = 1 1 1 1 1 1 1 1 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		(−254)50 − 6
(+45−1=10)
89.3%
50.0 / 56
100.0%
+73
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 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		(−256)60.5 − 13.5
(+47−0=27)
81.8%
60.5 / 74
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 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		(−269)3.5 − 0.5
(+3−0=1)		87.5%
3.5 / 4
100.0%
+20
1 1 1 =
–   Booot 6.4 64-bit3238+11
−11		(−271)1.5 − 0.5
(+1−0=1)		75.0%
1.5 / 2
100.0%
−113
= 1
901 games: 397 wins, 7 losses, 497 draws (55.2%), score: 71.6%

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Created in 2005-2013 by CCRL team
Last games added on April 10, 2021