CCRL 40/4
Downloads and Statistics
January 13, 2018
Testing summary:
Total: 1'626'652 games
played by 1'934 programs
21844 CPU days (X2 4600+)

White wins: 635'703 (39.1%)
Black wins: 517'026 (31.8%)
Draws: 473'923 (29.1%)
White score: 53.6%

Engine Details

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Rybka 2.3.1 32-bit (2894+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 25 Rybka versions we tested: Compare them!
OpponentEloDiffResultsScoreLOSPerf
–   Hiarcs 11.12804+11
−11
(−90)40.5 − 23.5
(+31−14=19)
63.3%
40.5 / 64
100.0%
+4
0 1 = 0 = 0 0 1 1 = = 1 0 1 0 1 = 1 1 1 = 1 = = 1 0 1 1 = 0 = 1 = 1 1 = 1 1 1 = 1 1 = 1 1 1 1 1 = 0 0 1 = 0 = 1 0 1 = 1 = 0 0 1
–   Hiarcs 112791+15
−15
(−103)16.5 − 15.5
(+12−11=9)
51.6%
16.5 / 32
100.0%
−91
0 1 1 1 0 = 0 1 = 1 = 0 1 0 = = 1 1 0 0 0 0 0 1 0 1 = = 1 1 = =
–   Loop 13.6 (Loop 2007) 32-bit2776+10
−10
(−118)5 − 4
(+3−2=4)
55.6%
5.0 / 9
100.0%
−77
1 = = 0 = 1 0 1 =
–   Toga II 1.3.12772+10
−9
(−122)42 − 22
(+31−11=22)
65.6%
42.0 / 64
100.0%
−17
1 1 1 1 1 = 1 1 = 0 = 1 = 1 1 1 = = 1 0 1 = 1 = 0 1 1 1 1 1 = 0 1 = 1 = 0 1 = = 1 0 1 1 = = 1 = = 0 1 0 0 = 0 = 1 = 1 1 = 0 1 =
–   Loop 13.5 32-bit2763+18
−18
(−131)97.5 − 27.5
(+81−11=33)
78.0%
97.5 / 125
100.0%
+71
1 1 1 1 0 = 1 0 1 1 = = = 1 = = = = 1 1 0 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 0 = 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 0 1 = 1 1 1 1 1 1 0 = 1 1 1 1 0 1 1 0 1 1 1 1 1 = 1 1 1 1
–   Toga II 1.2.1a 32-bit2762+9
−9
(−132)50 − 14
(+39−3=22)
78.1%
50.0 / 64
100.0%
+60
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 = 0 1 = 1 1 = = 1 1 = 1 1 = 1 1 1 0 = = 1 = 1
–   Hiarcs X502756+16
−16
(−138)45 − 19
(+37−11=16)
70.3%
45.0 / 64
100.0%
+10
= = 1 1 0 1 1 = 1 1 = 1 0 1 0 1 1 0 1 0 1 0 = 1 1 = = 1 1 = 1 1 1 = 1 = 1 = 1 1 1 = 1 0 1 1 1 = 1 1 1 1 1 = 0 1 0 = 1 1 0 = 1 0
–   Fritz 92751+11
−11
(−143)44 − 19
(+35−10=18)
69.8%
44.0 / 63
100.0%
−3
= 0 0 1 0 = 1 0 = 1 1 1 1 = 1 1 0 1 = = = 1 1 1 1 1 1 = 0 = 1 = = 1 1 1 = = = 1 0 1 1 1 1 1 1 1 0 1 1 = 1 1 0 1 1 0 1 = 1 = =
–   Hiarcs X54 Hypermodern 32-bit2750+21
−21
(−144)45 − 18
(+36−9=18)
71.4%
45.0 / 63
100.0%
+6
1 1 1 0 1 0 = = = = = 0 = = 1 1 = 1 1 1 1 = 0 1 1 1 1 1 1 1 = = 1 1 1 0 1 0 1 = 1 1 1 0 1 = 1 1 0 1 1 = 0 = 1 1 = = 1 1 = 1 1
–   Naum 2.1 32-bit2739+14
−14
(−155)95 − 30
(+76−11=38)
76.0%
95.0 / 125
100.0%
+27
= 1 = 1 1 1 1 1 1 = 1 = = 1 = 1 = 1 1 1 = = 1 1 1 1 1 = 1 1 0 1 1 1 0 = 1 0 1 1 1 1 = = 1 0 1 = 1 0 1 = 1 1 = 1 = = = 1 = 1 1 1 1 1 1 = = = = 1 1 0 1 0 1 0 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 1 1 1 1 0 = 1 1 1 =
–   Hiarcs 102736+20
−20
(−158)42.5 − 21.5
(+35−14=15)
66.4%
42.5 / 64
100.0%
−40
1 = = 0 = 0 1 1 = 1 1 1 = 0 1 1 0 0 = = 1 1 1 1 0 1 1 1 1 0 1 1 = 1 1 = 0 = 1 1 1 1 0 0 1 1 1 = = 1 0 1 1 = 1 1 0 1 = 1 = 0 0 1
–   Spike 1.2 Turin2731+6
−6
(−163)44.5 − 19.5
(+35−10=19)
69.5%
44.5 / 64
100.0%
−28
= 1 0 0 1 0 1 1 1 = 1 1 = 1 1 0 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 0 = 0 1 = 1 0
