CCRL Blitz
Downloads and Statistics
March 6, 2021
Testing summary:
Total: 2'478'353 games
played by 2'951 programs

White wins: 953'046 (38.5%)
Black wins: 763'412 (30.8%)
Draws: 761'895 (30.7%)
White score: 53.8%

Engine Details

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Rybka 4 64-bit (3102+13
−13		)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
–   Houdini 3 64-bit3217+14
−14		(+115)2 − 14
(+0−12=4)		12.5%
2.0 / 16
0.0%
−173
= = 0 0 0 0 0 = 0 0 0 0 0 0 0 =
–   Houdini 2.0c 64-bit3202+15
−15		(+100)3.5 − 12.5
(+0−9=7)		21.9%
3.5 / 16
0.0%
−75
= = 0 = = = 0 0 0 0 0 0 0 = 0 =
–   Houdini 1.5a 64-bit3170+11
−11		(+68)13 − 21
(+6−14=14)
38.2%
13.0 / 34
0.0%
−9
= 0 0 1 = = 1 0 0 = 0 0 = = 0 = 1 0 = = 0 1 1 = 0 = 0 = 0 = 0 = 0 1
–   Critter 1.6a 64-bit3157+6
−6		(+55)7.5 − 8.5
(+4−5=7)		46.9%
7.5 / 16
0.0%
+37
0 1 0 1 = 1 0 1 = = = 0 0 = = =
–   Komodo 5 64-bit3145+13
−13		(+43)8 − 8
(+4−4=8)		50.0%
8.0 / 16
0.0%
+40
0 = = 0 1 1 = = 0 = 0 = = = 1 1
–   Critter 1.4 64-bit3142+15
−15		(+40)8.5 − 7.5
(+5−4=7)		53.1%
8.5 / 16
0.0%
+60
= = 1 0 0 0 1 = 1 = = 0 1 = = 1
–   Stockfish 1.7.1 64-bit 4CPU3141+13
−13		(+39)20.5 − 29.5
(+7−16=27)
41.0%
20.5 / 50
0.0%
−13
= 0 0 0 1 = = = = 0 = 0 = 0 1 0 0 0 = = = = 0 0 1 0 0 = = = 1 = = = 0 1 = 0 = 0 = = = = = = 1 = 1 =
–   Fritz 16 64-bit3140+13
−13		(+38)23 − 37
(+8−22=30)
38.3%
23.0 / 60
0.0%
−32
= = 0 = 0 = 0 = 0 0 0 = = = = = = = = = = 0 1 0 0 = = = = = 1 1 0 1 0 1 0 0 0 = 1 = = 0 0 0 0 = = 1 0 = = 1 = 0 0 = = 0
–   Stockfish 1.8 64-bit 4CPU3138+16
−16		(+36)21 − 29
(+10−18=22)
42.0%
21.0 / 50
0.0%
−12
1 0 0 1 0 1 0 0 = 0 0 = 0 = = = = 0 = 1 = 0 0 = = 1 = 1 0 = 0 0 = 1 0 = 0 = 0 1 0 = 1 = = = = = = 1
–   Houdini 1.03a 64-bit3116+20
−19		(+14)46 − 53
(+21−28=50)
46.5%
46.0 / 99
10.7%
−6
= 1 1 0 = 0 = = = = 0 = = = 0 0 = 1 = = = = 1 = = = = = = = 0 = 0 = 0 = 1 0 1 = 0 = = 0 1 0 1 = = = = 0 0 0 = 0 = 0 1 0 = 0 = 1 1 = = = 0 1 = 0 = = = 1 = = 1 1 = = 0 = 0 = 0 = 1 1 = 0 0 1 1 0 0 1 1
–   Stockfish 2.2.2 64-bit3115+14
−14		(+13)8 − 8
(+4−4=8)		50.0%
8.0 / 16
8.8%
+15
= 0 1 0 = 0 1 = 1 = = = 0 = 1 =
–   Rybka 4.1 64-bit3111+6
−6		(+9)8.5 − 7.5
(+3−2=11)		53.1%
8.5 / 16
11.5%
+28
= = = = 1 = 0 0 1 = = = 1 = = =
–   Naum 4.2 64-bit 4CPU3099+8
−8		(−3)26.5 − 21.5
(+18−13=17)
55.2%
26.5 / 48
66.5%
+29
