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 2.1 64-bit 4CPU (2996+29
−29
)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
–   Fizbo 1.7 64-bit 4CPU3119+27
−27
(+123)5.5 − 4.5
(+3−2=5)
55.0%
5.5 / 10
0.0%
+150
0 = 1 = = 1 1 = = 0
–   Arasan 20.4.1 64-bit 4CPU3118+26
−25
(+122)4 − 6
(+2−4=4)
40.0%
4.0 / 10
0.0%
+59
= = = 1 0 = 0 0 0 1
–   ChessBrainVB 3.66 4CPU3104+28
−28
(+108)6.5 − 9.5
(+5−8=3)
40.6%
6.5 / 16
0.0%
+39
0 1 1 0 = 0 = 0 0 0 0 1 0 1 1 =
–   Xiphos 0.2.2 64-bit 4CPU3101+26
−26
(+105)5 − 11
(+2−8=6)
31.3%
5.0 / 16
0.0%
−11
0 0 0 0 = 1 = 1 = 0 0 0 = = = 0
–   Rybka 4 64-bit3075+11
−11
(+79)0.5 − 0.5
(+0−0=1)
50.0%
0.5 / 1
0.0%
+48
=
–   Andscacs 0.81 64-bit 4CPU3075+31
−31
(+79)0.5 − 1.5
(+0−1=1)
25.0%
0.5 / 2
0.0%
−77
0 =
–   Wasp 3.0 64-bit 4CPU3059+25
−25
(+63)5.5 − 10.5
(+1−6=9)
34.4%
5.5 / 16
0.1%
−29
0 = 0 0 = = = = 1 0 0 = 0 = = =
–   Arasan 19.2 64-bit 4CPU3041+31
−31
(+45)12.5 − 19.5
(+4−11=17)
39.1%
12.5 / 32
1.6%
−16
0 0 = = = 1 = = 1 = = 1 = 0 = = = 1 0 = = = = 0 = 0 0 0 0 0 0 =
–   Deep Junior 13 64-bit 4CPU3026+16
−16
(+30)1.5 − 0.5
(+1−0=1)
75.0%
1.5 / 2
4.5%
+172
= 1
–   Senpai 1.0 64-bit 4CPU3022+16
−17
(+26)1 − 1
(+0−0=2)
50.0%
1.0 / 2
6.9%
+26
= =
–   Andscacs 0.80 64-bit 4CPU3022+31
−31
(+26)0.5 − 0.5
(+0−0=1)
50.0%
0.5 / 1
12.2%
+56
=
–   Deep Shredder 12 64-bit 4CPU3016+10
−10
(+20)1 − 0
(+1−0=0)
100.0%
1.0 / 1
10.5%
+INF
1
–   Spike 1.4 Leiden 4CPU3015+11
−11
(+19)1 − 1
(+0−0=2)
50.0%
1.0 / 2
12.5%
+19
= =
–   Cheng 4.39 64-bit 4CPU3008+15
−15
(+12)2.5 − 7.5
(+1−6=3)
25.0%
2.5 / 10
23.8%
−159
0 0 0 = 0 0 = 1 = 0
–   Fizbo 1.5 64-bit 4CPU2992+27
−27
(−4)6.5 − 3.5
(+4−1=5)
65.0%
6.5 / 10
59.6%
+90
1 1 = 0 = = = 1 = 1
–   Cheng4 0.38 64-bit 4CPU2979+24
−24
(−17)1.5 − 0.5
(+1−0=1)
75.0%
1.5 / 2
81.3%
+139
= 1
–   Bobcat 7.6 64-bit 4CPU2977+31
−31
(−19)9 − 5
(+6−2=6)
64.3%
9.0 / 14
81.3%
+68
= = 1 1 = = 1 1 1 0 = = 1 0
–   Rybka 2.2 64-bit 4CPU2973+20
−19
(−23)14 − 16
(+4−6=20)
46.7%
14.0 / 30
91.3%
−39
= = 0 = 0 = = = 0 1 = = = = 1 = = = 0 = = = 1 0 = = 1 0 = =
–   Spark 1.0 64-bit 4CPU2968+13
−13
(−28)1 − 1
(+1−1=0)
50.0%
1.0 / 2
95.9%
−28
1 0
–   Zappa Mexico II 64-bit 4CPU2967+10
−10
(−29)1 − 0
(+1−0=0)
100.0%
1.0 / 1
96.6%
+INF
1
–   Zappa Mexico 64-bit 4CPU2958+15
−15
(−38)5 − 3
(+4−2=2)
62.5%
5.0 / 8
98.8%
+49
1 0 1 0 1 = = 1
–   Komodo 1.2 64-bit2945+16
−16
(−51)0.5 − 0.5
(+0−0=1)
50.0%
0.5 / 1
99.9%
−20
=
–   Gaviota 1.0 64-bit 4CPU2941+16
−16
(−55)1.5 − 0.5
(+1−0=1)
75.0%
1.5 / 2
99.9%
+101
1 =
–   Arasan 17.5 64-bit 4CPU2933+27
−27
(−63)1 − 1
(+0−0=2)
50.0%
1.0 / 2
99.9%
−63
= =