–   Chess Tiger 2007.12713+8
−8
(−181)15 − 7
(+11−3=8)
68.2%
15.0 / 22
100.0%
−61
0 = = 1 = = 1 1 = 1 1 1 1 = 1 0 1 = = 1 0 1
–   Naum 2.0 32-bit2700+8
−8
(−194)49.5 − 14.5
(+42−7=15)
77.3%
49.5 / 64
100.0%
+8
1 1 1 = 1 1 1 1 = 1 1 = 0 1 0 1 = 1 1 0 0 = 1 1 1 1 1 1 = = 0 = 1 1 1 1 1 1 = = 1 1 1 1 0 1 1 1 1 = = = 1 0 1 = 1 1 1 1 1 = 1 1
–   Glaurung 1.2.1 32-bit2657+10
−10
(−237)79.5 − 16.5
(+69−6=21)
82.8%
79.5 / 96
100.0%
+15
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 0 = 1 1 1 1 1 1 1 1 0 1 0 1 1 1 0 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
–   CM10th Paralyse2655+15
−15
(−239)25.5 − 6.5
(+23−4=5)
79.7%
25.5 / 32
100.0%
0
1 0 1 0 1 = 1 1 1 = 1 1 1 0 1 = 1 = 1 1 1 1 = 1 1 1 1 1 1 1 0 1
–   Scorpio 1.812648+14
−14
(−246)53 − 11
(+47−5=12)
82.8%
53.0 / 64
100.0%
+13
1 1 1 1 1 0 1 1 1 1 1 1 1 0 1 1 0 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 0 1 = 1 = = 1 1 1
–   Scorpio 1.92642+13
−13
(−252)51 − 13
(+42−4=18)
79.7%
51.0 / 64
100.0%
−39
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 = = = 1 1 = 0 1 = 0 = = 1 1 1 1 1 1 = 1 1 1 1 = 1 1 = 1 = 1 1 1
–   Scorpio 1.912641+12
−13
(−253)24.5 − 6.5
(+21−3=7)
79.0%
24.5 / 31
100.0%
−36
0 1 1 1 1 = = 0 1 1 1 1 1 = = 1 1 1 1 1 1 = 1 0 1 1 1 1 1 = =
–   CM10th Xperience2639+14
−14
(−255)27 − 5
(+23−1=8)
84.4%
27.0 / 32
100.0%
+3
1 = 1 1 1 1 1 1 1 1 1 0 1 = 1 1 1 1 = 1 = 1 1 1 1 1 = 1 = = 1 =
–   Scorpio 1.822638+20
−20
(−256)25.5 − 6.5
(+21−2=9)
79.7%
25.5 / 32
100.0%
−42
0 0 1 1 = = 1 1 1 1 = = 1 1 1 1 = 1 1 1 1 1 1 = 1 1 1 = = = 1 1
–   Scorpio 1.842633+20
−20
(−261)53.5 − 10.5
(+46−3=15)
83.6%
53.5 / 64
100.0%
−3
1 1 = 1 1 1 1 = 1 1 1 1 = 1 1 0 = 1 1 1 1 0 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
–   Scorpio 1.82624+14
−15
(−270)55 − 9
(+47−1=16)
85.9%
55.0 / 64
100.0%
+2
= = = 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 1 1 1 1 1 1 = 1 1 1 1 1 1 1 = = 1 = 1 1
–   Slow Chess Blitz WV2.12616+6
−6
(−278)23 − 9
(+17−3=12)
71.9%
23.0 / 32
100.0%
−133
= = = 1 = 0 0 1 = 1 1 1 = 1 0 = 1 1 = = 1 1 1 = 1 1 = = 1 1 1 1
–   ProDeo 1.22609+10
−11
(−285)24.5 − 7.5
(+21−4=7)
76.6%
24.5 / 32
100.0%
−86
1 0 1 = = 1 = 1 0 0 1 = 1 1 1 1 1 0 1 1 1 1 1 = 1 1 1 = 1 1 1 =
–   WildCat 72606+10
−10
(−288)28 − 4
(+27−3=2)
87.5%
28.0 / 32
100.0%
+67
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
–   Pharaon 3.5.12604+7
−7
(−290)28.5 − 3.5
(+25−0=7)
89.1%
28.5 / 32
100.0%
+23
= = 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

Rating changes by day

Rating changes with played games

Participation in the pure lists

Pure listRankRatingNumber of games
Rybka 2.3.1 32-bit
played with current
participants of this list
Represented by
1-2-CPU    86Rybka 4.1 64-bit
32-bit    255Rybka 2.3.2a 32-bit
32-bit 1-2-CPU    255Rybka 2.3.2a 32-bit
32-bit single-CPU    255Rybka 2.3.2a 32-bit
All    86Rybka 4.1 64-bit 4CPU
Single-CPU    86Rybka 4.1 64-bit

Created in 2005-2013 by CCRL team
Last games added on January 13, 2018