CCRL 40/15
Downloads and Statistics
March 2, 2021
Testing summary:
Total: 1'220'986 games
played by 2'799 programs

White wins: 419'408 (34.3%)
Black wins: 308'533 (25.3%)
Draws: 493'045 (40.4%)
White score: 54.5%

Engine Details

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Stockfish 1.9.1 32-bit (3000+16
−16
)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 122 Stockfish versions we tested: Compare them!
OpponentEloDiffResultsScoreLOSPerf
–   SlowChess Blitz Classic 1.9 64-bit3104+23
−23
(+104)3.5 − 12.5
(+0−9=7)
21.9%
3.5 / 16
0.0%
−74
0 0 = 0 0 = = 0 0 0 0 = 0 = = =
–   Xiphos 0.3 64-bit3092+19
−19
(+92)7.5 − 12.5
(+3−8=9)
37.5%
7.5 / 20
0.0%
+15
= = 0 = 0 1 0 = = = = = = 0 0 1 0 1 0 0
–   Winter 0.8 64-bit3081+21
−21
(+81)7.5 − 8.5
(+5−6=5)
46.9%
7.5 / 16
0.0%
+55
0 1 = = 1 1 0 0 1 = 1 = 0 0 0 =
–   Pedone 1.9 64-bit3079+16
−16
(+79)8 − 12
(+4−8=8)
40.0%
8.0 / 20
0.0%
+12
0 = = = = = 1 0 1 0 = = 0 0 1 0 0 = 1 0
–   chess22k 1.14 64-bit3078+17
−17
(+78)8 − 8
(+3−3=10)
50.0%
8.0 / 16
0.0%
+80
= = = = = = = 1 1 0 = = = 0 0 1
–   Arasan 21.2 64-bit3077+16
−16
(+77)4.5 − 7.5
(+0−3=9)
37.5%
4.5 / 12
0.0%
+14
= 0 = = = = 0 = = = = 0
–   Koivisto 4.0 64-bit3070+22
−21
(+70)4.5 − 11.5
(+1−8=7)
28.1%
4.5 / 16
0.0%
−67
0 0 0 0 = = = = 0 = 0 0 0 = = 1
–   Sting SF 15 64-bit3031+25
−25
(+31)10 − 14
(+1−5=18)
41.7%
10.0 / 24
1.7%
−11
= = = 0 0 = = = = = 0 = = = = = = = 0 = = 0 = 1
–   Senpai 2.0 64-bit3031+11
−11
(+31)4 − 6
(+2−4=4)
40.0%
4.0 / 10
0.1%
−31
0 1 = = 0 1 0 0 = =
–   Laser 1.4 64-bit3025+18
−18
(+25)6.5 − 7.5
(+4−5=5)
46.4%
6.5 / 14
2.0%
0
0 1 = = 1 = = 1 0 = 0 1 0 0
–   ChessBrainVB 3.683024+21
−21
(+24)9 − 5
(+4−0=10)
64.3%
9.0 / 14
3.3%
+95
1 = 1 = = = = = = = = = 1 1
–   Rybka 4 32-bit3017+14
−15
(+17)22 − 20
(+9−7=26)
52.4%
22.0 / 42
5.0%
+29
= 1 = 1 0 = 1 1 0 = 0 = = 0 0 1 1 = = = 1 = 1 = = 1 = = = = = = = 0 = = 0 = = = = =
–   Combusken 1.2.0 64-bit3010+25
−25
(+10)7 − 9
(+4−6=6)
43.8%
7.0 / 16
26.1%
−27
= 1 0 0 0 1 0 0 = = = = 1 0 = 1
–   Sting SF 19 64-bit3007+24
−24
(+7)7.5 − 6.5
(+2−1=11)
53.6%
7.5 / 14
31.2%
+25
0 = = = = = = = = = = 1 = 1
–   Rodent III 0.281 64-bit2992+20
−20
(−8)7.5 − 6.5
(+3−2=9)
53.6%
7.5 / 14
73.2%
+12
0 = = 1 = = = = = = = 1 0 1
–   Critter 0.90 32-bit2989+15
−15
(−11)22.5 − 17.5
(+10−5=25)
56.3%
22.5 / 40
86.0%
+25
0 = 1 = 1 1 0 = = = 0 0 0 1 = = 1 = 1 = = = = = 1 1 = = = = = = = = = 1 = = 1 =
–   ChessBrainVB 3.612987+27
−27
(−13)6 − 4
(+4−2=4)
60.0%
6.0 / 10
80.5%
+50
= = 1 1 1 0 = = 0 1
