CCRL 40/15
Downloads and Statistics
May 1, 2021
Testing summary:
Total: 1'240'737 games
played by 2'832 programs

White wins: 425'216 (34.3%)
Black wins: 312'397 (25.2%)
Draws: 503'124 (40.6%)
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 123 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
50.5%
−2
–   SugaR AI 1.00 64-bit3492+17
−17
(−17)26 − 26
(+0−0=52)
50.0%
26.0 / 52
91.4%
−17
–   SugaR AI 1.50 64-bit3484+83
−78
(−25)2 − 2
(+0−0=4)
50.0%
2.0 / 4
72.9%
−25
–   ShashChess 15.0 64-bit3483+14
−14
(−26)40 − 38
(+2−0=76)
51.3%
40.0 / 78
98.9%
−19
–   Dragon by Komodo 64-bit3473+14
−14
(−36)46.5 − 37.5
(+11−2=71)
55.4%
46.5 / 84
99.9%
−9
–   ShashChess 16 64-bit3442+83
−79
(−67)2 − 2
(+0−0=4)
50.0%
2.0 / 4
94.4%
−67
–   Nemorino 6.00 64-bit3343+12
−12
(−166)13.5 − 4.5
(+9−0=9)
75.0%
13.5 / 18
100.0%
−14
–   Houdini 6 64-bit3335+8
−8
(−174)57 − 13
(+44−0=26)
81.4%
57.0 / 70
100.0%
+37
–   SlowChess Blitz 2.5 64-bit3329+16
−16
(−180)39.5 − 16.5
(+25−2=29)
70.5%
39.5 / 56
100.0%
−56
–   Fire 8 64-bit3329+17
−17
(−180)89 − 19
(+70−0=38)
82.4%
89.0 / 108
100.0%
+42
–   Ethereal 12.75 64-bit3320+12
−12
(−189)58 − 16
(+42−0=32)
78.4%
58.0 / 74
100.0%
−6
–   Nemorino 6.05 64-bit3289+18
−18
(−220)3.5 − 1.5
(+2−0=3)
70.0%
3.5 / 5
100.0%
−101
–   RubiChess 2.0 64-bit3278+16
−16
(−231)65 − 9
(+56−0=18)
87.8%
65.0 / 74
100.0%
+63
–   Igel 2.9.0 64-bit3272+15
−15
(−237)47.5 − 8.5
(+39−0=17)
84.8%
47.5 / 56
100.0%
+13
–   Booot 6.5 64-bit3258+18
−18
(−251)50 − 6
(+45−1=10)
89.3%
50.0 / 56
100.0%
+76
–   Xiphos 0.6 64-bit3253+9
−9
(−256)60.5 − 13.5
(+47−0=27)
81.8%
60.5 / 74
100.0%
−40
–   RofChade 2.3 64-bit3240+11
−11
(−269)3.5 − 0.5
(+3−0=1)
87.5%
3.5 / 4
100.0%
+20
–   Booot 6.4 64-bit3238+11
−11
(−271)1.5 − 0.5
(+1−0=1)
75.0%
1.5 / 2
100.0%
−113

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Created in 2005-2013 by CCRL team
Last games added on May 1, 2021