CCRL 40/40
Downloads and Statistics
November 11, 2017
Testing summary:
Total: 754'213 games
played by 1'962 programs
103027 CPU days (X2 4600+)

White wins: 259'159 (34.4%)
Black wins: 192'263 (25.5%)
Draws: 302'791 (40.1%)
White score: 54.4%

Engine Details

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Rybka 4 32-bit (3015+15
−15
)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
–   Critter 1.01 32-bit3024+19
−19
(+9)20 − 12
(+11−3=18)
62.5%
20.0 / 32
22.4%
+79
= 1 = = 1 = 0 1 1 = = 1 = = 1 1 0 1 = 1 = = = = 1 = 0 = = 1 = =
–   Stockfish 2.0.1 32-bit3015+18
−18
(0)17 − 13
(+10−6=14)
56.7%
17.0 / 30
48.0%
+39
1 1 = = = = = = = 0 1 0 = 1 1 0 1 1 = 1 = 0 0 = 1 = = 0 = 1
–   Stockfish 1.9.1 32-bit2999+18
−17
(−16)20 − 22
(+7−9=26)
47.6%
20.0 / 42
91.0%
−28
1 1 = = = = 1 = = 1 = = = = = = = = 0 = 0 = = 0 = = = 0 = 0 1 = 0 0 1 = 1 = = 0 0 =
–   Critter 0.90 32-bit2988+17
−16
(−27)23.5 − 18.5
(+12−7=23)
56.0%
23.5 / 42
99.3%
+4
= 0 1 0 = 1 1 1 = = = = 0 = 1 1 0 0 1 = 0 1 = 1 = 1 = = 0 = = = = 1 = = 1 = = = = =
–   Stockfish 1.8 32-bit2986+18
−18
(−29)21.5 − 13.5
(+10−2=23)
61.4%
21.5 / 35
99.3%
+32
1 0 = = = 1 = = 1 = = = 1 = 1 = 1 1 = = = 1 = 0 = = = = 1 = = = 1 = =
–   Stockfish 1.7.1 32-bit2973+17
−17
(−42)29.5 − 24.5
(+15−10=29)
54.6%
29.5 / 54
100.0%
−14
= = 1 = 0 = 1 0 = 1 1 = = = = = = = 0 = = 0 = = 1 0 = 1 = = 1 = 1 = 1 = = 1 0 1 = 1 0 = = 0 1 = 1 1 0 0 = =
–   Naum 4.2 32-bit2960+10
−10
(−55)39.5 − 31.5
(+15−7=49)
55.6%
39.5 / 71
100.0%
−25
= = 1 = 1 = = = = = = = = = = 1 1 1 1 = 0 1 1 = = 1 = = = = 1 1 = = 0 = = = = = = = = 1 = 0 1 = = = = = = = = = = = = = 1 0 = = 1 = 0 = 0 = 0
–   Deep Sjeng c't 20102942+10
−10
(−73)24.5 − 13.5
(+14−3=21)
64.5%
24.5 / 38
100.0%
+11
= = = 1 = = 0 1 = 1 1 0 = 1 = 1 = 1 = = 1 = = 0 1 = = 1 1 1 1 = = = = 1 = =
–   Shredder 12 32-bit2930+7
−7
(−85)65 − 37
(+37−9=56)
63.7%
65.0 / 102
100.0%
−5
= 0 0 1 1 = = = 1 = = = 0 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 = = = = = 0 1 = 1 = = 1 = = 1 1 = 0 = 1 1 = 0 0 = 1 1 1 =
–   Critter 0.80 32-bit2924+16
−16
(−91)25 − 15
(+14−4=22)
62.5%
25.0 / 40
100.0%
−18
= = = 0 = 1 1 1 = 0 1 = = = = = 1 1 = = 1 1 = 0 1 1 1 = 0 = = = = = = = 1 1 1 =
–   Spike 1.4 Leiden2921+8
−8
