CCRL 40/15
Downloads and Statistics
November 16, 2024
Testing summary:
Total: 1'967'497 games
played by 3'973 programs

White wins: 610'660 (31.0%)
Black wins: 425'811 (21.6%)
Draws: 931'026 (47.3%)
White score: 54.7%

Engine Details

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Rybka 2.2 64-bit 4CPU (3003+16
−16		)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 27 Rybka versions we tested: Compare them!
OpponentEloDiffResultsScoreLOSPerf
–   ChessBrainVB 3.68 4CPU3163+23
−23		(+160)5.5 − 10.5
(+3−8=5)		34.4%
5.5 / 16
0.0%
+39
–   Topple 0.7.5 64-bit 4CPU3100+22
−22		(+97)5.5 − 14.5
(+1−10=9)		27.5%
5.5 / 20
0.0%
−56
–   Defenchess 1.1f 64-bit 4CPU3099+16
−16		(+96)7.5 − 12.5
(+3−8=9)		37.5%
7.5 / 20
0.0%
+8
–   Pirarucu 2.9.5 64-bit 4CPU3059+27
−27		(+56)4.5 − 7.5
(+3−6=3)		37.5%
4.5 / 12
0.0%
−43
–   Zahak 7.1 64-bit 4CPU3034+25
−25		(+31)14 − 12
(+5−3=18)		53.8%
14.0 / 26
1.8%
+53
–   Rybka 2.1 64-bit 4CPU3021+24
−24		(+18)16 − 14
(+6−4=20)
53.3%
16.0 / 30
11.2%
+37
–   Nu-chess 1.0 64-bit 4CPU3018+25
−25		(+15)18 − 14
(+8−4=20)
56.3%
18.0 / 32
16.2%
+55
–   Asymptote 0.8 64-bit 4CPU3006+26
−26		(+3)10.5 − 9.5
(+4−3=13)		52.5%
10.5 / 20
43.0%
+18
–   Stockfish 1.5.1 64-bit 4CPU2995+22
−22		(−8)30.5 − 33.5
(+14−17=33)
47.7%
30.5 / 64
73.2%
−23
–   EXchess 7.88b 64-bit 4CPU2979+26
−26		(−24)5 − 5
(+2−2=6)		50.0%
5.0 / 10
94.6%
−24
–   Zap!Chess Zanzibar 64-bit 4CPU2973+20
−20		(−30)31 − 29
(+17−15=28)
51.7%
31.0 / 60
99.2%
−16
–   Stockfish 1.4 64-bit 4CPU2971+15
−15		(−32)66 − 57
(+37−28=58)
53.7%
66.0 / 123
99.9%
−4
–   Thinker 5.4c Inert 64-bit 4CPU2943+13
−13		(−60)15.5 − 16.5
(+5−6=21)
48.4%
15.5 / 32
100.0%
−71
–   Toga II 1.4.1SE 4CPU2922+11
−11		(−81)17.5 − 14.5
(+10−7=15)
54.7%
17.5 / 32
100.0%
−46
–   Bright 0.4a 4CPU2914+13
−13		(−89)17 − 15
(+12−10=10)
53.1%
17.0 / 32
100.0%
−61
–   Glaurung 2.2 64-bit 4CPU2912+14
−14		(−91)19 − 13
(+13−7=12)
59.4%
19.0 / 32
100.0%
−21
–   Hiarcs 11.1 4CPU2893+15
−15		(−110)25.5 − 9.5
(+19−3=13)
72.9%
25.5 / 35
100.0%
+54
–   Naum 2.1 64-bit 4CPU2881+19
−19		(−122)23 − 9
(+15−1=16)
71.9%
23.0 / 32
100.0%
+28
–   Igel 1.9.0 64-bit 4CPU2862+28
−28		(−141)11 − 5
(+9−3=4)		68.8%
11.0 / 16
100.0%
+8
–   Loop 13.6 (Loop 2007) 64-bit 4CPU2850+17
−17		(−153)25.5 − 8.5
(+18−1=15)
75.0%
25.5 / 34
100.0%
+19
–   Deep Shredder 10 64-bit 4CPU2845+15
−15		(−158)25 − 6
(+21−2=8)
80.6%
25.0 / 31
100.0%
+74
–   Deep Fritz 10 4CPU2843+18
−18		(−160)24.5 − 5.5
(+19−0=11)
81.7%
24.5 / 30
100.0%
+69
–   Deep Junior 10 4CPU2814+13
−13		(−189)26 − 5
(+23−2=6)
83.9%
26.0 / 31
100.0%
+85
–   Glaurung 1.2.1 64-bit 4CPU2772+16
−16		(−231)26 − 6
(+21−1=10)
81.3%
26.0 / 32
100.0%
0
–   Crafty 23.0 64-bit 4CPU2766+16
−16		(−237)25.5 − 6.5
(+20−1=11)
79.7%
25.5 / 32
100.0%
−19
–   Toga II 1.2.1a 32-bit2766+10
−10		(−237)23 − 7
(+17−1=12)
76.7%
23.0 / 30
100.0%
−52
–   Spike 1.2 Turin2750+6
−6		(−253)26 − 4
(+22−0=8)
86.7%
26.0 / 30
100.0%
+26
–   Scorpio 2.0 32-bit 4CPU2734+21
−21		(−269)25.5 − 5.5
(+21−1=9)
82.3%
25.5 / 31
100.0%
−25
–   Scorpio 2.1 64-bit 4CPU2722+23
−23		(−281)25 − 7
(+20−2=10)
78.1%
25.0 / 32
100.0%
−72
957 games: 388 wins, 156 losses, 413 draws (43.2%), score: 62.1%

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Created in 2005-2013 by CCRL team
Last games added on November 16, 2024