CCRL 40/15
Downloads and Statistics
April 18, 2021
Testing summary:
Total: 1'237'253 games
played by 2'822 programs

White wins: 424'164 (34.3%)
Black wins: 311'650 (25.2%)
Draws: 501'439 (40.5%)
White score: 54.5%

Engine Details

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Rybka 4 64-bit 4CPU#34  (3146+10
−10
)Quote
Author: Vasik Rajlich (USA) Link: Homepage
Information: There is some debate in the chess community about whether or not early versions of the Rybka engine contain parts of Fruit code
This is one of the 26 Rybka versions we tested: Compare them!
OpponentEloDiffResultsScoreLOSPerf
–   Stockfish 8 64-bit 4CPU3376+14
−13
(+230)5.5 − 26.5
(+0−21=11)
17.2%
5.5 / 32
0.0%
+2
–   Komodo 10.1 64-bit 4CPU3361+19
−19
(+215)7.5 − 23.5
(+2−18=11)
24.2%
7.5 / 31
0.0%
+42
–   Komodo 10.2 64-bit 4CPU3353+23
−23
(+207)2.5 − 29.5
(+0−27=5)
7.8%
2.5 / 32
0.0%
−166
–   Komodo 10 64-bit 4CPU3345+22
−22
(+199)11 − 39
(+0−28=22)
22.0%
11.0 / 50
0.0%
+21
–   Komodo 9.42 64-bit 4CPU3340+21
−21
(+194)9.5 − 40.5
(+0−31=19)
19.0%
9.5 / 50
0.0%
−15
–   Stockfish 7 64-bit 4CPU3325+15
−15
(+179)12 − 38
(+1−27=22)
24.0%
12.0 / 50
0.0%
+14
–   Komodo 9.2 64-bit 4CPU3324+17
−17
(+178)17 − 43
(+2−28=30)
28.3%
17.0 / 60
0.0%
+45
–   Komodo 9.3 64-bit 4CPU3321+19
−19
(+175)22.5 − 61.5
(+2−41=41)
26.8%
22.5 / 84
0.0%
+33
–   Komodo 9.1 64-bit 4CPU3308+21
−20
(+162)16.5 − 35.5
(+2−21=29)
31.7%
16.5 / 52
0.0%
+55
–   Komodo 9 64-bit 4CPU3306+20
−19
(+160)15 − 47
(+1−33=28)
24.2%
15.0 / 62
0.0%
−3
–   Stockfish 6 64-bit 4CPU3290+14
−14
(+144)10.5 − 31.5
(+1−22=19)
25.0%
10.5 / 42
0.0%
−13
–   Komodo 8 64-bit 4CPU3283+16
−16
(+137)15 − 35
(+0−20=30)
30.0%
15.0 / 50
0.0%
+24
–   Stockfish 5 64-bit 4CPU3268+15
−15
(+122)10.5 − 19.5
(+3−12=15)
35.0%
10.5 / 30
0.0%
+32
–   Houdini 4 64-bit 4CPU3240+10
−10
(+94)15.5 − 36.5
(+5−26=21)
29.8%
15.5 / 52
0.0%
−36
–   Stockfish DD 64-bit 4CPU3232+17
−17
(+86)10.5 − 23.5
(+3−16=15)
30.9%
10.5 / 34
0.0%
−31
–   Houdini 3 64-bit 4CPU3230+13
−13
(+84)9 − 21
(+4−16=10)
30.0%
9.0 / 30
0.0%
−54
–   Houdini 4 Tactical 64-bit 4CPU3229+24
−24
(+83)13.5 − 22.5
(+5−14=17)
37.5%
13.5 / 36
0.0%
+7
–   Komodo TCEC 64-bit 4CPU3216+18
−17
(+70)19.5 − 32.5
(+4−17=31)
37.5%
19.5 / 52
0.0%
−3
–   Komodo 6 64-bit 4CPU3209+17
−16
(+63)13 − 21
(+3−11=20)
38.2%
13.0 / 34
0.0%
−5
–   Stockfish 4 64-bit 4CPU3204+16
−16
(+58)6.5 − 23.5
(+1−18=11)
21.7%
6.5 / 30
0.0%
−132
–   Andscacs 0.872 64-bit 4CPU3198+24
