CCRL 40/40
Downloads and Statistics
July 19, 2019
Testing summary:
Total: 1'068'538 games
played by 2'502 programs
146028 CPU days (X2 4600+)

White wins: 371'241 (34.7%)
Black wins: 276'263 (25.9%)
Draws: 421'034 (39.4%)
White score: 54.4%

Engine Details

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Rybka 2.2 64-bit 4CPU (2975+20
−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
–   ChessBrainVB 3.68 4CPU3123+26
−26
(+148)5.5 − 10.5
(+3−8=5)
34.4%
5.5 / 16
0.0%
+41
–   Defenchess (SCTR) 1.1f 64-bit 4CPU3065+19
−19
(+90)7.5 − 12.5
(+3−8=9)
37.5%
7.5 / 20
0.0%
+14
–   Pirarucu 2.9.5 64-bit 4CPU3022+35
−35
(+47)4.5 − 7.5
(+3−6=3)
37.5%
4.5 / 12
1.6%
−41
–   Rybka 2.1 64-bit 4CPU2997+29
−29
(+22)16 − 14
(+6−4=20)
53.3%
16.0 / 30
10.5%
+38
–   Stockfish 1.5.1 64-bit 4CPU2970+25
−24
(−5)30.5 − 33.5
(+14−17=33)
47.7%
30.5 / 64
63.0%
−17
–   EXchess 7.88b 64-bit 4CPU2957+29
−29
(−18)5 − 5
(+2−2=6)
50.0%
5.0 / 10
83.2%
−18
–   Stockfish 1.4 64-bit 4CPU2948+17
−17
(−27)66 − 57
(+37−28=58)
53.7%
66.0 / 123
98.3%
−4
–   Zap!Chess Zanzibar 64-bit 4CPU2948+23
−23
(−27)31 − 29
(+17−15=28)
51.7%
31.0 / 60
96.5%
−15
–   Thinker 5.4c Inert 64-bit 4CPU2923+15
−15
(−52)15.5 − 16.5
(+5−6=21)
48.4%
15.5 / 32
100.0%
−62
–   Toga II 1.4.1SE 4CPU2904+13
−13
(−71)17.5 − 14.5
(+10−7=15)
54.7%
17.5 / 32
100.0%
−41
–   Bright 0.4a 4CPU2897+15
−15
(−78)17 − 15
(+12−10=10)
53.1%
17.0 / 32
100.0%
−54
–   Glaurung 2.2 64-bit 4CPU2896+16
−16
(−79)19 − 13
(+13−7=12)
59.4%
19.0 / 32
100.0%
−19
–   Hiarcs 11.1 4CPU2876+17
−17
(−99)25.5 − 9.5
(+19−3=13)
72.9%
25.5 / 35
100.0%
+49
–   Naum 2.1 64-bit 4CPU2864+21
−21
(−111)23 − 9
(+15−1=16)
71.9%
23.0 / 32
100.0%
+23
–   Loop 13.6 (Loop 2007) 64-bit 4CPU2838+19
−19
(−137)25.5 − 8.5
(+18−1=15)
75.0%
25.5 / 34
100.0%
+20
–   Deep Shredder 10 64-bit 4CPU2831+17
−17
(−144)25 − 6
(+21−2=8)
80.6%
25.0 / 31
100.0%
+78
–   Deep Fritz 10 4CPU2830+20
−20
(−145)24.5 − 5.5
(+19−0=11)
81.7%
24.5 / 30
100.0%
+71
–   Deep Junior 10 4CPU2803+14
−14
(−172)26 − 5
(+23−2=6)
83.9%
26.0 / 31
100.0%
+96
–   Glaurung 1.2.1 64-bit 4CPU2765+19
−19
(−210)26 − 6
(+21−1=10)
81.3%
26.0 / 32
100.0%
+9
–   Toga II 1.2.1a 32-bit2759+12
−12
(−216)23 − 7
(+17−1=12)
76.7%
23.0 / 30
100.0%
−47
–   Crafty 23.0 64-bit 4CPU2759+18
−18
(−216)25.5 − 6.5
(+20−1=11)
79.7%
25.5 / 32
100.0%
−11
–   Spike 1.2 Turin2745+7
−7
(−230)26 − 4
(+22−0=8)
86.7%
26.0 / 30
100.0%
+43
–   Scorpio 2.0 32-bit 4CPU2732+24
−24
(−243)25.5 − 5.5
(+21−1=9)
82.3%
25.5 / 31
100.0%
−9
–   Scorpio 2.1 64-bit 4CPU2719+27
−27
(−256)25 − 7
(+20−2=10)
78.1%
25.0 / 32
100.0%
−60

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Created in 2005-2013 by CCRL team
Last games added on July 19, 2019