CCRL 40/15
Downloads and Statistics
November 16, 2024
Testing summary:
Total: 1'967'497 games
played by 3'973 programs

White wins: 610'660 (31.0%)
Black wins: 425'811 (21.6%)
Draws: 931'026 (47.3%)
White score: 54.7%

Engine Details

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Fat Fritz 2 64-bit 4CPU (3601+10
−10		)Quote
Authors: Marco Costalba, Joona Kiiski, Stockfish team members Links: List of Authors, Homepage, Development Versions, Testing Framework, Freee and Open Source Software at Chessbase, Chessbase Explanatory Notes, Stockfish Legal Settlment Announcement, Software Freedom Conservancy
Stockfish was originally based on Glaurung by Tord Romstad. Fat Fritz 2 is a version of an opensource Stockfish binary modified to use an NNUE network trained and developed by Albert Silver. It has been marketed by Chessbase. In November 2022, a legal settlement regarding GPL compliance in respect of Fat Fritz 2 and Houdini 6 was reached between Chessbase and the Stockfish team, see links above. It is now downloadable free of charge from the Chesbase FOSS link.
This is one of the 152 Stockfish versions we tested: Compare them!
OpponentEloDiffResultsScoreLOSPerf
–   Torch v1 64-bit 4CPU3630+11
−11		(+29)22.5 − 27.5
(+1−6=43)
45.0%
22.5 / 50
0.0%
0
–   Stockfish 15.1 64-bit 4CPU3628+13
−13		(+27)15 − 17
(+0−2=30)
46.9%
15.0 / 32
0.0%
+8
–   ShashChess 26.0 64-bit 4CPU3624+15
−15		(+23)15 − 17
(+0−2=30)
46.9%
15.0 / 32
0.3%
+4
–   Dragon by Komodo 3.2 64-bit 4CPU3623+12
−12		(+22)25.5 − 26.5
(+0−1=51)
49.0%
25.5 / 52
0.0%
+16
–   Stockfish 15 64-bit 4CPU3622+13
−13		(+21)15 − 17
(+0−2=30)
46.9%
15.0 / 32
0.1%
+3
–   Stockfish 14 64-bit 4CPU3621+13
−13		(+20)31 − 32
(+0−1=62)
49.2%
31.0 / 63
0.2%
+15
–   Dragon by Komodo 3.1 64-bit 4CPU3616+14
−14		(+15)15.5 − 16.5
(+0−1=31)
48.4%
15.5 / 32
2.6%
+6
–   Dragon by Komodo 3 64-bit 4CPU3615+14
−14		(+14)23.5 − 26.5
(+0−3=47)
47.0%
23.5 / 50
3.0%
−1
–   ShashChess 21.1 64-bit 4CPU3615+16
−16		(+14)16 − 16
(+1−1=30)
50.0%
16.0 / 32
5.0%
+14
–   SugaR AI 2.50 64-bit 4CPU3615+14
−14		(+14)16 − 16
(+0−0=32)
50.0%
16.0 / 32
2.5%
+14
–   Stockfish 13 64-bit 4CPU3613+13
−13		(+12)26 − 26
(+0−0=52)
50.0%
26.0 / 52
4.5%
+12
–   Stockfish 2021-01-11 64-bit 4CPU3612+13
−13		(+11)16 − 16
(+2−2=28)
50.0%
16.0 / 32
6.4%
+11
–   Dragon by Komodo 2.6 64-bit 4CPU3611+16
−16		(+10)15.5 − 16.5
(+0−1=31)
48.4%
15.5 / 32
11.2%
+2
–   Stockfish 14.1 64-bit 4CPU3608+15
−15		(+7)16 − 16
(+0−0=32)
50.0%
16.0 / 32
