CCRL 40/15
Downloads and Statistics
February 20, 2021
Testing summary:
Total: 1'218'554 games
played by 2'788 programs

White wins: 418'779 (34.4%)
Black wins: 308'204 (25.3%)
Draws: 491'571 (40.3%)
White score: 54.5%

Engine Details

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Rybka 4 32-bit (3017+15
−14		)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
–   Xiphos 0.3 64-bit3091+19
−19		(+74)9.5 − 10.5
(+4−5=11)		47.5%
9.5 / 20
0.0%
+62
= = 1 1 = 0 = = 0 0 = = 0 = = 0 = 1 = 1
–   Minic 2.46 64-bit3054+23
−22		(+37)10 − 10
(+5−5=10)		50.0%
10.0 / 20
0.4%
+35
1 = 0 = = = 0 = = = 0 1 = 1 = 1 0 = 0 1
–   Wasp 3.60 64-bit3039+20
−20		(+22)8 − 8
(+2−2=12)		50.0%
8.0 / 16
4.2%
+22
= = = = = 1 0 = = = = 1 = = 0 =
–   Nemorino 4.00 64-bit3038+17
−17		(+21)6.5 − 3.5
(+3−0=7)		65.0%
6.5 / 10
2.9%
+104
= 1 = = = = = 1 = 1
–   RubiChess 1.4 64-bit3036+17
−17		(+19)8 − 8
(+3−3=10)		50.0%
8.0 / 16
5.1%
+23
= 0 = = = 0 = 1 = = 1 0 = = = 1
–   ChessBrainVB 3.683024+21
−21		(+7)7 − 7
(+3−3=8)		50.0%
7.0 / 14
29.3%
+9
= 1 = 1 = = 0 0 = 0 1 = = =
–   Arasan 20.5 64-bit3023+20
−20		(+6)6 − 6
(+2−2=8)		50.0%
6.0 / 12
31.1%
+9
0 1 = = = = = 0 = = = 1
–   Critter 1.01 32-bit3019+18
−18		(+2)20 − 12
(+11−3=18)
62.5%
20.0 / 32
43.6%
+72
= 1 = = 1 = 0 1 1 = = 1 = = 1 1 0 1 = 1 = = = = 1 = 0 = = 1 = =
–   Stockfish 2.0.1 32-bit3010+17
−16		(−7)17 − 13
(+10−6=14)
56.7%
17.0 / 30
73.2%
+33
1 1 = = = = = = = 0 1 0 = 1 1 0 1 1 = 1 = 0 0 = 1 = = 0 = 1
–   Topple 0.8.0 64-bit3009+24
−24		(−8)6.5 − 7.5
(+4−5=5)		46.4%
6.5 / 14
70.8%
−32
0 1 1 = 0 = 0 1 = 1 0 0 = =
–   Stockfish 1.9.1 32-bit3000+16
−16		(−17)20 − 22
(+7−9=26)
47.6%
20.0 / 42
94.7%
−29
= = = = 1 = = 1 = = = = = 0 0 = = 0 = 1 1 = = 0 = 0 = = 0 = = = 0 1 = 0 0 1 = 1 = =
–   Minic 2.33 64-bit2995+27
−27		(−22)8.5 − 3.5
(+6−1=5)		70.8%
8.5 / 12
92.1%
+107
= = 1 1 1 1 = 1 1 = 0 =
–   Stockfish 1.8 32-bit2989+17
−16		(−28)21.5 − 13.5
(+10−2=23)
61.4%
21.5 / 35
99.5%
+33
1 = 0 = = = 1 = = = 1 = 1 1 = = = 1 = 0 = = = = 1 = = = 1 = = = = 1 1
–   Critter 0.90 32-bit2989+15
−15		(−28)23.5 − 18.5
(+12−7=23)
56.0%
23.5 / 42
99.7%
+4
= 0 1 0 0 = = = = 1 = = 1 = = = = = = 1 1 1 = = = = 0 = 1 1 0 0 1 = 0 1 = 1 = 1 = =
–   Stockfish 1.7.1 32-bit2976+16
−16		(−41)29.5 − 24.5
(+15−10=29)
54.6%
29.5 / 54
100.0%
−13
= 1 = = 1 = 1 = 1 = = 1 0 1 = 1 0 = = 0 1 = 1 1 0 0 = = = = 1 = 0 = 1 0 = 1 1 = = 0 = = 1 0 = = = = = = 0 =
–   Naum 4.2 32-bit2957+10
−10		(−60)39.5 − 31.5
(+15−7=49)
55.6%
39.5 / 71
100.0%
−30