−24
(+52)12 − 20
(+2−10=20)
37.5%
12.0 / 32
0.0%
−16
–   Fire 4 64-bit 4CPU3197+13
−13
(+51)19 − 31
(+4−16=30)
38.0%
19.0 / 50
0.0%
−16
–   Houdini 2.0c 64-bit 4CPU3193+16
−16
(+47)38.5 − 61.5
(+15−38=47)
38.5%
38.5 / 100
0.0%
−23
–   Fritz 16 64-bit 4CPU3190+12
−12
(+44)21.5 − 28.5
(+6−13=31)
43.0%
21.5 / 50
0.0%
+6
–   Houdini 1.5a 64-bit 4CPU3180+17
−17
(+34)33 − 49
(+15−31=36)
40.2%
33.0 / 82
0.0%
−24
–   Gull 3 64-bit 4CPU3179+9
−9
(+33)17 − 23
(+7−13=20)
42.5%
17.0 / 40
0.0%
−12
–   Fizbo 1.8 64-bit 4CPU3178+20
−21
(+32)12.5 − 19.5
(+3−10=19)
39.1%
12.5 / 32
0.3%
−30
–   Gull 2.8b 64-bit 4CPU3177+19
−19
(+31)6 − 4
(+4−2=4)
60.0%
6.0 / 10
0.3%
+94
–   Equinox 3.20 64-bit 4CPU3172+11
−11
(+26)17.5 − 19.5
(+2−4=31)
47.3%
17.5 / 37
0.0%
+13
–   Equinox 3.30 64-bit 4CPU3160+18
−18
(+14)9 − 12
(+2−5=14)
42.9%
9.0 / 21
8.4%
−28
–   Fritz 15 64-bit 4CPU3160+12
−12
(+14)17 − 19
(+5−7=24)
47.2%
17.0 / 36
3.4%
−2
–   Critter 1.6a 64-bit 4CPU3157+8
−8
(+11)31.5 − 36.5
(+11−16=41)
46.3%
31.5 / 68
3.0%
−10
–   Houdini 3 64-bit3156+13
−13
(+10)19.5 − 12.5
(+13−6=13)
60.9%
19.5 / 32
10.4%
+78
–   Hannibal 1.7 64-bit 4CPU3153+14
−14
(+7)17.5 − 24.5
(+4−11=27)
41.7%
17.5 / 42
18.8%
−36
–   NirvanaChess 2.3 64-bit 4CPU3151+18
−18
(+5)13.5 − 18.5
(+2−7=23)
42.2%
13.5 / 32
32.4%
−36
–   Bouquet 1.8 64-bit 4CPU3148+11
−11
(+2)15.5 − 14.5
(+5−4=21)
51.7%
15.5 / 30
39.7%
+11
–   Stockfish 2.2.2 64-bit 4CPU3146+16
−16
(0)17 − 15
(+7−5=20)
53.1%
17.0 / 32
50.5%
+19
–   Andscacs 0.86 64-bit 4CPU3145+20
−20
(−1)17 − 13
(+10−6=14)
56.7%
17.0 / 30
53.7%
+37
–   Critter 1.2 64-bit 4CPU3144+20
−20
(−2)67.5 − 67.5
(+28−28=79)
50.0%
67.5 / 135
56.3%
−2
–   Stockfish 2.3.1 64-bit 4CPU3141+19
−19
(−5)18.5 − 13.5
(+10−5=17)
57.8%
18.5 / 32
67.1%
+39
–   NirvanaChess 2.2 64-bit 4CPU3138+17
−17
(−8)17.5 − 18.5
(+4−5=27)
48.6%
17.5 / 36
77.2%
−12
–   Protector 1.9.0 64-bit 4CPU3137+15
−15
(−9)19 − 21
(+6−8=26)
47.5%
19.0 / 40
82.0%
−23
–   Alfil 15.7 64-bit 4CPU3135+17
−17
(−11)18 − 14
(+10−6=16)
56.3%
18.0 / 32
84.4%
+24
–   Andscacs 0.85 64-bit 4CPU3132+25
−25
(−14)8.5 − 11.5
(+4−7=9)
42.5%
8.5 / 20
83.9%
−62
–   Chiron 3.01 64-bit 4CPU3128+24
−24
(−18)11 − 9
(+2−0=18)
55.0%
11.0 / 20
90.3%
+5
–   Stockfish 2.0.1 64-bit 4CPU3125+24
−24
(−21)33.5 − 28.5
(+17−12=33)
54.0%
33.5 / 62
93.9%
+3
–   BlackMamba 2.0 64-bit 4CPU3121+15
−15
(−25)18 − 14
(+11−7=14)
56.3%
18.0 / 32
99.7%
+13
–   Rybka 3 64-bit 4CPU3117+13
−13
(−29)35 − 21
(+20−6=30)