–   Onno 1.2.70 64-bit 4CPU2932+19
−19
(−64)2 − 1
(+1−0=2)
66.7%
2.0 / 3
100.0%
+18
1 = =
–   EXchess 7.71b 64-bit 4CPU2931+28
−28
(−65)2 − 0
(+2−0=0)
100.0%
2.0 / 2
99.9%
+INF
1 1
–   Fizbo 1.4 64-bit 4CPU2931+28
−28
(−65)2 − 0
(+2−0=0)
100.0%
2.0 / 2
99.9%
+INF
1 1
–   Ethereal 8.62 64-bit 4CPU2930+22
−22
(−66)8.5 − 7.5
(+5−4=7)
53.1%
8.5 / 16
100.0%
−48
0 = 0 = = 1 1 1 1 = 0 = = 0 = 1
–   Thinker 5.4d Inert 64-bit 4CPU2925+23
−23
(−71)1 − 1
(+0−0=2)
50.0%
1.0 / 2
100.0%
−71
= =
–   Rybka 2.2 64-bit2921+29
−28
(−75)1.5 − 0.5
(+1−0=1)
75.0%
1.5 / 2
100.0%
+81
1 =
–   Toga II 3.0 4CPU2917+22
−23
(−79)2 − 0
(+2−0=0)
100.0%
2.0 / 2
100.0%
+INF
1 1
–   Deep Shredder 11 64-bit 4CPU2915+12
−12
(−81)2 − 2
(+1−1=2)
50.0%
2.0 / 4
100.0%
−81
= = 1 0
–   Naum 2.2 64-bit 4CPU2903+18
−17
(−93)1 − 1
(+0−0=2)
50.0%
1.0 / 2
100.0%
−93
= =
–   Tornado 7.0 64-bit 4CPU2892+25
−25
(−104)2 − 0
(+2−0=0)
100.0%
2.0 / 2
100.0%
+INF
1 1
–   Toga II 1.4 beta5c 4CPU2884+18
−18
(−112)1 − 1
(+0−0=2)
50.0%
1.0 / 2
100.0%
−112
= =
–   Loop M1-T 64-bit 4CPU2848+12
−12
(−148)2.5 − 0.5
(+2−0=1)
83.3%
2.5 / 3
100.0%
+79
= 1 1
–   Loop 13.6 (Loop 2007) 64-bit 4CPU2837+19
−19
(−159)1.5 − 0.5
(+1−0=1)
75.0%
1.5 / 2
100.0%
−2
= 1
–   Deep Shredder 10 64-bit 4CPU2831+17
−17
(−165)23 − 7
(+18−2=10)
76.7%
23.0 / 30
100.0%
+14
1 1 = = = 1 1 1 1 1 1 = 0 = 0 1 1 1 1 1 1 1 1 1 = = = = 1 =
–   Bright 0.3a 4CPU2829+18
−18
(−167)1.5 − 0.5
(+1−0=1)
75.0%
1.5 / 2
100.0%
−10
= 1
–   Glaurung 2.0.1 64-bit 4CPU2828+17
−17
(−168)1 − 1
(+0−0=2)
50.0%
1.0 / 2
100.0%
−168
= =
–   Naum 2.2 64-bit2797+25
−25
(−199)1.5 − 0.5
(+1−0=1)
75.0%
1.5 / 2
100.0%
−42
1 =
–   Fruit 05/11/032773+20
−20
(−223)2 − 0
(+2−0=0)
100.0%
2.0 / 2
100.0%
+INF
1 1
–   Loop M1-T 64-bit2769+30
−30
(−227)2 − 0
(+2−0=0)
100.0%
2.0 / 2
100.0%
+INF
1 1
–   Loop 10.32f2765+19
−19
(−231)24.5 − 5.5
(+21−2=7)
81.7%
24.5 / 30
100.0%
+10
1 1 0 1 1 = 1 = 1 1 = 1 1 1 1 1 1 1 1 1 = 1 1 1 = = = 1 0 1
–   Toga II 1.2.1a 32-bit2759+12
−12
(−237)23.5 − 6.5
(+18−1=11)
78.3%
23.5 / 30
100.0%
−49
= 1 = 1 = = 1 1 1 0 = = = 1 1 1 = 1 = 1 1 = 1 1 1 1 = 1 1 1
–   Hiarcs X54 Hypermodern 32-bit2755+29
−28
(−241)1.5 − 0.5
(+1−0=1)
75.0%
1.5 / 2
100.0%
−84
= 1
–   Spike 1.2 Turin2745+7
−7
(−251)22 − 7
(+17−2=10)
75.9%
22.0 / 29
100.0%
−72
0 1 1 1 1 = 1 = = 1 1 1 = 1 = 1 = 1 1 = = = 1 1 1 0 1 = 1
–   Hiarcs X502744+19
−19
(−252)24.5 − 5.5
(+21−2=7)
81.7%
24.5 / 30
100.0%
−14
1 1 1 1 = 1 = 1 = = 1 1 1 1 1 1 0 1 1 = 1 = 1 1 1 0 1 1 1 =
–   Scorpio 2.0 32-bit 4CPU2731+24
−24
(−265)3 − 1
(+3−1=0)
75.0%
3.0 / 4
100.0%
−30
0 1 1 1

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