CCRL 40/40
Downloads and Statistics
September 14, 2019
Testing summary:
Total: 1'083'337 games
played by 2'531 programs
147896 CPU days (X2 4600+)

White wins: 376'125 (34.7%)
Black wins: 279'699 (25.8%)
Draws: 427'513 (39.5%)
White score: 54.5%

Engine Details

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Rybka 2.2 64-bit 4CPU (2976+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 4CPU3124+26
−26
(+148)5.5 − 10.5
(+3−8=5)
34.4%
5.5 / 16
0.0%
+41
= 0 0 = 0 0 0 = 1 1 0 0 0 = = 1
–   Defenchess 1.1f 64-bit 4CPU3066+18
−18
(+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 = =
–   Pirarucu 2.9.5 64-bit 4CPU3025+36
−36
(+49)4.5 − 7.5
(+3−6=3)
37.5%
4.5 / 12
1.5%
−39
0 1 0 = = 0 0 1 0 = 0 1
–   Rybka 2.1 64-bit 4CPU2998+29
−29
(+22)16 − 14
(+6−4=20)
53.3%
16.0 / 30
10.5%
+38
= = 1 = 1 = = = 1 0 = = = = 0 = = = 1 = = = 0 1 = = 0 1 = =
–   Stockfish 1.5.1 64-bit 4CPU2971+25
−25
(−5)30.5 − 33.5
(+14−17=33)
47.7%
30.5 / 64
63.0%
−17
= = 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 4CPU2958+29
−29
(−18)5 − 5
(+2−2=6)
50.0%
5.0 / 10
83.2%
−18
1 0 1 = = = = = = 0
–   Stockfish 1.4 64-bit 4CPU2949+17
−17
(−27)66 − 57
(+37−28=58)
53.7%
66.0 / 123
98.3%
−4
= 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 4CPU2948+23
−23
(−28)31 − 29
(+17−15=28)
51.7%
31.0 / 60
96.5%
−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 4CPU2924+15
−15
(−52)15.5 − 16.5
(+5−6=21)
48.4%
15.5 / 32
100.0%
−62
= = = = = 0 1 1 = = = = = 1 = 0 = = 1 0 1 0 = = 0 0 = = = = = =
–   Toga II 1.4.1SE 4CPU2905+13
−13
(−71)17.5 − 14.5
(+10−7=15)
54.7%
17.5 / 32
100.0%
−41
= = = = 0 = 0 1 0 = = 1 0 1 1 0 = = = 1 = = = 1 = 1 0 1 = 1 0 1
–   Bright 0.4a 4CPU2898+15
−15
(−78)17 − 15
(+12−10=10)
53.1%
17.0 / 32
100.0%
−54
= 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 4CPU2897+16
−16
(−79)19 − 13
(+13−7=12)
59.4%
19.0 / 32
100.0%
−19
1 = 0 1 1 1 = 0 1 0 = 0 1 = 1 1 = 1 = 0 1 0 1 = = = 1 = 1 = = 0
–   Hiarcs 11.1 4CPU2877+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 4CPU2865+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 4CPU2839+19
−19
(−137)25.5 − 8.5
(+18−1=15)
75.0%
25.5 / 34
100.0%
+20
1 1 1 1 1 = = = 1 = 1 1 = 1 = 1 1 0 = = 1 = 1 = 1 1 1 = = 1 1 = = =
–   Deep Shredder 10 64-bit 4CPU2832+17
−17
(−144)25 − 6
(+21−2=8)
80.6%
25.0 / 31
100.0%
+78
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 4CPU2831+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 4CPU2803+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 4CPU2766+19
−19
(−210)26 − 6
(+21−1=10)
81.3%
26.0 / 32
100.0%
+9
1 1 = = 1 0 1 1 1 1 1 = 1 = 1 1 1 = 1 1 = = 1 = 1 1 1 1 1 = = 1
–   Crafty 23.0 64-bit 4CPU2760+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
(−216)23 − 7
(+17−1=12)
76.7%
23.0 / 30
100.0%
−47
= 1 = 1 = 1 1 1 1 0 = = 1 = = 1 1 1 = 1 = 1 1 1 = = 1 1 1 =
–   Spike 1.2 Turin2746+7
−7
(−230)26 − 4
(+22−0=8)
86.7%
26.0 / 30
100.0%
+43
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 4CPU2732+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 4CPU2720+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

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Created in 2005-2013 by CCRL team
Last games added on September 14, 2019