= 1 0 1 = 1 = 0 0 0 = = 1 1 0 1 = = = 0 1 1 = 0 1 1 = = 0 = 0 0 1 1 1 = 0 1 1 1 1 0 = 1 = 0 = =
–   Rybka 3 64-bit3078+9
−9		(−24)48.5 − 33.5
(+25−10=47)
59.1%
48.5 / 82
99.9%
+29
= = 0 = 1 = 1 = 1 0 = 1 1 = = = 1 = = 0 = = = = 1 = 0 = = = 1 1 1 = = 0 1 = 1 = = = = 1 1 = 0 = = = = = 0 = 0 = 1 1 1 = 1 0 = = = = = = 1 = 1 = 0 1 = 1 = 1 = 1 = 1
–   Arasan 20.5 64-bit3060+13
−13		(−42)25.5 − 14.5
(+19−8=13)
63.8%
25.5 / 40
100.0%
+49
0 1 0 1 0 1 1 0 1 1 1 = = 1 1 = 1 1 = 1 0 1 0 1 = = = 1 1 = 0 = 0 1 1 = = = = 1
–   Stockfish 1.9.1 64-bit3055+20
−20		(−47)18 − 12
(+13−7=10)
60.0%
18.0 / 30
100.0%
+15
1 1 0 = 1 0 1 = 1 0 = 1 1 = 0 = 1 1 1 = 0 1 = = 0 = = 0 1 1
–   Stockfish 1.7.1 64-bit3045+14
−14		(−57)51 − 31
(+31−11=40)
62.2%
51.0 / 82
100.0%
+17
= 1 = = 1 = 0 1 0 = = 1 = = 0 = = = = 1 = 1 = 1 = = = = 0 = = 1 = = 0 1 1 = 1 1 1 = 1 0 0 1 1 = 1 1 0 = = = = 0 1 1 1 1 1 0 = 1 1 1 0 = = 1 = = = 1 = = 1 = 1 1 = =
–   Deep Shredder 12 64-bit 4CPU3042+7
−7		(−60)25 − 25
(+12−12=26)
50.0%
25.0 / 50
100.0%
−60
1 = 0 = = 1 0 = = 0 1 1 = = = = = = 1 = 0 = 0 1 = = 0 1 1 = = 1 = 0 = = 1 0 0 0 1 = = = = 0 0 1 = =
–   Spark 0.4 64-bit 4CPU2989+14
−14		(−113)33.5 − 16.5
(+21−4=25)
67.0%
33.5 / 50
100.0%
−12
1 = = 1 1 = = 1 = = = = 0 = 0 = = = 1 1 1 1 0 1 1 = 1 = = 1 = 1 1 = 1 = = = 1 1 = 1 = 1 = 1 = = 1 0
–   Naum 4.2 64-bit2988+8
−8		(−114)38 − 18
(+25−5=26)
67.9%
38.0 / 56
100.0%
−6
= = = 0 1 1 = = = = 1 = 1 1 = = = 0 1 1 1 = 1 1 0 = = 1 = 1 1 0 = 1 = 1 = = = 1 1 1 = 1 1 = 1 0 1 1 1 1 = = = =
–   Fritz 132986+10
−10		(−116)10 − 6
(+6−2=8)		62.5%
10.0 / 16
100.0%
−40
0 = = 1 1 = 0 1 = 1 = 1 = = = 1
–   Critter 0.70 64-bit2974+18
−18		(−128)37.5 − 11.5
(+31−5=13)
76.5%
37.5 / 49
100.0%
+62
1 = = 1 = 0 1 = 1 1 1 = 1 = 1 = = 1 = 1 1 1 = 1 1 1 1 0 1 1 1 1 0 = 0 1 1 1 = 1 1 0 1 1 1 1 = 1 1
–   Zappa Mexico II 64-bit 4CPU2973+7
−7		(−129)34.5 − 15.5
(+25−6=19)
69.0%
34.5 / 50
100.0%
−4
1 = = 0 1 1 0 1 = = 0 1 1 = = 1 = 1 = 1 1 = = 1 0 1 1 1 0 1 1 1 = 1 = 1 = 1 1 = = 1 0 = = 1 = 1 1 =
–   Komodo 1.2 64-bit2967+12
−12		(−135)39 − 15
(+28−4=22)
72.2%
39.0 / 54
100.0%
+6
1 = 1 1 1 1 = 1 = 1 = = 1 1 = 1 1 1 1 = 1 1 1 = 1 1 0 1 = 1 = = = 1 1 = = 1 0 1 = = 1 = = = 0 = 1 0 1 = 1 =
–   Deep Shredder 12 64-bit2955+8
−8		(−147)34.5 − 15.5
(+23−4=23)
69.0%
34.5 / 50
100.0%
−32