= = 1 = = = = = = = = = = = 0 = = 1 0 = = 1 = = = = = = = = = = 1 1 1 1 = 0 1 1 = = 1 = = = = 1 = 0 = = 1 = 0 1 = 1 = = 0 = 0 1 = = = = = = =
–   Deep Sjeng c't 20102940+10
−10		(−77)24.5 − 13.5
(+14−3=21)
64.5%
24.5 / 38
100.0%
+7
= = = 1 = = 1 0 = 1 = 1 = 1 = = 1 = = 0 1 = = 1 1 1 1 = = = = = = 0 1 = 1 1
–   Shredder 12 32-bit2928+8
−7		(−89)65 − 37
(+37−9=56)
63.7%
65.0 / 102
100.0%
−9
= 0 0 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 = = = = = 0 1 = 1 = = 1 = = 1 1 = 0 = 1 1 = 0 0 1 1 1 1 0 = = 1 1 = = = =
–   Critter 0.80 32-bit2924+15
−15		(−93)25 − 15
(+14−4=22)
62.5%
25.0 / 40
100.0%
−20
0 1 1 = = = = = = 1 1 1 = = = 1 = 0 = = 0 = 1 1 1 = 0 1 = = = = = 1 1 = = 1 1 =
–   Komodo 1.3 32-bit2916+16
−16		(−101)23 − 11
(+14−2=18)
67.6%
23.0 / 34
100.0%
+2
1 = 1 1 0 = 1 = = 1 = 1 = 1 = 1 = = = = 1 0 = = = 1 1 1 = = 1 1 = =
–   Spike 1.4 Leiden2914+8
−8		(−103)22 − 8
(+16−2=12)
73.3%
22.0 / 30
100.0%
+48
= 1 = 1 0 1 1 1 1 = = 1 1 = 1 1 0 = = 1 1 1 = 1 = 1 = = = 1
–   Komodo 1.2 32-bit2896+14
−14		(−121)49.5 − 18.5
(+34−3=31)
72.8%
49.5 / 68
100.0%
+20
= = 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 = = 0 = = = 1 1 = 1 = 0 1 = 1 1 1 1 1 = = =
–   Hiarcs 13.22894+11
−10		(−123)21 − 9
(+16−4=10)
70.0%
21.0 / 30
100.0%
+11
= 1 0 1 = 1 0 1 1 = = 1 0 1 = 1 1 1 = 1 1 0 1 1 = = = = 1 1
–   Fritz 122885+11
−11		(−132)33.5 − 14.5
(+24−5=19)
69.8%
33.5 / 48
100.0%
−2
1 = 1 1 = 1 1 = 0 = = 1 = = 1 1 1 1 = = 1 0 = 1 = = 1 1 = 1 = = 1 = = 1 0 1 1 = 1 = 1 1 0 1 1 0
–   Gull 1.0a 32-bit2884+12
−12		(−133)24.5 − 9.5
(+18−3=13)
72.1%
24.5 / 34
100.0%
+10
= 1 = 1 1 = = 1 1 1 = 1 1 = 1 1 1 = = 1 1 0 = 1 = = = = 0 1 1 1 1 0
–   Protector 1.4.0 32-bit2877+11
−11		(−140)19 − 11
(+14−6=10)
63.3%
19.0 / 30
100.0%
−48
= = = 1 = 1 0 1 0 0 1 0 0 1 = 1 1 1 = = 1 1 = = 0 1 = 1 1 1
–   Gull 1.2 32-bit2876+12
−12		(−141)20 − 10
(+16−6=8)
66.7%
20.0 / 30
100.0%
−22
1 1 0 1 0 1 0 1 = 1 1 = 0 1 1 1 1 = 1 = 0 = 1 1 1 = = = 0 1
–   Critter 0.70 32-bit2876+19
−19		(−141)38.5 − 17.5
(+24−3=29)
68.8%
38.5 / 56
100.0%
−30
1 0 1 1 = 1 1 0 1 0 = = = 1 1 1 1 1 = = = = 1 1 = = 1 = 1 = = = = = = 1 = 1 = 1 1 = = = 1 = 1 = = = = = 1 1 1 =
–   Gull 1.1 32-bit2876+17
−17		(−141)30 − 12
(+21−3=18)
71.4%
30.0 / 42
100.0%
−6
= 1 = 1 0 1 1 1 1 = 1 1 = 1 0 1 = = 1 1 = 1 = = 1 = 1 = 1 1 = = 1 = = = = 1 1 0 = 1
–   Hiarcs 13.12873+14
−14		(−144)30 − 12
(+21−3=18)
71.4%
30.0 / 42
100.0%
−7
1 = 1 = = 1 1 1 1 1 = 0 1 1 0 1 = 1 = = = = 1 = 1 1 1 = 1 = = 1 1 0 1 = = 1 1 = = =
–   Gull 0.12a 32-bit2869+21