(−94)22 − 8
(+16−2=12)
73.3%
22.0 / 30
100.0%
+57
= 1 1 1 = 1 = 1 = = = 1 1 1 0 = = 1 = 1 0 1 1 1 1 = = 1 1 =
–   Komodo 1.3 32-bit2918+16
−16
(−97)23 − 11
(+14−2=18)
67.6%
23.0 / 34
100.0%
+6
1 = 1 1 0 = 1 = = 1 = 1 = 1 = 1 = = = = 1 0 = = = 1 1 1 = = 1 1 = =
–   Hiarcs 13.22900+11
−11
(−115)21 − 9
(+16−4=10)
70.0%
21.0 / 30
100.0%
+19
= 1 0 1 = 1 0 1 1 = = 1 0 1 = 1 1 1 = 1 1 0 1 1 = = = = 1 1
–   Komodo 1.2 32-bit2897+14
−14
(−118)49.5 − 18.5
(+34−3=31)
72.8%
49.5 / 68
100.0%
+23
1 1 = = 1 1 1 = 1 1 = 1 1 = 1 = 1 = 1 1 1 = = = 1 0 = = 1 1 1 1 1 1 1 = = = = = 0 = = = 1 = = 1 = = 1 = 1 0 1 = = 1 1 = 1 1 = 1 = = 1 1
–   Fritz 122887+11
−11
(−128)33.5 − 14.5
(+24−5=19)
69.8%
33.5 / 48
100.0%
+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 0 0 1 0 =
–   Gull 1.0a 32-bit2887+13
−13
(−128)24.5 − 9.5
(+18−3=13)
72.1%
24.5 / 34
100.0%
+15
= 1 = 1 1 = = 1 1 1 = = = 0 1 1 1 1 0 1 1 0 = 1 = = 1 1 = 1 1 1 = =
–   Critter 0.70 32-bit2878+20
−19
(−137)38.5 − 17.5
(+24−3=29)
68.8%
38.5 / 56
100.0%
−26
1 1 1 1 = = = = 1 1 = = 1 = 1 = = = = = = 1 = 1 = 1 1 = = = = = 1 1 1 = = = 1 = 1 0 1 1 = 1 1 0 1 1 0 = = = 1 =
–   Protector 1.4.0 32-bit2878+12
−12
(−137)19 − 11
(+14−6=10)
63.3%
19.0 / 30
100.0%
−45
= = 0 1 = 1 1 1 1 1 = = 1 1 = = = 1 = 1 0 1 0 0 1 0 0 1 = 1
–   Gull 1.1 32-bit2878+17
−17
(−137)30 − 12
(+21−3=18)
71.4%
30.0 / 42
100.0%
−2
= 1 = 1 = 1 1 = = 1 = = = = 1 1 = 1 1 1 1 = 1 1 = 1 0 1 = = 1 1 = 1 = = 1 = 1 0 0 1
–   Gull 1.2 32-bit2876+12
−12
(−139)20 − 10
(+16−6=8)
66.7%
20.0 / 30
100.0%
−20
= 1 1 = 0 1 1 1 1 = 1 = 0 = 1 1 1 = = = 0 1 1 1 0 1 0 1 0 1
–   Hiarcs 13.12875+14
−14
(−140)30 − 12
(+21−3=18)
71.4%
30.0 / 42
100.0%
−3
0 1 = 1 = = = = 1 1 1 = = 1 1 = = = 1 1 1 = 1 = 1 = 1 = = 1 1 1 1 = 0 1 1 = 1 0 1 =
–   Gull 0.12a 32-bit2869+21
−21
(−146)26 − 8
(+20−2=12)
76.5%
26.0 / 34
100.0%
+33
= 1 1 = = = = = 1 = 1 1 = 1 = 1 1 0 1 1 1 1 1 = 1 = 0 = 1 1 1 1 1 1
–   Spark 1.0 32-bit2866+12
−12
(−149)21 − 13
(+13−5=16)
61.8%
21.0 / 34
100.0%
−80
= 1 = 1 1 1 1 = = = 0 = 1 1 0 1 0 = = 1 = = 1 1 = = = 1 1 = 0 = 0 =
–   Thinker 5.4d Inert 32-bit2857+10
−10
(−158)37.5 − 8.5
(+31−2=13)
81.5%
37.5 / 46
100.0%
+70
= 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 0 1 1 = = = 1