1 1 = = 1 = = 1 = = = 0 = 1 1 = 0 = 1 1 1 1 1 = 1 = 1 1 1 = = 1 = 1 1 = 1 = 0 1 = = = 1 = 1 0 = 1 =
–   Thinker 5.4c Inert 64-bit 4CPU2954+8
−8		(−148)39.5 − 10.5
(+31−2=17)
79.0%
39.5 / 50
100.0%
+51
1 1 1 1 1 1 = 1 = 1 1 1 0 1 1 1 = 1 1 = = = 1 = = 1 1 = = 1 1 1 = 0 1 1 1 1 = = 1 1 = = 1 1 1 = = 1
–   Protector 1.3.4 64-bit 4CPU2952+12
−13		(−150)36.5 − 13.5
(+28−5=17)
73.0%
36.5 / 50
100.0%
+6
= 1 1 1 = = 1 = 1 1 = 1 1 0 1 = 1 = 1 = 1 1 = = 1 0 0 1 1 = 0 = 1 0 1 1 1 1 1 = 1 1 = = 1 1 1 = = 1
–   Hiarcs 12 4CPU2942+9
−9		(−160)32 − 18
(+24−10=16)
64.0%
32.0 / 50
100.0%
−64
1 1 1 0 0 1 0 = 1 1 1 1 0 1 1 1 = 1 1 = = 1 0 0 = 1 = 1 = 1 = = 1 = = 0 0 1 0 = = 1 0 = 1 1 = 1 = 1
–   Deep Sjeng WC2008 64-bit 4CPU2941+8
−8		(−161)38.5 − 11.5
(+31−4=15)
77.0%
38.5 / 50
100.0%
+28
1 = 1 1 = 1 = = 1 = 1 = = = 1 0 1 1 1 1 = 1 1 1 1 0 1 = 1 1 1 = = 1 1 1 1 1 0 1 = 1 1 1 = = 1 0 1 1
–   Hiarcs 12.1 4CPU2940+10
−10		(−162)37 − 13
(+30−6=14)
74.0%
37.0 / 50
100.0%
+7
1 1 = = 1 1 1 1 = 1 1 = 1 = 1 1 0 0 1 1 1 1 = 0 1 1 1 = 1 1 = = = 1 = = = 0 1 1 1 1 1 1 1 1 = 0 0 1
–   Komodo 1.0 64-bit2933+12
−11		(−169)57.5 − 19.5
(+46−8=23)
74.7%
57.5 / 77
100.0%
+4
= 1 = 1 1 1 1 1 1 1 1 = 1 1 1 1 0 1 1 = 1 1 1 1 1 = 1 1 0 = 1 = 1 1 0 1 1 = = = = 1 = = 1 0 1 1 1 = = 1 = 0 = = 1 1 1 = 1 1 1 1 1 0 1 = 1 0 1 1 = 1 = = 0
–   Hiarcs 13.22933+15
−15		(−169)21.5 − 7.5
(+16−2=11)		74.1%
21.5 / 29
100.0%
−9
1 1 1 0 = = 0 = 1 1 1 1 1 1 1 = 1 = 1 1 1 = = 1 = 1 = = =
–   Spark 1.0 64-bit2926+7
−7		(−176)25 − 6
(+20−1=10)
80.6%
25.0 / 31
100.0%
+39
= 1 = = 0 1 = 1 = 1 = 1 1 1 1 1 1 1 1 1 = 1 = 1 1 1 1 = 1 1 =
–   Deep Junior 11.2 64-bit 4CPU2925+17
−17		(−177)36.5 − 13.5
(+31−8=11)
73.0%
36.5 / 50
100.0%
−6
= 1 1 1 1 = = 1 1 = = 1 1 0 1 1 = 0 1 = 1 = 1 1 1 0 1 0 1 1 1 1 1 1 1 = = 1 1 0 1 1 1 1 0 = 0 1 0 1
–   Spark 0.5 64-bit2921+18
−18		(−181)39 − 11
(+32−4=14)
78.0%
39.0 / 50
100.0%
+18
1 1 1 = 0 1 = 1 = 1 1 = 1 1 = 1 = 1 1 = 1 1 1 1 = = 1 1 1 = 1 = 0 1 1 0 = 1 1 = 1 = 1 1 1 1 1 1 1 0
–   Fritz 122909+13
−13		(−193)62.5 − 15.5
(+51−4=23)
80.1%
62.5 / 78
100.0%
+23
= 1 = 1 1 1 1 0 1 1 = 1 = 1 1 1 = 1 = 1 1 1 1 = = 1 = 1 1 1 0 1 1 = 1 1 1 1 1 1 1 0 1 = 1 = 1 1 1 = = = = 1 = 1 1 1 = 1 = 1 1 1 = = 0 1 1 = 1 1 1 1 1 1 1 =
–   Toga II 1.4 beta5c 4CPU2905+9
−9		(−197)42 − 8
(+35−1=14)
84.0%
42.0 / 50
100.0%
+53