−21		(−148)26 − 8
(+20−2=12)
76.5%
26.0 / 34
100.0%
+31
1 1 0 1 1 1 1 1 = 1 = 0 = 1 1 1 1 1 1 = 1 1 = = = = = 1 = 1 1 = 1 =
–   Spark 1.0 32-bit2863+11
−11		(−154)21 − 13
(+13−5=16)
61.8%
21.0 / 34
100.0%
−85
= 1 = 1 1 1 1 = = = 0 = 1 1 0 1 0 = = 1 1 = 0 = 0 = = 1 = = 1 1 = =
–   Thinker 5.4d Inert 32-bit2856+10
−10		(−161)37.5 − 8.5
(+31−2=13)
81.5%
37.5 / 46
100.0%
+67
= 0 = 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
–   Deep Junior 12 32-bit2855+19
−18		(−162)27 − 8
(+21−2=12)
77.1%
27.0 / 35
100.0%
+21
= 1 = = 1 = 1 = 1 1 1 1 1 = 1 = 1 = = 1 0 1 1 1 = = 1 = 1 1 1 1 0 1 1
–   Gull 0.11a 32-bit2846+21
−21		(−171)25 − 5
(+20−0=10)
83.3%
25.0 / 30
100.0%
+60
1 1 1 1 = 1 = 1 1 = 1 1 1 1 1 = = 1 = 1 1 1 1 = 1 1 = = 1 =
–   Booot 5.1.02843+10
−10		(−174)3 − 1
(+2−0=2)		75.0%
3.0 / 4
100.0%
−16
= = 1 1
–   Deep Junior 11.1a 32-bit2830+17
−17		(−187)22.5 − 7.5
(+17−2=11)
75.0%
22.5 / 30
100.0%
−22
= = 0 = 1 1 1 1 = = 0 1 1 1 = 1 1 1 = = 1 1 1 1 = = 1 = 1 1
–   Protector 1.3.5 32-bit2828+14
−15		(−189)30 − 4
(+26−0=8)
88.2%
30.0 / 34
100.0%
+111
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-bit2825+9
−9		(−192)25.5 − 8.5
(+19−2=13)
75.0%
25.5 / 34
100.0%
−27
1 1 1 = 1 1 1 1 = 0 0 = 1 = = = 1 = 1 = = 1 1 1 = 1 = = 1 = 1 1 1 1
–   Deep Sjeng WC2008 32-bit2825+12
−12		(−192)18 − 12
(+10−4=16)
60.0%
18.0 / 30
100.0%
−131
1 0 1 = = 1 1 = = = = = 1 = 1 0 0 = 1 = 1 = = = 0 1 = = = 1
–   Booot 5.02824+15
−15		(−193)26.5 − 7.5
(+21−2=11)
77.9%
26.5 / 34
100.0%
0
= 1 = 1 0 = = = 1 1 0 1 1 = 1 1 1 1 = 1 = = 1 1 1 = 1 1 = 1 1 1 1 1
–   Protector 1.3.4 32-bit2824+15
−15		(−193)24 − 6
(+18−0=12)
80.0%
24.0 / 30
100.0%
+4
= 1 1 = 1 = 1 1 1 1 = = 1 1 1 = = = 1 = 1 1 1 1 1 1 1 = = =
–   Cyclone xTreme2823+13
−13		(−194)21.5 − 8.5
(+14−1=15)
71.7%
21.5 / 30
100.0%
−60
= = = 1 = = = 1 = 1 = 1 = 1 1 = 1 1 1 0 = = = 1 1 1 = 1 = 1
–   Spark 0.4 32-bit2820+16
−16		(−197)22 − 8
(+15−1=14)
73.3%
22.0 / 30
100.0%
−53
1 0 = = = 1 = 1 1 1 1 = 1 = = 1 1 = 1 = 1 1 = 1 1 = = = 1 =
–   Deep Junior 11.2 32-bit2816+21
−21		(−201)25.5 − 8.5
(+21−4=9)
75.0%
25.5 / 34
100.0%
−22
1 1 = 1 1 1 1 = = 1 1 1 = 1 1 1 = 1 1 1 1 0 1 1 0 0 0 = = 1 1 1 = =
–   Onno 1.2.70 32-bit2785+18
−18		(−232)25 − 5
(+21−1=8)
83.3%
25.0 / 30
100.0%
+14
1 = = 1 1 1 = 1 = 1 = = 1 1 1 1 = 1 1 1 1 1 1 1 0 1 1 1 1 =
1563 games: 684 wins, 154 losses, 725 draws (46.4%), score: 67.0%

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Created in 2005-2013 by CCRL team
Last games added on February 20, 2021