–   Deep Junior 12 32-bit2857+19
−19
(−158)27 − 8
(+21−2=12)
77.1%
27.0 / 35
100.0%
+25
= 1 = = 1 = 1 = 1 1 1 1 1 = 1 1 = 1 1 1 1 0 1 = 1 = = 1 0 1 1 1 = = 1
–   Gull 0.11a 32-bit2848+20
−21
(−167)25 − 5
(+20−0=10)
83.3%
25.0 / 30
100.0%
+64
1 1 1 1 = 1 = 1 1 = 1 1 1 1 1 = = 1 = 1 1 1 1 = 1 1 = = 1 =
–   Booot 5.1.02845+10
−10
(−170)3 − 1
(+2−0=2)
75.0%
3.0 / 4
100.0%
−12
= = 1 1
–   Deep Junior 11.1a 32-bit2833+18
−18
(−182)22.5 − 7.5
(+17−2=11)
75.0%
22.5 / 30
100.0%
−17
= = 0 = 1 1 1 1 = = 0 1 1 1 = 1 1 1 = = 1 1 1 1 = = 1 = 1 1
–   Protector 1.3.5 32-bit2830+15
−15
(−185)30 − 4
(+26−0=8)
88.2%
30.0 / 34
100.0%
+115
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
–   Grapefruit 1.0 32-bit2827+9
−9
(−188)25.5 − 8.5
(+19−2=13)
75.0%
25.5 / 34
100.0%
−23
= = = 1 = 1 = = 1 = 1 1 1 1 = = 1 1 1 1 1 = 1 1 1 1 = 1 = 0 0 = 1 1
–   Protector 1.3.4 32-bit2826+16
−16
(−189)24 − 6
(+18−0=12)
80.0%
24.0 / 30
100.0%
+8
1 1 1 = = = 1 1 1 1 1 = = = 1 = 1 1 = 1 1 = 1 = 1 1 1 1 = =
–   Deep Sjeng WC2008 32-bit2826+12
−12
(−189)18 − 12
(+10−4=16)
60.0%
18.0 / 30
100.0%
−128
1 = 1 0 0 = = = 0 1 = = = 1 1 = 1 = 1 0 1 = = 1 1 = = = = =
–   Cyclone xTreme2825+13
−13
(−190)21.5 − 8.5
(+14−1=15)
71.7%
21.5 / 30
100.0%
−56
= = = 1 = = 1 0 = = = 1 1 1 = 1 1 = 1 1 = 1 = 1 = 1 = 1 = 1
–   Booot 5.02825+15
−16
(−190)26.5 − 7.5
(+21−2=11)
77.9%
26.5 / 34
100.0%
+3
1 1 1 1 = 1 1 1 1 1 1 = = 1 = 1 0 = = = 1 1 0 1 1 = 1 1 1 1 = 1 = =
–   Spark 0.4 32-bit2822+16
−16
(−193)22 − 8
(+15−1=14)
73.3%
22.0 / 30
100.0%
−49
1 = = 1 1 = = 1 1 = = = 1 = 1 = 1 1 1 0 = = = 1 = 1 1 1 1 =
–   Deep Junior 11.2 32-bit2820+22
−22
(−195)25.5 − 8.5
(+21−4=9)
75.0%
25.5 / 34
100.0%
−16
1 1 = 1 1 1 0 = = 1 1 1 = = 1 0 1 1 1 1 = 1 1 1 1 = 0 0 = 1 1 1 = 1
–   Onno 1.2.70 32-bit2787+18
−18
(−228)25 − 5
(+21−1=8)
83.3%
25.0 / 30
100.0%
+18
1 1 1 1 0 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 4 32-bit
played with current
participants of this list
Represented by
1-2-CPU    68Rybka 4.1 64-bit
32-bit    415Rybka 4.1 32-bit
32-bit 1-2-CPU    415Rybka 4.1 32-bit
32-bit single-CPU    415Rybka 4.1 32-bit
Single-CPU    68Rybka 4.1 64-bit

Created in 2005-2013 by CCRL team
Last games added on November 11, 2017