1 1 1 = 1 1 1 1 1 = 1 = = 1 1 1 = = = 1 1 = 1 = 1 = 1 1 1 = 1 1 1 1 1 1 1 0 1 1 = 1 1 = 1 1 1 1 1 =
–   Bright 0.5c 4CPU2905+13
−14		(−197)36 − 14
(+29−7=14)
72.0%
36.0 / 50
100.0%
−41
= 1 1 = 1 1 1 1 0 1 1 1 1 = 1 = 1 0 1 = = 0 1 1 = = = = 1 = 1 1 = 1 1 1 = 1 0 1 1 1 0 1 1 0 = 0 1 1
–   Thinker 5.4c Inert 64-bit2883+9
−9		(−219)63.5 − 13.5
(+54−4=19)
82.5%
63.5 / 77
100.0%
+25
= 1 1 0 1 1 1 1 1 1 1 1 1 1 1 = 1 1 = 1 1 1 1 1 1 1 1 1 1 1 1 = 1 = = 1 1 = 1 0 = 1 1 1 1 1 1 = 1 = 1 = 1 0 1 1 1 1 = 1 0 = = 1 = 1 = = = 1 1 1 = 1 1 1 1
–   Spark 0.4 64-bit2882+11
−11		(−220)61 − 16
(+48−3=26)
79.2%
61.0 / 77
100.0%
−19
1 1 = 1 1 1 1 = = = = = 1 = = 1 = 1 1 = 1 1 = 1 1 1 = 1 1 = = 1 = = 1 0 1 = = 1 1 = 1 1 1 0 1 1 1 1 = 1 = = 1 1 1 = 1 0 1 1 1 1 1 = 1 1 1 = 1 1 1 1 1 = 1
–   Critter 0.60 64-bit2866+17
−17		(−236)43 − 8
(+38−3=10)
84.3%
43.0 / 51
100.0%
+34
1 1 1 1 = 1 = = 0 0 1 1 1 1 = 1 1 1 1 1 = 1 1 1 1 1 1 1 1 1 1 = 1 1 1 1 1 = = 1 1 1 = 1 1 1 1 = 1 0 1
–   Protector 1.3.4 64-bit2853+18
−18		(−249)43.5 − 7.5
(+37−1=13)
85.3%
43.5 / 51
100.0%
+18
1 1 = 1 = 1 1 1 = 1 1 1 1 1 0 1 1 1 = 1 1 = = 1 = 1 = = 1 1 1 1 1 1 = 1 1 = = 1 1 1 1 1 1 1 1 1 1 = 1
–   Zappa Mexico II 64-bit2846+7
−6		(−256)60.5 − 15.5
(+48−3=25)
79.6%
60.5 / 76
100.0%
−48
= 1 = = 1 1 = 1 1 = = 1 1 1 = 1 = = 1 1 = 1 = 1 = 1 1 1 = = 1 1 = 1 = 1 = 1 1 = 1 0 1 1 1 = = 1 1 1 1 1 1 1 0 1 = 1 = 1 1 1 = 1 1 1 = 1 1 1 1 0 1 1 = 1
–   Onno 1.2.70 64-bit2842+8
−8		(−260)43.5 − 6.5
(+38−1=11)
87.0%
43.5 / 50
100.0%
+31
= 1 = 1 1 1 = 1 = = 1 1 1 1 0 = 1 1 = 1 1 1 1 1 1 1 1 1 1 1 = 1 1 1 1 1 = 1 1 = 1 1 1 = 1 1 1 1 1 1
–   Deep Junior 11.1a 64-bit2841+13
−14		(−261)43.5 − 7.5
(+38−2=11)
85.3%
43.5 / 51
100.0%
+13
1 1 = 1 1 1 1 1 = 1 1 1 = 1 1 1 1 0 = 1 1 1 1 1 1 1 1 1 = 1 = 1 1 1 1 1 1 = 1 1 1 = 1 = 1 0 1 = 1 1 =
–   Deep Sjeng 3.0 64-bit2838+10
−11		(−264)41 − 9
(+33−1=16)
82.0%
41.0 / 50
100.0%
−39
1 = 1 1 1 1 1 1 1 1 = 1 1 = 1 1 1 1 1 1 = = 1 = = 1 1 0 = = 1 1 1 1 1 1 = = 1 = 1 1 1 = = 1 = 1 1 =
–   Hiarcs 122835+10
−11		(−267)39 − 11
(+31−3=16)
78.0%
39.0 / 50
100.0%
−73
1 1 = 1 1 1 1 1 1 1 1 1 1 1 1 = = 1 1 = = = = 1 1 = 1 = = 1 0 1 = 1 = 1 1 1 0 = = 1 1 = 1 1 1 1 0 =
2260 games: 1118 wins, 312 losses, 830 draws (36.7%), score: 67.8%

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Created in 2005-2013 by CCRL team
Last games added on March 6, 2021