–   Demolito 2019-04-27 64-bit2985+19
−19
(−15)7.5 − 6.5
(+4−3=7)
53.6%
7.5 / 14
88.1%
+7
= = = = = = 0 0 1 1 = 1 1 0
–   Naum 4.2 32-bit2958+10
−10
(−42)24 − 18
(+12−6=24)
57.1%
24.0 / 42
100.0%
0
1 0 1 = 0 0 = = 1 = 1 = = 1 = 1 = = 1 = 0 = = 1 = 1 1 0 = = = 1 = = = 0 = = 1 = = =
–   Deep Sjeng c't 20102940+10
−10
(−60)23 − 15
(+10−2=26)
60.5%
23.0 / 38
100.0%
−3
1 = 1 = = = = 0 = 1 = 1 = = = = = 1 = = = = 1 = 1 = 1 = = 0 = = 1 = 1 = = =
–   Francesca MAD 0.30a 64-bit2939+35
−35
(−61)5.5 − 4.5
(+3−2=5)
55.0%
5.5 / 10
99.9%
−30
= 1 = = 0 = 0 1 = 1
–   Shredder 12 32-bit2928+8
−7
(−72)47 − 25
(+29−7=36)
65.3%
47.0 / 72
100.0%
+20
1 = 0 = 0 = = = 1 = = = 1 = 1 = 1 1 0 1 = = 1 = = 1 1 1 1 = = = = = = 1 1 1 = 1 1 = = = 0 1 0 1 0 1 = 1 1 = = = 1 1 0 1 = = = = = 1 = 1 = = 1 1
–   Critter 0.80 32-bit2924+15
−15
(−76)22.5 − 14.5
(+11−3=23)
60.8%
22.5 / 37
100.0%
−16
= = = = = = = 1 0 1 1 = 1 1 = 1 1 0 = = = = = = = 1 = = 1 = = = 1 1 = 0 =
–   Dirty CUCUMBER 64-bit2917+12
−12
(−83)7 − 5
(+5−3=4)
58.3%
7.0 / 12
100.0%
−27
1 1 = = 1 0 0 = 1 1 = 0
–   Komodo 1.3 32-bit2916+16
−16
(−84)19 − 14
(+9−4=20)
57.6%
19.0 / 33
100.0%
−38
= 1 = = 1 1 = = = = = = = 0 0 1 = 1 = 0 = 1 = = 1 0 1 1 = = = = =
–   Rybka 2.3.2a 32-bit2912+9
−9
(−88)20 − 10
(+12−2=16)
66.7%
20.0 / 30
100.0%
+11
1 = = = 1 = 1 = 1 = = = = 1 1 1 = = = 1 1 0 = = 1 = 1 = 0 1
–   Komodo 1.2 32-bit2896+14
−14
(−104)29.5 − 13.5
(+21−5=17)
68.6%
29.5 / 43
100.0%
+14
1 1 0 = 1 1 = = = 1 = = = 1 0 0 1 = 1 = 1 = 1 1 = 1 = = 0 1 1 1 1 1 1 = 0 1 1 = = = 1
–   Hiarcs 13.22895+11
−10
(−105)20 − 10
(+12−2=16)
66.7%
20.0 / 30
100.0%
−8
1 = = 1 1 1 = = = = = 1 = 1 = = = 1 1 1 1 = = = 1 = 0 = 0 1
–   Fritz 122886+11
−11
(−114)25 − 13
(+16−4=18)
65.8%
25.0 / 38
100.0%
−16
= 1 = = = 1 0 0 = = = 1 0 = = 1 1 = 1 1 = = 1 = 1 1 = = = 1 1 = 1 1 0 1 = 1
–   Gull 1.0a 32-bit2885+12
−12
(−115)25 − 9
(+19−3=12)
73.5%
25.0 / 34
100.0%
+43
1 = 1 = 1 1 1 1 1 1 = = 1 1 1 0 1 = 1 = 1 = = 0 1 0 1 1 1 = = = = 1
–   Protector 1.4.0 32-bit2878+11
−11
(−122)21 − 9
(+15−3=12)
70.0%
21.0 / 30
100.0%
+8
= 1 = 1 = 1 1 1 = 0 = 1 1 = 0 = 1 = = 1 = 1 1 1 0 1 1 1 = =
–   Gull 1.1 32-bit2876+17
−17
(−124)27.5 − 12.5
(+15−0=25)
68.8%
27.5 / 40
100.0%
−19
1 1 = 1 = = 1 = = 1 = = 1 = 1 = = = 1 1 1 = = = = = = 1 = = = = = = 1 1 = 1 = 1
–   Hiarcs 13.12874+14
−14
(−126)27 − 15
(+18−6=18)
64.3%
27.0 / 42
100.0%
−38
0 = 1 = = 1 1 1 0 1 0 = = 1 1 1 1 1 = = = = = 1 1 1 = = 1 1 = 1 = 0 0 = = = 1 = 0 1
–   Spark 1.0 32-bit2864+11
−11
(−136)23.5 − 9.5
(+16−2=15)
