CCRL 40/40
Downloads and Statistics
November 18, 2017
Testing summary:
Total: 756'425 games
played by 1'967 programs
103446 CPU days (X2 4600+)

White wins: 259'856 (34.4%)
Black wins: 192'693 (25.5%)
Draws: 303'876 (40.2%)
White score: 54.4%

Engine Details

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Rybka 2.2 64-bit 4CPU (2977+21
−20
)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
–   Rybka 2.1 64-bit 4CPU3003+33
−32
(+26)16 − 14
(+6−4=20)
53.3%
16.0 / 30
9.3%
+42
= = 1 = 1 = = = 1 0 = = = = 0 = = = 1 = = = 0 1 = = 0 1 = =
–   Stockfish 1.5.1 64-bit 4CPU2974+25
−24
(−3)30.5 − 33.5
(+14−17=33)
47.7%
30.5 / 64
58.9%
−15
= = 0 1 = = 0 0 = 0 = 0 = 0 0 = 1 = 1 0 = = 1 = 1 = = = 1 = 1 = 0 = = = 1 0 = = 1 1 = = 0 1 = = = 1 0 0 1 = = = = 1 = 0 0 0 0 =
–   EXchess 7.88b 64-bit 4CPU2965+29
−29
(−12)5 − 5
(+2−2=6)
50.0%
5.0 / 10
75.0%
−12
1 = = = = = = 0 1 0
–   Stockfish 1.4 64-bit 4CPU2952+17
−17
(−25)66 − 57
(+37−28=58)
53.7%
66.0 / 123
97.8%
−2
= 1 0 = = 1 0 = 0 = 1 = = = 1 = = 1 = 0 = 1 = = = 1 1 0 0 = 0 = 1 = = 0 1 0 1 = 1 0 0 0 1 0 = 1 1 0 = 1 1 = = 1 = 0 = = 1 = = = = 0 = = 1 1 1 1 0 = 0 = 0 = = 0 1 = 1 = 1 = = 1 = 0 0 = 0 = 1 = = 0 1 0 = 1 0 1 1 = = = = = 1 = = = 1 1 1 0 0 = 1 = =
–   Zap!Chess Zanzibar 64-bit 4CPU2950+23
−23
(−27)31 − 29
(+17−15=28)
51.7%
31.0 / 60
96.5%
−15
0 = = = = 1 0 0 = = 1 1 0 1 = 1 = = 0 1 = = 0 0 = 0 = 0 0 1 = = 0 0 1 0 = 1 1 = 1 = = 0 1 1 = = = = = 1 = 0 = 1 1 1 = =
–   Thinker 5.4c Inert 64-bit 4CPU2927+15
−15
(−50)15.5 − 16.5
(+5−6=21)
48.4%
15.5 / 32
100.0%
−60
= = = = = 0 1 1 = = = = = 1 = 0 = = 1 0 1 0 = = 0 0 = = = = = =
–   Toga II 1.4.1SE 4CPU2908+13
−13
(−69)17.5 − 14.5
(+10−7=15)
54.7%
17.5 / 32
100.0%
−39
= = = = 0 = 0 1 0 = = 1 0 1 1 0 = = = 1 = = = 1 = 1 0 1 = 1 0 1
–   Glaurung 2.2 64-bit 4CPU2900+16
−16
(−77)19 − 13
(+13−7=12)
59.4%
19.0 / 32
100.0%
−17
1 = 0 1 1 1 = 0 1 0 = 0 1 = 1 1 = 1 = 0 1 0 1 = = = 1 = 1 = = 0
–   Bright 0.4a 4CPU2900+15
−15
(−77)17 − 15
(+12−10=10)
53.1%
17.0 / 32
100.0%
−53
= 1 0 1 = = = 1 0 0 = 0 = 0 = 1 0 1 0 1 = = 0 1 1 1 1 1 0 1 0 =
–   Hiarcs 11.1 4CPU2879+17
−17
(−98)25.5 − 9.5
