CCRL 40/15
Downloads and Statistics
August 1, 2020
Testing summary:
Total: 1'166'106 games
played by 2'690 programs

White wins: 402'287 (34.5%)
Black wins: 297'247 (25.5%)
Draws: 466'572 (40.0%)
White score: 54.5%

Engine Details

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Rybka 4 64-bit 4CPU#31  (3147+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 4CPU3378+14
−13
(+231)5.5 − 26.5
(+0−21=11)
17.2%
5.5 / 32
0.0%
+3
–   Komodo 10.1 64-bit 4CPU3362+19
−19
(+215)7.5 − 23.5
(+2−18=11)
24.2%
7.5 / 31
0.0%
+42
–   Komodo 10.2 64-bit 4CPU3354+23
−23
(+207)2.5 − 29.5
(+0−27=5)
7.8%
2.5 / 32
0.0%
−166
–   Komodo 10 64-bit 4CPU3346+23
−22
(+199)11 − 39
(+0−28=22)
22.0%
11.0 / 50
0.0%
+21
–   Komodo 9.42 64-bit 4CPU3341+21
−21
(+194)9.5 − 40.5
(+0−31=19)
19.0%
9.5 / 50
0.0%
−15
–   Stockfish 7 64-bit 4CPU3326+15
−15
(+179)12 − 38
(+1−27=22)
24.0%
12.0 / 50
0.0%
+14
–   Komodo 9.2 64-bit 4CPU3326+17
−17
(+179)17 − 43
(+2−28=30)
28.3%
17.0 / 60
0.0%
+46
–   Komodo 9.3 64-bit 4CPU3323+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
−21
(+162)16.5 − 35.5
(+2−21=29)
31.7%
16.5 / 52
0.0%
+55
–   Komodo 9 64-bit 4CPU3308+20
−20
(+161)15 − 47
(+1−33=28)
24.2%
15.0 / 62
0.0%
−2
–   Stockfish 6 64-bit 4CPU3291+14
−14
(+144)10.5 − 31.5
(+1−22=19)
25.0%
10.5 / 42
0.0%
−13
–   Komodo 8 64-bit 4CPU3285+16
−16
(+138)15 − 35
(+0−20=30)
30.0%
15.0 / 50
0.0%
+25
–   Stockfish 5 64-bit 4CPU3269+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
(+94)15.5 − 36.5
(+5−26=21)
29.8%
15.5 / 52
0.0%
−36
–   Stockfish DD 64-bit 4CPU3233+17
−17
(+86)10.5 − 23.5
(+3−16=15)
30.9%
10.5 / 34
0.0%
−31
–   Houdini 4 Tactical 64-bit 4CPU3231+24
−24
(+84)13.5 − 22.5
(+5−14=17)
37.5%
13.5 / 36
0.0%
+8
–   Houdini 3 64-bit 4CPU3231+13
−13
(+84)9 − 21
(+4−16=10)
30.0%
9.0 / 30
0.0%
−54
–   Komodo TCEC 64-bit 4CPU3218+18
−18
(+71)19.5 − 32.5
(+4−17=31)
37.5%
19.5 / 52
0.0%
−2
–   Komodo 6 64-bit 4CPU3210+17
−17
(+63)13 − 21
(+3−11=20)
38.2%
13.0 / 34
0.0%
−5
–   Stockfish 4 64-bit 4CPU3206+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
(+52)12 − 20
(+2−10=20)
37.5%
12.0 / 32
0.0%
−16
–   Fire 4 64-bit 4CPU3198+13
−13
(+51)19 − 31
(+4−16=30)
38.0%
19.0 / 50
0.0%
−16
–   Houdini 2.0c 64-bit 4CPU3194+16
−16
(+47)38.5 − 61.5
(+15−38=47)
38.5%