71.2%
23.5 / 33
100.0%
−3
1 1 = = = = = = = 1 = 1 1 = 1 = = 1 1 1 0 = = 1 1 1 1 = 1 0 = 1 1
–   Thinker 5.4d Inert 32-bit2856+10
−10
(−144)28 − 11
(+21−4=14)
71.8%
28.0 / 39
100.0%
0
0 = 1 = = 1 1 1 1 1 1 1 = 1 1 1 = = 1 = = = 0 1 0 = 1 = = 1 1 1 1 0 = 1 1 = 1
–   Deep Junior 12 32-bit2856+18
−19
(−144)24.5 − 12.5
(+16−4=17)
66.2%
24.5 / 37
100.0%
−45
1 = 1 = 1 1 1 = = = 1 0 = = 1 1 = 1 = = 0 = 0 = 1 0 1 = 1 = 1 1 1 = = = 1
–   Booot 5.1.02844+10
−10
(−156)23 − 9
(+18−4=10)
71.9%
23.0 / 32
100.0%
−7
1 = 1 1 = 1 1 1 1 = 1 1 = 0 = 1 1 0 1 1 1 1 = 0 0 = = 1 1 = 1 =
–   Deep Junior 11.1a 32-bit2831+17
−17
(−169)22.5 − 7.5
(+18−3=9)
75.0%
22.5 / 30
100.0%
+4
1 1 = = 1 1 1 1 1 1 1 1 = 1 1 1 = 1 = 1 1 0 1 = 0 = 1 = = 0
–   Protector 1.3.5 32-bit2828+15
−15
(−172)27 − 10
(+20−3=14)
73.0%
27.0 / 37
100.0%
−22
1 = 1 1 1 1 1 0 1 1 = = = 1 1 0 1 1 = 1 1 1 1 = = = 1 = 1 1 0 = = 1 = = =
–   Grapefruit 1.0 32-bit2826+9
−9
(−174)21.5 − 8.5
(+14−1=15)
71.7%
21.5 / 30
100.0%
−45
= 1 1 1 1 = = = 1 1 1 = = = = = 1 = 1 1 0 1 = 1 1 1 = = = =
–   Booot 5.02824+15
−15
(−176)26.5 − 7.5
(+20−1=13)
77.9%
26.5 / 34
100.0%
+9
1 = 1 = 1 = = 1 1 = = 1 1 = 1 = = 1 1 1 1 1 1 1 1 = 1 1 1 = = = 0 1
–   Cyclone xTreme2823+13
−13
(−177)24.5 − 5.5
(+19−0=11)
81.7%
24.5 / 30
100.0%
+36
1 1 1 1 1 = 1 = = = 1 = = = = = 1 1 = 1 1 1 1 1 1 1 1 1 = 1
–   Spark 0.4 32-bit2821+16
−16
(−179)27 − 7
(+23−3=8)
79.4%
27.0 / 34
100.0%
+41
1 1 = = 1 1 1 1 1 0 1 = 1 1 1 1 1 1 1 1 1 = 1 1 0 = 0 1 = 1 = 1 = 1
–   Hannibal 1.0a 32-bit2800+12
−12
(−200)29 − 8
(+21−0=16)
78.4%
29.0 / 37
100.0%
−20
1 = = = 1 = = 1 1 = 1 1 = 1 = 1 1 1 = 1 1 1 1 = = 1 = = 1 = 1 1 = 1 1 = 1
–   Bright 0.5c2778+12
−12
(−222)22.5 − 7.5
(+17−2=11)
75.0%
22.5 / 30
100.0%
−56
1 = 1 1 1 0 = 1 = 1 1 = 1 = 1 1 1 0 = 1 = 1 1 = = 1 1 = 1 =
–   Jonny 4.002778+11
−11
(−222)28 − 6
(+22−0=12)
82.4%
28.0 / 34
100.0%
0
1 = = 1 1 1 1 = = = 1 1 1 1 = 1 1 1 1 = 1 = 1 1 1 1 1 1 = 1 = 1 = =
–   Scorpio 2.7 32-bit2749+20
−20
(−251)2.5 − 0.5
(+2−0=1)
83.3%
2.5 / 3
100.0%
−32
1 1 =
–   MinkoChess 1.0 32-bit2744+32
−32
(−256)0 − 1
(+0−1=0)
0.0%
0.0 / 1
100.0%
−INF
0
–   Tornado 4.4 32-bit2744+23
−23
(−256)2 − 0
(+2−0=0)
100.0%
2.0 / 2
100.0%
+INF
1 1
–   MinkoChess 1.1 32-bit2740+27
−27
(−260)5.5 − 0.5
(+5−0=1)
91.7%
5.5 / 6
100.0%
+97
1 1 = 1 1 1
–   Crafty 23.4 32-bit2732+19
−19
(−268)4 − 0
(+4−0=0)
100.0%
4.0 / 4
100.0%
+INF
1 1 1 1

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Created in 2005-2013 by CCRL team
Last games added on March 2, 2021