(+19−3=13)
72.9%
25.5 / 35
100.0%
+50
= = = 1 0 0 = 1 = 1 1 1 1 1 1 = = 1 1 1 1 = = = 1 1 1 1 = 1 = 1 0 = 1
–   Naum 2.1 64-bit 4CPU2866+21
−21
(−111)23 − 9
(+15−1=16)
71.9%
23.0 / 32
100.0%
+23
= 1 = 0 1 = = 1 = = = 1 = 1 = 1 1 1 = 1 = 1 1 = = 1 1 1 = = = 1
–   Loop 13.6 (Loop 2007) 64-bit 4CPU2842+19
−19
(−135)25.5 − 8.5
(+18−1=15)
75.0%
25.5 / 34
100.0%
+22
1 1 1 1 1 = = = 1 = 1 1 = 1 = 1 1 0 = = 1 = 1 = 1 1 1 = = 1 1 = = =
–   Deep Shredder 10 64-bit 4CPU2833+17
−17
(−144)25 − 6
(+21−2=8)
80.6%
25.0 / 31
100.0%
+78
1 1 0 = 1 1 = = 0 1 1 1 1 1 1 = 1 = 1 1 = = 1 1 = 1 1 1 1 1 1
–   Deep Fritz 10 4CPU2832+20
−20
(−145)24.5 − 5.5
(+19−0=11)
81.7%
24.5 / 30
100.0%
+71
= 1 = 1 = 1 1 = = = 1 1 1 = 1 1 1 1 1 1 = 1 = 1 1 1 1 = 1 =
–   Deep Junior 10 4CPU2805+14
−14
(−172)26 − 5
(+23−2=6)
83.9%
26.0 / 31
100.0%
+96
1 1 1 1 1 1 1 1 1 1 1 0 1 1 1 0 1 1 1 = = 1 1 = = 1 = = 1 1 1
–   Glaurung 1.2.1 64-bit 4CPU2767+19
−19
(−210)26 − 6
(+21−1=10)
81.3%
26.0 / 32
100.0%
+9
1 1 = = 1 1 = = 1 0 1 1 1 1 1 = 1 = 1 1 1 = 1 1 = = 1 = 1 1 1 1
–   Crafty 23.0 64-bit 4CPU2761+18
−18
(−216)25.5 − 6.5
(+20−1=11)
79.7%
25.5 / 32
100.0%
−11
1 = 1 = 1 1 1 1 1 = = = 1 0 1 = 1 = 1 1 1 = = = 1 = 1 1 1 1 1 1
–   Toga II 1.2.1a 32-bit2760+12
−12
(−217)23 − 7
(+17−1=12)
76.7%
23.0 / 30
100.0%
−48
= 1 = 1 = 1 1 1 1 0 = = 1 = = 1 1 1 = 1 = 1 1 1 = = 1 1 1 =
–   Spike 1.2 Turin2746+7
−7
(−231)26 − 4
(+22−0=8)
86.7%
26.0 / 30
100.0%
+42
1 1 1 = 1 1 = = 1 1 1 1 = = 1 1 1 1 1 = 1 1 = 1 = 1 1 1 1 1
–   Scorpio 2.0 32-bit 4CPU2733+24
−24
(−244)25.5 − 5.5
(+21−1=9)
82.3%
25.5 / 31
100.0%
−10
1 1 0 1 = = 1 1 1 1 1 1 1 1 1 = 1 = 1 1 1 = = = 1 1 = = 1 1 1
–   Scorpio 2.1 64-bit 4CPU2721+27
−27
(−256)25 − 7
(+20−2=10)
78.1%
25.0 / 32
100.0%
−60
1 = 1 = 1 = 1 1 1 1 = 1 = = 1 = 1 1 1 = 1 0 = 1 1 1 1 1 1 1 = 0

Rating changes by day

Rating changes with played games

Participation in the pure lists

Pure listRankRatingNumber of games
Rybka 2.2 64-bit 4CPU
played with current
participants of this list
Represented by
All    96Rybka 4 64-bit 4CPU

Created in 2005-2013 by CCRL team
Last games added on November 18, 2017