CCRL 40/40
Downloads and Statistics
January 20, 2018
Testing summary:
Total: 783'129 games
played by 2'026 programs
108312 CPU days (X2 4600+)

White wins: 268'533 (34.3%)
Black wins: 198'801 (25.4%)
Draws: 315'795 (40.3%)
White score: 54.5%

Engine Details

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Rybka 2.1 64-bit 4CPU (3000+32
−31
)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 4CPU3125+27
−27
(+125)5.5 − 4.5
(+3−2=5)
55.0%
5.5 / 10
0.0%
+152
0 = 1 = = 1 1 = = 0
–   Andscacs 0.81 64-bit 4CPU3084+32
−32
(+84)0.5 − 1.5
(+0−1=1)
25.0%
0.5 / 2
0.0%
−72
0 =
–   Rybka 4 64-bit3080+11
−11
(+80)0.5 − 0.5
(+0−0=1)
50.0%
0.5 / 1
0.0%
+49
=
–   Arasan 19.2 64-bit 4CPU3050+31
−31
(+50)12.5 − 19.5
(+4−11=17)
39.1%
12.5 / 32
1.1%
−11
0 0 = = = 1 = = 1 = = 1 = 0 = = = 1 0 = = = = 0 = 0 0 0 0 0 0 =
–   Deep Junior 13 64-bit 4CPU3033+16
−16
(+33)1.5 − 0.5
(+1−0=1)
75.0%
1.5 / 2
3.7%
+175
1 =
–   Senpai 1.0 64-bit 4CPU3031+16
−16
(+31)1 − 1
(+0−0=2)
50.0%
1.0 / 2
4.7%
+31
= =
–   Andscacs 0.80 64-bit 4CPU3030+31
−31
(+30)0.5 − 0.5
(+0−0=1)
50.0%
0.5 / 1
9.5%
+60
=
–   Deep Shredder 12 64-bit 4CPU3024+10
−10
(+24)1 − 0
(+1−0=0)
100.0%
1.0 / 1
8.1%
+INF
1
–   Spike 1.4 Leiden 4CPU3023+11
−11
(+23)1 − 1
(+0−0=2)
50.0%
1.0 / 2
9.2%
+23
= =
–   Cheng 4.39 64-bit 4CPU3013+17
−18
(+13)2.5 − 7.5
(+1−6=3)
25.0%
2.5 / 10
24.0%
−158
= 1 = 0 0 0 0 = 0 0
–   Fizbo 1.5 64-bit 4CPU2998+27
−27
(−2)6.5 − 3.5
(+4−1=5)
65.0%
6.5 / 10
53.0%
+92
= 1 = 0 = = = 1 1 1
–   Cheng4 0.38 64-bit 4CPU2987+24
−24
(−13)1.5 − 0.5
(+1−0=1)
75.0%
1.5 / 2
73.8%
+143
= 1
–   Bobcat 7.6 64-bit 4CPU2986+32
−32
(−14)9 − 5
(+6−2=6)
64.3%
9.0 / 14
72.8%
+73
= = 1 0 = = 1 1 = = 1 1 1 0
–   Rybka 2.2 64-bit 4CPU2978+20
−20
(−22)14 − 16
(+4−6=20)
46.7%
14.0 / 30
88.0%
−38
= = 0 = 0 = = = 0 1 = = = = 1 = = = 0 = = = 1 0 = = 1 0 = =
–   Spark 1.0 64-bit 4CPU2975+13
−13
(−25)1 − 1
(+1−1=0)
50.0%
1.0 / 2
92.0%
−25
1 0
–   Zappa Mexico II 64-bit 4CPU2973+10
−10
(−27)1 − 0
(+1−0=0)
100.0%
1.0 / 1
94.0%
+INF
1
–   Zappa Mexico 64-bit 4CPU2962+15
−15
(−38)5 − 3
(+4−2=2)
62.5%
5.0 / 8
98.3%
+49
1 = 1 0 1 = 1 0
–   Komodo 1.2 64-bit2950+16
−16
(−50)0.5 − 0.5
(+0−0=1)
50.0%
0.5 / 1
99.7%
−19
=
–   Gaviota 1.0 64-bit 4CPU2944+18
−18
(−56)1.5 − 0.5
(+1−0=1)
75.0%
1.5 / 2
99.9%
+100
= 1
–   Arasan 17.5 64-bit 4CPU2940+27
−27
(−60)1 − 1
(+0−0=2)
50.0%
1.0 / 2
99.7%
−60
= =
–   Ethereal 8.62 64-bit 4CPU2939+26
−26
(−61)8.5 − 7.5
(+5−4=7)
53.1%
8.5 / 16
99.8%
−43
0 = 0 = = 1 1 1 1 = 0 = = 0 = 1
–   Onno 1.2.70 64-bit 4CPU2938+20
−20
(−62)2 − 1
(+1−0=2)
66.7%
2.0 / 3
99.9%
+20
