CCRL 40/15
Downloads and Statistics
January 16, 2021
Testing summary:
Total: 1'206'633 games
played by 2'770 programs

White wins: 414'929 (34.4%)
Black wins: 305'861 (25.3%)
Draws: 485'843 (40.3%)
White score: 54.5%

Engine Details

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Rybka 4 64-bit 4CPU#31  (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 4CPU3377+14
−14
(+231)5.5 − 26.5
(+0−21=11)
17.2%
5.5 / 32
0.0%
+3
–   Komodo 10.1 64-bit 4CPU3362+19
−19
(+216)7.5 − 23.5
(+2−18=11)
24.2%
7.5 / 31
0.0%
+43
–   Komodo 10.2 64-bit 4CPU3354+23
−23
(+208)2.5 − 29.5
(+0−27=5)
7.8%
2.5 / 32
0.0%
−165
–   Komodo 10 64-bit 4CPU3346+22
−22
(+200)11 − 39
(+0−28=22)
22.0%
11.0 / 50
0.0%
+22
–   Komodo 9.42 64-bit 4CPU3341+21
−21
(+195)9.5 − 40.5
(+0−31=19)
19.0%
9.5 / 50
0.0%
−14
–   Komodo 9.2 64-bit 4CPU3325+17
−17
(+179)17 − 43
(+2−28=30)
28.3%
17.0 / 60
0.0%
+46
–   Stockfish 7 64-bit 4CPU3325+15
−15
(+179)12 − 38
(+1−27=22)
24.0%
12.0 / 50
0.0%
+14
–   Komodo 9.3 64-bit 4CPU3322+19
−19
(+176)22.5 − 61.5
(+2−41=41)
26.8%
22.5 / 84
0.0%
+34
–   Komodo 9.1 64-bit 4CPU3309+21
−20
(+163)16.5 − 35.5
(+2−21=29)
31.7%
16.5 / 52
0.0%
+56
–   Komodo 9 64-bit 4CPU3307+20
−19
(+161)15 − 47
(+1−33=28)
24.2%
15.0 / 62
0.0%
−2
–   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 4CPU3284+16
−16
(+138)15 − 35
(+0−20=30)
30.0%
15.0 / 50
0.0%
+25
–   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 4CPU3241+10
−10
(+95)15.5 − 36.5
(+5−26=21)
29.8%
15.5 / 52
0.0%
−35
–   Stockfish DD 64-bit 4CPU3233+17
−17
(+87)10.5 − 23.5
(+3−16=15)
30.9%
10.5 / 34
0.0%
−30
–   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 4CPU3230+24
−24
(+84)13.5 − 22.5
(+5−14=17)
37.5%
13.5 / 36
0.0%
+8
–   Komodo TCEC 64-bit 4CPU3217+18
−18
(+71)19.5 − 32.5
(+4−17=31)
37.5%
19.5 / 52
0.0%
−2
–   Komodo 6 64-bit 4CPU3210+16
−16
(+64)13 − 21
(+3−11=20)
38.2%
13.0 / 34
0.0%
−4
–   Stockfish 4 64-bit 4CPU3205+16
−16
(+59)6.5 − 23.5
(+1−18=11)
21.7%
6.5 / 30
0.0%
−131
–   Andscacs 0.872 64-bit 4CPU3199+24
−24
(+53)12 − 20
(+2−10=20)
37.5%
12.0 / 32
0.0%
−15
–   Fire 4 64-bit 4CPU3198+12
−12
(+52)19 − 31
(+4−16=30)
38.0%
19.0 / 50
0.0%
−15
–   Houdini 2.0c 64-bit 4CPU3194+16
−16
(+48)38.5 − 61.5
(+15−38=47)
38.5%
38.5 / 100
0.0%
−22
–   Fritz 16 64-bit 4CPU3192+12
−12
(+46)21.5 − 28.5
(+6−13=31)
43.0%
21.5 / 50
0.0%
+8
–   Houdini 1.5a 64-bit 4CPU3182+17
−17
(+36)33 − 49
(+15−31=36)
40.2%
33.0 / 82
0.0%
−22
–   Gull 3 64-bit 4CPU3180+9
−9
(+34)17 − 23
(+7−13=20)
42.5%
17.0 / 40
0.0%
−11
–   Fizbo 1.8 64-bit 4CPU3179+20
−21
(+33)12.5 − 19.5
(+3−10=19)
39.1%
12.5 / 32
0.2%
−29
–   Gull 2.8b 64-bit 4CPU3178+19
−19
(+32)6 − 4
(+4−2=4)
60.0%
6.0 / 10
0.3%
+95
–   Equinox 3.20 64-bit 4CPU3173+11
−11
(+27)17.5 − 19.5
(+2−4=31)
47.3%
17.5 / 37
0.0%
+14
–   Fritz 15 64-bit 4CPU3161+12
−12
(+15)17 − 19
(+5−7=24)
47.2%
17.0 / 36
3.2%
−1
–   Equinox 3.30 64-bit 4CPU3161+18
−18
(+15)9 − 12
(+2−5=14)
42.9%
9.0 / 21
8.2%
−27
–   Critter 1.6a 64-bit 4CPU3158+8
−8
(+12)31.5 − 36.5
(+11−16=41)
46.3%
31.5 / 68
2.9%