18.3%
+7
–   Dragon by Komodo 2.5 64-bit 4CPU3600+17
−17		(−1)16 − 16
(+1−1=30)
50.0%
16.0 / 32
56.2%
−1
–   ShashChess 19.3 64-bit 4CPU3585+17
−17		(−16)15.5 − 16.5
(+1−2=29)
48.4%
15.5 / 32
96.1%
−25
–   Berserk 11.1 64-bit 4CPU3583+12
−12		(−18)17.5 − 14.5
(+3−0=29)
54.7%
17.5 / 32
99.4%
+8
–   Dragon by Komodo 2 64-bit 4CPU3580+20
−20		(−21)19.5 − 12.5
(+7−0=25)
60.9%
19.5 / 32
97.7%
+44
–   Ethereal 14.00 64-bit 4CPU3577+12
−12		(−24)17 − 15
(+2−0=30)
53.1%
17.0 / 32
100.0%
−6
–   Berserk 10 64-bit 4CPU3567+13
−13		(−34)18 − 14
(+4−0=28)
56.3%
18.0 / 32
100.0%
+2
–   Dragon by Komodo 64-bit 4CPU3567+13
−13		(−34)19.5 − 14.5
(+6−1=27)
57.4%
19.5 / 34
100.0%
+10
–   Koivisto 9.0 64-bit 4CPU3560+10
−10		(−41)18 − 14
(+4−0=28)
56.3%
18.0 / 32
100.0%
−4
–   Revenge 3.0 64-bit 4CPU3558+9
−9		(−43)17.5 − 14.5
(+4−1=27)
54.7%
17.5 / 32
100.0%
−14
–   RubiChess 20221120 64-bit 4CPU3558+12
−12		(−43)18.5 − 13.5
(+5−0=27)
57.8%
18.5 / 32
100.0%
+4
–   Igel 3.4.0 64-bit 4CPU3557+14
−14		(−44)18 − 14
(+5−1=26)
56.3%
18.0 / 32
100.0%
−6
–   Ethereal 13.75 64-bit 4CPU3554+12
−12		(−47)18.5 − 13.5
(+5−0=27)
57.8%
18.5 / 32
100.0%
0
–   Berserk 9 64-bit 4CPU3554+14
−14		(−47)17.5 − 14.5
(+3−0=29)
54.7%
17.5 / 32
100.0%
−20
–   Koivisto 8.0 64-bit 4CPU3551+11
−11		(−50)16.5 − 15.5
(+1−0=31)
51.6%
16.5 / 32
100.0%
−41
–   Stockfish 12 64-bit3545+12
−12		(−56)21.5 − 16.5
(+7−2=29)
56.6%
21.5 / 38
100.0%
−16
–   SlowChess Blitz 2.9 64-bit 4CPU3545+9
−9		(−56)18 − 14
(+4−0=28)
56.3%
18.0 / 32
100.0%
−20
–   Berserk 8.5.1 64-bit 4CPU3542+15
−15		(−59)18.5 − 13.5
(+6−1=25)
57.8%
18.5 / 32
100.0%
−11
–   SlowChess Blitz 2.8 64-bit 4CPU3538+13
−13		(−63)17.5 − 14.5
(+3−0=29)
54.7%
17.5 / 32
100.0%
−36
–   Seer 2.6.0 64-bit 4CPU3534+11
−11		(−67)21 − 11
(+10−0=22)
65.6%
21.0 / 32
100.0%
+29
–   Ethereal 13.50 64-bit 4CPU3534+14
−14		(−67)31.5 − 20.5
(+12−1=39)
60.6%
31.5 / 52
100.0%
0
–   Dragon by Komodo 64-bit3533+10
−10		(−68)21 − 15
(+6−0=30)
58.3%
21.0 / 36
100.0%
−18
–   Rebel 16 64-bit 4CPU3530+14
−14		(−71)18.5 − 13.5
(+6−1=25)
57.8%
18.5 / 32
100.0%
−23
–   RubiChess 20220813 64-bit 4CPU3530+15
−15		(−71)20 − 12
(+8−0=24)
62.5%
20.0 / 32
100.0%
+4
–   Minic 3.31 64-bit 4CPU3528+12
−12		(−73)19.5 − 12.5
(+7−0=25)
60.9%
19.5 / 32
100.0%
−9
–   Berserk 8 64-bit 4CPU3526+18
−18		(−75)19 − 13
(+6−0=26)
59.4%
19.0 / 32
100.0%
−18
–   rofChade 3.0 64-bit 4CPU3526+10
−10		(−75)21 − 11
(+10−0=22)
65.6%
21.0 / 32
100.0%
+24
–   Revenge 2.0 64-bit 4CPU3524+14