= = 1
–   EXchess 7.71b 64-bit 4CPU2937+28
−28
(−63)2 − 0
(+2−0=0)
100.0%
2.0 / 2
99.8%
+INF
1 1
–   Fizbo 1.4 64-bit 4CPU2937+28
−28
(−63)2 − 0
(+2−0=0)
100.0%
2.0 / 2
99.8%
+INF
1 1
–   Thinker 5.4d Inert 64-bit 4CPU2932+23
−23
(−68)1 − 1
(+0−0=2)
50.0%
1.0 / 2
100.0%
−68
= =
–   Toga II 3.0 4CPU2929+23
−23
(−71)2 − 0
(+2−0=0)
100.0%
2.0 / 2
100.0%
+INF
1 1
–   Rybka 2.2 64-bit2921+29
−29
(−79)1.5 − 0.5
(+1−0=1)
75.0%
1.5 / 2
100.0%
+77
1 =
–   Deep Shredder 11 64-bit 4CPU2920+12
−12
(−80)2 − 2
(+1−1=2)
50.0%
2.0 / 4
100.0%
−80
1 0 = =
–   Naum 2.2 64-bit 4CPU2906+18
−17
(−94)1 − 1
(+0−0=2)
50.0%
1.0 / 2
100.0%
−94
= =
–   Tornado 7.0 64-bit 4CPU2900+25
−25
(−100)2 − 0
(+2−0=0)
100.0%
2.0 / 2
100.0%
+INF
1 1
–   Toga II 1.4 beta5c 4CPU2888+18
−18
(−112)1 − 1
(+0−0=2)
50.0%
1.0 / 2
100.0%
−112
= =
–   Loop M1-T 64-bit 4CPU2852+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 4CPU2842+19
−19
(−158)1.5 − 0.5
(+1−0=1)
75.0%
1.5 / 2
100.0%
−1
= 1
–   Bright 0.3a 4CPU2833+18
−18
(−167)1.5 − 0.5
(+1−0=1)
75.0%
1.5 / 2
100.0%
−10
= 1
–   Deep Shredder 10 64-bit 4CPU2833+17
−17
(−167)23 − 7
(+18−2=10)
76.7%
23.0 / 30
100.0%
+12
1 1 = = = 1 1 1 1 1 1 = 0 = 0 1 1 1 1 1 1 1 1 1 = = = = 1 =
–   Glaurung 2.0.1 64-bit 4CPU2831+17
−17
(−169)1 − 1
(+0−0=2)
50.0%
1.0 / 2
100.0%
−169
= =
–   Naum 2.2 64-bit2799+25
−25
(−201)1.5 − 0.5
(+1−0=1)
75.0%
1.5 / 2
100.0%
−44
1 =
–   Fruit 05/11/032774+20
−20
(−226)2 − 0
(+2−0=0)
100.0%
2.0 / 2
100.0%
+INF
1 1
–   Loop M1-T 64-bit2772+30
−30
(−228)2 − 0
(+2−0=0)
100.0%
2.0 / 2
100.0%
+INF
1 1
–   Loop 10.32f2766+19
−19
(−234)24.5 − 5.5
(+21−2=7)
81.7%
24.5 / 30
100.0%
+7
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-bit2760+12
−12
(−240)23.5 − 6.5
(+18−1=11)
78.3%
23.5 / 30
100.0%
−52
= 1 = 1 = = 1 1 1 0 = = = 1 1 1 = 1 = 1 1 = 1 1 1 1 = 1 1 1
–   Hiarcs X54 Hypermodern 32-bit2757+29
−28
(−243)1.5 − 0.5
(+1−0=1)
75.0%
1.5 / 2
100.0%
−86
= 1
–   Spike 1.2 Turin2746+7
−7
(−254)22 − 7
(+17−2=10)
75.9%
22.0 / 29
100.0%
−75
1 1 1 1 = 1 = = 1 1 1 = 1 = 1 = 1 1 = = = 1 1 1 0 1 = 1 0
–   Hiarcs X502745+19
−19
(−255)24.5 − 5.5
(+21−2=7)
81.7%
24.5 / 30
100.0%
−17
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 4CPU2734+24
−24
(−266)3 − 1
(+3−1=0)
75.0%
3.0 / 4
100.0%
−31
1 1 0 1

Rating changes by day

Rating changes with played games

Participation in the pure lists

Pure listRankRatingNumber of games
Rybka 2.1 64-bit 4CPU
played with current
participants of this list
Represented by
All    10Rybka 4 64-bit 4CPU

Created in 2005-2013 by CCRL team
Last games added on January 20, 2018