−9
–   Houdini 3 64-bit3157+13
−13
(+11)19.5 − 12.5
(+13−6=13)
60.9%
19.5 / 32
11.8%
+79
–   Hannibal 1.7 64-bit 4CPU3154+14
−14
(+8)17.5 − 24.5
(+4−11=27)
41.7%
17.5 / 42
17.7%
−35
–   NirvanaChess 2.3 64-bit 4CPU3151+18
−18
(+5)13.5 − 18.5
(+2−7=23)
42.2%
13.5 / 32
31.7%
−36
–   Bouquet 1.8 64-bit 4CPU3148+11
−11
(+2)15.5 − 14.5
(+5−4=21)
51.7%
15.5 / 30
39.4%
+11
–   Stockfish 2.2.2 64-bit 4CPU3146+16
−16
(0)17 − 15
(+7−5=20)
53.1%
17.0 / 32
51.2%
+19
–   Critter 1.2 64-bit 4CPU3145+20
−20
(−1)67.5 − 67.5
(+28−28=79)
50.0%
67.5 / 135
56.6%
−1
–   Andscacs 0.86 64-bit 4CPU3145+20
−20
(−1)17 − 13
(+10−6=14)
56.7%
17.0 / 30
54.0%
+37
–   Stockfish 2.3.1 64-bit 4CPU3141+19
−19
(−5)18.5 − 13.5
(+10−5=17)
57.8%
18.5 / 32
67.5%
+39
–   NirvanaChess 2.2 64-bit 4CPU3139+17
−17
(−7)17.5 − 18.5
(+4−5=27)
48.6%
17.5 / 36
77.4%
−11
–   Protector 1.9.0 64-bit 4CPU3138+15
−15
(−8)19 − 21
(+6−8=26)
47.5%
19.0 / 40
81.7%
−22
–   Alfil 15.7 64-bit 4CPU3136+17
−17
(−10)18 − 14
(+10−6=16)
56.3%
18.0 / 32
84.2%
+25
–   Andscacs 0.85 64-bit 4CPU3133+25
−25
(−13)8.5 − 11.5
(+4−7=9)
42.5%
8.5 / 20
83.8%
−61
–   Chiron 3.01 64-bit 4CPU3129+24
−24
(−17)11 − 9
(+2−0=18)
55.0%
11.0 / 20
90.2%
+6
–   Stockfish 2.0.1 64-bit 4CPU3126+24
−24
(−20)33.5 − 28.5
(+17−12=33)
54.0%
33.5 / 62
93.8%
+4
–   BlackMamba 2.0 64-bit 4CPU3122+15
−15
(−24)18 − 14
(+11−7=14)
56.3%
18.0 / 32
99.7%
+14
–   Rybka 3 64-bit 4CPU3118+13
−13
(−28)35 − 21
(+20−6=30)
62.5%
35.0 / 56
100.0%
+46
–   Stockfish 1.9.1 64-bit 4CPU3114+22
−22
(−32)43 − 33
(+25−15=36)
56.6%
43.0 / 76
99.6%
+6
–   Komodo 5 64-bit3107+11
−11
(−39)18.5 − 13.5
(+9−4=19)
57.8%
18.5 / 32
100.0%
+7
–   Stockfish 1.8 64-bit 4CPU3106+18
−18
(−40)39 − 27
(+22−10=34)
59.1%
39.0 / 66
100.0%
+13
–   Stockfish 1.7.1 64-bit 4CPU3103+18
−19
(−43)51.5 − 35.5
(+22−6=59)
59.2%
51.5 / 87
100.0%
+7
–   Komodo 4 64-bit3097+11
−11
(−49)48.5 − 32.5
(+27−11=43)
59.9%
48.5 / 81
100.0%
+8
–   Gull 2.2 64-bit 4CPU3097+25
−25
(−49)18 − 12
(+8−2=20)
60.0%
18.0 / 30
100.0%
+4
–   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 4CPU3086+27
−27
(−60)11.5 − 6.5
(+6−1=11)
63.9%
11.5 / 18
100.0%
+17
–   Critter 0.90 64-bit 4CPU3077+31
−31
(−69)20.5 − 13.5
(+13−6=15)
60.3%
20.5 / 34
100.0%
−5
–   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 4CPU3060+10
−10
(−86)32 − 25
(+12−5=40)
56.1%
32.0 / 57
100.0%
−53
–   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 4CPU3034+16
−17
(−112)23 − 7
(+17−1=12)
76.7%
23.0 / 30
100.0%
+60
–   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 4CPU3018+18
−18
(−128)31.5 − 12.5
(+22−3=19)
71.6%
31.5 / 44
100.0%
+9
–   Deep Shredder 12 64-bit 4CPU3017+10
−10
(−129)43.5 − 12.5
(+31−0=25)
77.7%
43.5 / 56
100.0%
+47
–   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 4CPU2968+10
−10
(−178)40 − 13
(+29−2=22)
75.5%
40.0 / 53
100.0%
−13
–   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 4CPU2933+19
−19
(−213)1 − 1
(+1−1=0)
50.0%
1.0 / 2
100.0%
−213
–   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 January 16, 2021