CCRL Blitz
Downloads and Statistics
September 26, 2020
Testing summary:
Total: 2'375'566 games
played by 2'806 programs

White wins: 914'963 (38.5%)
Black wins: 735'833 (31.0%)
Draws: 724'770 (30.5%)
White score: 53.8%

Engine Details

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Rybka 2.3.1 32-bit (2893+17
−17
)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
–   Hiarcs 11.12803+12
−11
(−90)40.5 − 23.5
(+31−14=19)
63.3%
40.5 / 64
100.0%
+4
–   Hiarcs 112790+14
−15
(−103)16.5 − 15.5
(+12−11=9)
51.6%
16.5 / 32
100.0%
−91
–   Loop 13.6 (Loop 2007) 32-bit2775+10
−10
(−118)5 − 4
(+3−2=4)
55.6%
5.0 / 9
100.0%
−77
–   Toga II 1.3.12772+10
−9
(−121)42 − 22
(+31−11=22)
65.6%
42.0 / 64
100.0%
−16
–   Loop 13.5 32-bit2762+18
−18
(−131)97.5 − 27.5
(+81−11=33)
78.0%
97.5 / 125
100.0%
+71
–   Toga II 1.2.1a 32-bit2762+9
−9
(−131)50 − 14
(+39−3=22)
78.1%
50.0 / 64
100.0%
+61
–   Hiarcs X502755+16
−16
(−138)45 − 19
(+37−11=16)
70.3%
45.0 / 64
100.0%
+10
–   Fritz 92750+11
−11
(−143)44 − 19
(+35−10=18)
69.8%
44.0 / 63
100.0%
−3
–   Hiarcs X54 Hypermodern 32-bit2749+21
−21
(−144)45 − 18
(+36−9=18)
71.4%
45.0 / 63
100.0%
+6
–   Naum 2.1 32-bit2738+14
−14
(−155)95 − 30
(+76−11=38)
76.0%
95.0 / 125
100.0%
+27
–   Hiarcs 102735+20
−19
(−158)42.5 − 21.5
(+35−14=15)
66.4%
42.5 / 64
100.0%
−40
–   Spike 1.2 Turin2731+6
−6
(−162)44.5 − 19.5
(+35−10=19)
69.5%
44.5 / 64
100.0%
−27
–   Chess Tiger 2007.12713+7
−7
(−180)15 − 7
(+11−3=8)
68.2%
15.0 / 22
100.0%
−60
–   Naum 2.0 32-bit2699+8
−8
(−194)49.5 − 14.5
(+42−7=15)
77.3%
49.5 / 64
100.0%
+8
–   Glaurung 1.2.1 32-bit2657+10
−10
(−236)79.5 − 16.5
(+69−6=21)
82.8%
79.5 / 96
100.0%
+16
–   CM10th Paralyse2654+15
−15
(−239)25.5 − 6.5
(+23−4=5)
79.7%
25.5 / 32
100.0%
0
–   Scorpio 1.812648+14
−14
(−245)53 − 11
(+47−5=12)
82.8%
53.0 / 64
100.0%
+14
–   Scorpio 1.92641+13
−13
(−252)51 − 13
(+42−4=18)
79.7%
51.0 / 64
100.0%
−39
–   Scorpio 1.912640+12
−12
(−253)24.5 − 6.5
(+21−3=7)
79.0%
24.5 / 31
100.0%
−36
–   CM10th Xperience2638+14
−14
(−255)27 − 5
(+23−1=8)
84.4%
27.0 / 32
100.0%
+3
–   Scorpio 1.822637+20
−20
(−256)25.5 − 6.5
(+21−2=9)
79.7%
25.5 / 32
100.0%
−42
–   Scorpio 1.842632+20
−20
(−261)53.5 − 10.5
(+46−3=15)
83.6%
53.5 / 64
100.0%
−3
–   Scorpio 1.82623+14
−15
(−270)55 − 9
(+47−1=16)
85.9%
55.0 / 64
100.0%
+2
–   Slow Chess Blitz WV2.12614+6
−6
(−279)23 − 9
(+17−3=12)
71.9%
23.0 / 32
100.0%
−134
–   ProDeo 1.22608+10
−11
(−285)24.5 − 7.5
(+21−4=7)
76.6%
24.5 / 32
100.0%
−86
–   WildCat 72605+10
−10
(−288)28 − 4
(+27−3=2)
87.5%
28.0 / 32
100.0%
+67
–   Pharaon 3.5.12602+7
−7
(−291)28.5 − 3.5
(+25−0=7)
89.1%
28.5 / 32
100.0%
+22

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Created in 2005-2013 by CCRL team
Last games added on September 26, 2020