38.5 / 100
0.0%
−23
–   Fritz 16 64-bit 4CPU3192+12
−12
(+45)21.5 − 28.5
(+6−13=31)
43.0%
21.5 / 50
0.0%
+7
–   Houdini 1.5a 64-bit 4CPU3182+18
−17
(+35)33 − 49
(+15−31=36)
40.2%
33.0 / 82
0.0%
−23
–   Fizbo 1.8 64-bit 4CPU3180+21
−21
(+33)12.5 − 19.5
(+3−10=19)
39.1%
12.5 / 32
0.2%
−29
–   Gull 3 64-bit 4CPU3180+9
−9
(+33)17 − 23
(+7−13=20)
42.5%
17.0 / 40
0.0%
−12
–   Gull 2.8b 64-bit 4CPU3178+19
−19
(+31)6 − 4
(+4−2=4)
60.0%
6.0 / 10
0.3%
+94
–   Equinox 3.20 64-bit 4CPU3173+11
−11
(+26)17.5 − 19.5
(+2−4=31)
47.3%
17.5 / 37
0.0%
+13
–   Fritz 15 64-bit 4CPU3161+12
−12
(+14)17 − 19
(+5−7=24)
47.2%
17.0 / 36
3.2%
−2
–   Equinox 3.30 64-bit 4CPU3161+18
−18
(+14)9 − 12
(+2−5=14)
42.9%
9.0 / 21
8.3%
−28
–   Critter 1.6a 64-bit 4CPU3159+8
−8
(+12)31.5 − 36.5
(+11−16=41)
46.3%
31.5 / 68
2.9%
−9
–   Houdini 3 64-bit3158+13
−13
(+11)19.5 − 12.5
(+13−6=13)
60.9%
19.5 / 32
10.8%
+79
–   Hannibal 1.7 64-bit 4CPU3155+14
−14
(+8)17.5 − 24.5
(+4−11=27)
41.7%
17.5 / 42
17.8%
−35
–   NirvanaChess 2.3 64-bit 4CPU3152+18
−18
(+5)13.5 − 18.5
(+2−7=23)
42.2%
13.5 / 32
31.8%
−36
–   Bouquet 1.8 64-bit 4CPU3149+11
−11
(+2)15.5 − 14.5
(+5−4=21)
51.7%
15.5 / 30
39.4%
+11
–   Stockfish 2.2.2 64-bit 4CPU3147+16
−16
(0)17 − 15
(+7−5=20)
53.1%
17.0 / 32
50.8%
+19
–   Andscacs 0.86 64-bit 4CPU3146+20
−20
(−1)17 − 13
(+10−6=14)
56.7%
17.0 / 30
54.0%
+37
–   Critter 1.2 64-bit 4CPU3145+20
−20
(−2)67.5 − 67.5
(+28−28=79)
50.0%
67.5 / 135
56.4%
−2
–   Stockfish 2.3.1 64-bit 4CPU3142+19
−19
(−5)18.5 − 13.5
(+10−5=17)
57.8%
18.5 / 32
67.3%
+39
–   NirvanaChess 2.2 64-bit 4CPU3139+17
−17
(−8)17.5 − 18.5
(+4−5=27)
48.6%
17.5 / 36
77.4%
−12
–   Protector 1.9.0 64-bit 4CPU3139+15
−15
(−8)19 − 21
(+6−8=26)
47.5%
19.0 / 40
81.7%
−22
–   Alfil 15.7 64-bit 4CPU3137+17
−17
(−10)18 − 14
(+10−6=16)
56.3%
18.0 / 32
84.2%
+25
–   Andscacs 0.85 64-bit 4CPU3133+25
−25
(−14)8.5 − 11.5
(+4−7=9)
42.5%
8.5 / 20
83.8%
−62
–   Chiron 3.01 64-bit 4CPU3129+24
−25
(−18)11 − 9
(+2−0=18)
55.0%
11.0 / 20
90.2%
+5
–   Stockfish 2.0.1 64-bit 4CPU3126+24
−24
(−21)33.5 − 28.5
(+17−12=33)
54.0%
33.5 / 62
93.8%
+3
–   BlackMamba 2.0 64-bit 4CPU3123+15
−15
(−24)18 − 14
(+11−7=14)
56.3%
18.0 / 32
99.7%
+14
–   Rybka 3 64-bit 4CPU3118+13
−13
(−29)35 − 21
(+20−6=30)
62.5%
35.0 / 56
100.0%
