CCRL 40/40
Downloads and Statistics
February 17, 2018
Testing summary:
Total: 795'341 games
played by 2'045 programs
110322 CPU days (X2 4600+)

White wins: 272'710 (34.3%)
Black wins: 201'857 (25.4%)
Draws: 320'774 (40.3%)
White score: 54.5%

Engine Details

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Rybka 2.2 64-bit 4CPU (2978+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
–   Defenchess (SCTR) 1.1f 64-bit 4CPU3068+27
−27
(+90)7.5 − 12.5
(+3−8=9)
37.5%
7.5 / 20
0.0%
+14
= = = 0 = 0 0 = = = 0 1 0 0 0 1 1 0 = =
–   Rybka 2.1 64-bit 4CPU3000+32
−31
(+22)16 − 14
(+6−4=20)
53.3%
16.0 / 30
11.8%
+38
= = 1 = 1 = = = 1 0 = = = = 0 = = = 1 = = = 0 1 = = 0 1 = =
–   Stockfish 1.5.1 64-bit 4CPU2974+25
−24
(−4)30.5 − 33.5
(+14−17=33)
47.7%
30.5 / 64
60.0%
−16
= = 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 4CPU2964+29
−29
(−14)5 − 5
(+2−2=6)
50.0%
5.0 / 10
78.1%
−14
1 = = = = = = 0 1 0
–   Stockfish 1.4 64-bit 4CPU2952+17
−17
(−26)66 − 57
(+37−28=58)
53.7%
66.0 / 123
98.0%
−3
= 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
(−28)31 − 29
(+17−15=28)
51.7%
31.0 / 60
96.6%
−16
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
(−51)15.5 − 16.5
(+5−6=21)
48.4%
15.5 / 32
100.0%
−61
= = = = = 0 1 1 = = = = = 1 = 0 = = 1 0 1 0 = = 0 0 = = = = = =
–   Toga II 1.4.1SE 4CPU2908+13
−13
(−70)17.5 − 14.5
(+10−7=15)
54.7%
17.5 / 32
100.0%
−40
= = = = 0 = 0 1 0 = = 1 0 1 1 0 = = = 1 = = = 1 = 1 0 1 = 1 0 1
–   Bright 0.4a 4CPU2901+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 =
–   Glaurung 2.2 64-bit 4CPU2900+16
−16
(−78)19 − 13
(+13−7=12)
59.4%
19.0 / 32
100.0%
−18
1 = 0 1 1 1 = 0 1 0 = 0 1 = 1 1 = 1 = 0 1 0 1 = = = 1 = 1 = = 0
–   Hiarcs 11.1 4CPU2879+17
−17
(−99)25.5 − 9.5
(+19−3=13)
72.9%
25.5 / 35
100.0%
+49
= = = 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
(−112)23 − 9
(+15−1=16)
71.9%
23.0 / 32
100.0%
+22
= 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
(−136)25.5 − 8.5
(+18−1=15)
75.0%
25.5 / 34
100.0%
+21
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
(−145)25 − 6
(+21−2=8)
80.6%
25.0 / 31
100.0%
+77
1 0 = 1 1 = = 0 1 1 1 1 1 1 = 1 = 1 1 = = 1 1 = 1 1 1 1 1 1 1
–   Deep Fritz 10 4CPU2832+20
−20
(−146)24.5 − 5.5
(+19−0=11)
81.7%
24.5 / 30
100.0%
+70
= 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
(−173)26 − 5
(+23−2=6)
83.9%
26.0 / 31
100.0%
+95
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+18
−19
(−211)26 − 6
(+21−1=10)
81.3%
26.0 / 32
100.0%
+8
1 1 1 = = 1 0 1 1 1 1 1 = 1 1 = = = 1 1 1 = 1 1 = = 1 = 1 1 1 1
–   Crafty 23.0 64-bit 4CPU2761+18
−18
(−217)25.5 − 6.5
(+20−1=11)
79.7%
25.5 / 32
100.0%
−12
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
(−218)23 − 7
(+17−1=12)
76.7%
23.0 / 30
100.0%
−49
= 1 = 1 = 1 1 1 1 0 = = 1 = = 1 1 1 = 1 = 1 1 1 = = 1 1 1 =
–   Spike 1.2 Turin2746+7
−7
(−232)26 − 4
(+22−0=8)
86.7%
26.0 / 30
100.0%
+41
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 4CPU2734+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
(−257)25 − 7
(+20−2=10)
78.1%
25.0 / 32
100.0%
−61
1 = 1 = 1 = 1 1 1 1 = 1 = = 1 = 1 1 1 = 1 0 = 1 1 1 1 1 1 1 = 0

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Created in 2005-2013 by CCRL team
Last games added on February 17, 2018