−14		(−77)19 − 13
(+6−0=26)
59.4%
19.0 / 32
100.0%
−20
–   Igel 3.3.0 64-bit 4CPU3522+17
−17		(−79)19.5 − 12.5
(+7−0=25)
60.9%
19.5 / 32
100.0%
−12
–   RubiChess 20220223 64-bit 4CPU3516+13
−13		(−85)20 − 12
(+8−0=24)
62.5%
20.0 / 32
100.0%
−7
–   Koivisto 7.0 64-bit 4CPU3516+15
−15		(−85)20.5 − 11.5
(+9−0=23)
64.1%
20.5 / 32
100.0%
0
–   Ethereal 13.25 64-bit 4CPU3515+14
−14		(−86)20.5 − 11.5
(+9−0=23)
64.1%
20.5 / 32
100.0%
+1
–   Minic 3.30 64-bit 4CPU3515+14
−14		(−86)21.5 − 10.5
(+11−0=21)
67.2%
21.5 / 32
100.0%
+22
–   Uralochka 3.39d 64-bit 4CPU3512+13
−13		(−89)22 − 10
(+13−1=18)
68.8%
22.0 / 32
100.0%
+37
–   Seer 2.5.0 64-bit 4CPU3510+13
−13		(−91)20.5 − 11.5
(+9−0=23)
64.1%
20.5 / 32
100.0%
−3
–   SlowChess Blitz 2.6 64-bit 4CPU3508+16
−16		(−93)20 − 12
(+8−0=24)
62.5%
20.0 / 32
100.0%
−15
–   Berserk 7.0 64-bit 4CPU3507+17
−17		(−94)21.5 − 10.5
(+11−0=21)
67.2%
21.5 / 32
100.0%
+15
–   SlowChess Blitz 2.7 64-bit 4CPU3506+17
−17		(−95)22 − 10
(+12−0=20)
68.8%
22.0 / 32
100.0%
+25
–   RubiChess 2021 64-bit 4CPU3501+18
−18		(−100)20.5 − 11.5
(+10−1=21)
64.1%
20.5 / 32
100.0%
−10
–   Arasan 23.4 64-bit 4CPU3499+13
−13		(−102)24.5 − 7.5
(+17−0=15)
76.6%
24.5 / 32
100.0%
+79
–   RubiChess 2.2 64-bit 4CPU3496+15
−15		(−105)22 − 10
(+12−0=20)
68.8%
22.0 / 32
100.0%
+15
–   Uralochka 3.38c 64-bit 4CPU3493+15
−15		(−108)20.5 − 9.5
(+11−0=19)
68.3%
20.5 / 30
100.0%
+9
–   Rebel 15.1a 64-bit 4CPU3490+16
−16		(−111)16.5 − 7.5
(+9−0=15)		68.8%
16.5 / 24
100.0%
+10
–   Arasan 23.3 64-bit 4CPU3489+14
−14		(−112)21.5 − 10.5
(+11−0=21)
67.2%
21.5 / 32
100.0%
−1
–   Revenge 1.0 64-bit 4CPU3484+15
−15		(−117)21.5 − 10.5
(+11−0=21)
67.2%
21.5 / 32
100.0%
−9
–   Igel 3.1.0 64-bit 4CPU3484+12
−12		(−117)22.5 − 9.5
(+13−0=19)
70.3%
22.5 / 32
100.0%
+14
–   Ginkgo Vienna 64-bit 4CPU3481+13
−13		(−120)13.5 − 6.5
(+7−0=13)		67.5%
13.5 / 20
100.0%
−10
–   Minic 3.24 64-bit 4CPU3478+15
−15		(−123)20 − 12
(+8−0=24)
62.5%
20.0 / 32
100.0%
−48
–   Igel 3.0.5 64-bit 4CPU3475+11
−11		(−126)36.5 − 15.5
(+22−1=29)
70.2%
36.5 / 52
100.0%
+7
–   Koivisto 6.0 64-bit 4CPU3473+17
−17		(−128)21.5 − 10.5
(+11−0=21)
67.2%
21.5 / 32
100.0%
−20
–   Seer 2.4.0 64-bit 4CPU3472+14
−14		(−129)21.5 − 10.5
(+11−0=21)
67.2%
21.5 / 32
100.0%
−20
–   Ethereal 13.00 64-bit 4CPU3468+16
−16		(−133)35 − 15
(+21−1=28)
70.0%
35.0 / 50
100.0%
−1
–   RubiChess 2.1 64-bit 4CPU3464+15
−15		(−137)24.5 − 7.5
(+17−0=15)
76.6%
24.5 / 32
100.0%
+45
–   Berserk 6.0 64-bit 4CPU3463+16