62.5%
35.0 / 56
100.0%
+45
–   Stockfish 1.9.1 64-bit 4CPU3113+22
−22
(−33)43 − 33
(+25−15=36)
56.6%
43.0 / 76
99.7%
+5
–   Stockfish 1.8 64-bit 4CPU3107+18
−18
(−39)39 − 27
(+22−10=34)
59.1%
39.0 / 66
100.0%
+14
–   Komodo 5 64-bit3107+11
−11
(−39)18.5 − 13.5
(+9−4=19)
57.8%
18.5 / 32
100.0%
+7
–   Stockfish 1.7.1 64-bit 4CPU3102+19
−19
(−44)51.5 − 35.5
(+22−6=59)
59.2%
51.5 / 87
100.0%
+6
–   Komodo 4 64-bit3096+11
−11
(−50)48.5 − 32.5
(+27−11=43)
59.9%
48.5 / 81
100.0%
+7
–   Gull 2.2 64-bit 4CPU3096+25
−25
(−50)18 − 12
(+8−2=20)
60.0%
18.0 / 30
100.0%
+3
–   NirvanaChess 2.1c 64-bit 4CPU3094+23
−23
(−52)1.5 − 2.5
(+0−1=3)
37.5%
1.5 / 4
100.0%
−119
–   Critter 1.01 64-bit 4CPU3085+27
−27
(−61)11.5 − 6.5
(+6−1=11)
63.9%
11.5 / 18
100.0%
+16
–   Critter 0.90 64-bit 4CPU3076+31
−31
(−70)20.5 − 13.5
(+13−6=15)
60.3%
20.5 / 34
100.0%
−6
–   Deep Fritz 14 64-bit 4CPU3071+16
−16
(−75)18 − 12
(+9−3=18)
60.0%
18.0 / 30
100.0%
−17
–   Naum 4.2 64-bit 4CPU3059+10
−10
(−87)32 − 25
(+12−5=40)
56.1%
32.0 / 57
100.0%
−54
–   Alfil 15.8 64-bit 4CPU3055+22
−22
(−91)2.5 − 1.5
(+2−1=1)
62.5%
2.5 / 4
100.0%
+4
–   Deep Fritz 13 4CPU3033+16
−17
(−113)23 − 7
(+17−1=12)
76.7%
23.0 / 30
100.0%
+59
–   Critter 0.80 64-bit 4CPU3032+30
−30
(−114)22 − 10
(+12−0=20)
68.8%
22.0 / 32
100.0%
−10
–   Deep Junior 13 64-bit 4CPU3026+16
−16
(−120)22 − 10
(+15−3=14)
68.8%
22.0 / 32
100.0%
−3
–   Deep Junior 13.3 64-bit 4CPU3017+18
−18
(−129)31.5 − 12.5
(+22−3=19)
71.6%
31.5 / 44
100.0%
+8
–   Deep Shredder 12 64-bit 4CPU3016+10
−10
(−130)43.5 − 12.5
(+31−0=25)
77.7%
43.5 / 56
100.0%
+46
–   Spike 1.4 Leiden 4CPU3015+11
−11
(−131)23.5 − 8.5
(+15−0=17)
73.4%
23.5 / 32
100.0%
+6
–   Zappa Mexico II 64-bit 4CPU2967+10
−10
(−179)40 − 13
(+29−2=22)
75.5%
40.0 / 53
100.0%
−14
–   Komodo 1.2 64-bit2945+16
−16
(−201)52 − 17
(+37−2=30)
75.4%
52.0 / 69
100.0%
−39
–   Onno 1.2.70 64-bit 4CPU2932+19
−19
(−214)1 − 1
(+1−1=0)
50.0%
1.0 / 2
100.0%
−214
–   Spark 0.4 64-bit 4CPU2931+21
−21
(−215)58.5 − 15.5
(+47−4=23)
79.1%
58.5 / 74
100.0%
−10
–   Thinker 5.4d Inert 64-bit 4CPU2925+23
−23
(−221)2 − 0
(+2−0=0)
100.0%
2.0 / 2
100.0%
+INF
–   Deep Sjeng WC2008 64-bit 4CPU2924+13
−13
(−222)35.5 − 8.5
(+31−4=9)
80.7%
35.5 / 44
100.0%
+15
–   Thinker 5.4c Inert 64-bit 4CPU2922+15
−15
(−224)65 − 12
(+55−2=20)
84.4%
65.0 / 77
100.0%
+33

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Created in 2005-2013 by CCRL team
Last games added on April 18, 2021