+45
–   Stockfish 1.9.1 64-bit 4CPU3114+22
−22
(−33)43 − 33
(+25−15=36)
56.6%
43.0 / 76
99.6%
+5
–   Komodo 5 64-bit3108+11
−11
(−39)18.5 − 13.5
(+9−4=19)
57.8%
18.5 / 32
100.0%
+7
–   Stockfish 1.8 64-bit 4CPU3107+18
−18
(−40)39 − 27
(+22−10=34)
59.1%
39.0 / 66
100.0%
+13
–   Stockfish 1.7.1 64-bit 4CPU3103+19
−18
(−44)51.5 − 35.5
(+22−6=59)
59.2%
51.5 / 87
100.0%
+6
–   Gull 2.2 64-bit 4CPU3098+25
−25
(−49)18 − 12
(+8−2=20)
60.0%
18.0 / 30
100.0%
+4
–   Komodo 4 64-bit3098+11
−11
(−49)48.5 − 32.5
(+27−11=43)
59.9%
48.5 / 81
100.0%
+8
–   NirvanaChess 2.1c 64-bit 4CPU3095+22
−23
(−52)1.5 − 2.5
(+0−1=3)
37.5%
1.5 / 4
100.0%
−119
–   Critter 1.01 64-bit 4CPU3087+27
−27
(−60)11.5 − 6.5
(+6−1=11)
63.9%
11.5 / 18
100.0%
+17
–   Critter 0.90 64-bit 4CPU3078+31
−31
(−69)20.5 − 13.5
(+13−6=15)
60.3%
20.5 / 34
100.0%
−5
–   Deep Fritz 14 64-bit 4CPU3072+16
−16
(−75)18 − 12
(+9−3=18)
60.0%
18.0 / 30
100.0%
−17
–   Naum 4.2 64-bit 4CPU3061+10
−10
(−86)32 − 25
(+12−5=40)
56.1%
32.0 / 57
100.0%
−53
–   Alfil 15.8 64-bit 4CPU3056+22
−22
(−91)2.5 − 1.5
(+2−1=1)
62.5%
2.5 / 4
100.0%
+4
–   Deep Fritz 13 4CPU3034+16
−16
(−113)23 − 7
(+17−1=12)
76.7%
23.0 / 30
100.0%
+59
–   Critter 0.80 64-bit 4CPU3033+31
−30
(−114)22 − 10
(+12−0=20)
68.8%
22.0 / 32
100.0%
−10
–   Deep Junior 13 64-bit 4CPU3027+16
−16
(−120)22 − 10
(+15−3=14)
68.8%
22.0 / 32
100.0%
−3
–   Deep Shredder 12 64-bit 4CPU3018+10
−10
(−129)43.5 − 12.5
(+31−0=25)
77.7%
43.5 / 56
100.0%
+47
–   Deep Junior 13.3 64-bit 4CPU3018+18
−18
(−129)31.5 − 12.5
(+22−3=19)
71.6%
31.5 / 44
100.0%
+8
–   Spike 1.4 Leiden 4CPU3016+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
(−179)40 − 13
(+29−2=22)
75.5%
40.0 / 53
100.0%
−14
–   Komodo 1.2 64-bit2945+16
−16
(−202)52 − 17
(+37−2=30)
75.4%
52.0 / 69
100.0%
−40
–   Onno 1.2.70 64-bit 4CPU2933+19
−19
(−214)1 − 1
(+1−1=0)
50.0%
1.0 / 2
100.0%
−214
–   Spark 0.4 64-bit 4CPU2932+21
−21
(−215)58.5 − 15.5
(+47−4=23)
79.1%
58.5 / 74
100.0%
−10
–   Thinker 5.4d Inert 64-bit 4CPU2926+22
−23
(−221)2 − 0
(+2−0=0)
100.0%
2.0 / 2
100.0%
+INF
–   Deep Sjeng WC2008 64-bit 4CPU2925+12
−12
(−222)35.5 − 8.5
(+31−4=9)
80.7%
35.5 / 44
100.0%
+15
–   Thinker 5.4c Inert 64-bit 4CPU2923+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 August 1, 2020