−16		(−138)22 − 10
(+12−0=20)
68.8%
22.0 / 32
100.0%
−17
–   Igel 3.0.0 64-bit 4CPU3458+18
−18		(−143)24.5 − 9.5
(+15−0=19)
72.1%
24.5 / 34
100.0%
+1
–   Halogen 11 64-bit 4CPU3458+16
−16		(−143)13.5 − 6.5
(+7−0=13)		67.5%
13.5 / 20
100.0%
−32
–   Nemorino 6.00 64-bit 4CPU3456+10
−10		(−145)22 − 10
(+12−0=20)
68.8%
22.0 / 32
100.0%
−23
–   Houdini 6 64-bit 4CPU3456+7
−7		(−145)23 − 11
(+13−1=20)
67.6%
23.0 / 34
100.0%
−28
–   Ethereal 12.75 64-bit 4CPU3453+13
−13		(−148)25.5 − 8.5
(+17−0=17)
75.0%
25.5 / 34
100.0%
+20
–   SlowChess Blitz 2.5 64-bit 4CPU3453+15
−15		(−148)22 − 10
(+13−1=18)
68.8%
22.0 / 32
100.0%
−25
–   Arasan 23.2 64-bit 4CPU3447+16
−16		(−154)24 − 6
(+18−0=12)
80.0%
24.0 / 30
100.0%
+56
–   Fire 8 64-bit 4CPU3445+12
−12		(−156)41.5 − 12.5
(+29−0=25)
76.9%
41.5 / 54
100.0%
+27
–   Pedone 3.1 64-bit 4CPU3441+15
−15		(−160)39.5 − 12.5
(+27−0=25)
76.0%
39.5 / 52
100.0%
+16
–   Wasp 6.00 64-bit 4CPU3440+15
−15		(−161)18.5 − 5.5
(+13−0=11)		77.1%
18.5 / 24
100.0%
+25
–   Clover 3.1 64-bit 4CPU3438+15
−15		(−163)18.5 − 5.5
(+13−0=11)		77.1%
18.5 / 24
100.0%
+23
–   Nemorino 6.05 64-bit 4CPU3432+16
−16		(−169)24 − 10
(+14−0=20)
70.6%
24.0 / 34
100.0%
−35
–   Igel 2.9.0 64-bit 4CPU3419+15
−15		(−182)39.5 − 12.5
(+27−0=25)
76.0%
39.5 / 52
100.0%
−5
–   SlowChess Blitz 2.4 64-bit 4CPU3417+19
−19		(−184)3 − 1
(+2−0=2)		75.0%
3.0 / 4
100.0%
−17
–   RubiChess 2.0 64-bit 4CPU3412+16
−16		(−189)26.5 − 5.5
(+21−0=11)
82.8%
26.5 / 32
100.0%
+50
–   Houdini 6 64-bit3392+5
−5		(−209)27.5 − 8.5
(+19−0=17)
76.4%
27.5 / 36
100.0%
−28
–   Xiphos 0.6 64-bit 4CPU3386+10
−10		(−215)26.5 − 5.5
(+21−0=11)
82.8%
26.5 / 32
100.0%
+24
–   Booot 6.5 64-bit 4CPU3379+15
−15		(−222)26 − 6
(+20−0=12)
81.3%
26.0 / 32
100.0%
+1
–   Ethereal 12.75 64-bit3378+9
−9		(−223)27.5 − 8.5
(+19−0=17)
76.4%
27.5 / 36
100.0%
−42
–   Fire 7.1 64-bit 4CPU3378+10
−10		(−223)27.5 − 4.5
(+23−0=9)
85.9%
27.5 / 32
100.0%
+50
–   Lc0 0.27.0 w703810 64-bit 4CPU3369+12
−12		(−232)28.5 − 11.5
(+17−0=23)
71.3%
28.5 / 40
100.0%
−93
–   rofChade 2.3 64-bit 4CPU3367+11
−11		(−234)25 − 7
(+19−1=12)
78.1%
25.0 / 32
100.0%
−32
–   Pedone 3.0 64-bit 4CPU3366+13
−13		(−235)26.5 − 5.5
(+21−0=11)
82.8%
26.5 / 32
100.0%
+3
–   Booot 6.4 64-bit 4CPU3352+12
−12		(−249)25 − 5
(+20−0=10)
83.3%
25.0 / 30
100.0%
−4
3093 games: 866 wins, 40 losses, 2187 draws (70.7%), score: 63.4%

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Created in 2005-2013 by CCRL team
Last games added on November 16, 2024