CCRL 40/15
Downloads and Statistics
February 28, 2021
Testing summary:
Total: 1'220'774 games
played by 2'799 programs

White wins: 419'368 (34.4%)
Black wins: 308'512 (25.3%)
Draws: 492'894 (40.4%)
White score: 54.5%

Engine Details

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Rybka 4 32-bit (3017+14
−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
–   Xiphos 0.3 64-bit3092+19
−19
(+75)9.5 − 10.5
(+4−5=11)
47.5%
9.5 / 20
0.0%
+63
0 = = 0 = 1 = 1 = = 1 1 = 0 = = 0 0 = =
–   Minic 2.46 64-bit3055+22
−22
(+38)10 − 10
(+5−5=10)
50.0%
10.0 / 20
0.3%
+36
1 = 0 = = = 0 = = = = 1 0 = 0 1 0 1 = 1
–   Wasp 3.60 64-bit3039+20
−20
(+22)8 − 8
(+2−2=12)
50.0%
8.0 / 16
4.1%
+22
0 = = = = = = 1 = = = 1 = = 0 =
–   Nemorino 4.00 64-bit3039+17
−17
(+22)6.5 − 3.5
(+3−0=7)
65.0%
6.5 / 10
2.9%
+105
= 1 = = = = = 1 = 1
–   RubiChess 1.4 64-bit3036+17
−17
(+19)8 − 8
(+3−3=10)
50.0%
8.0 / 16
5.0%
+23
= = 1 0 = = = 1 = 0 = = = 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-bit3024+20
−20
(+7)6 − 6
(+2−2=8)
50.0%
6.0 / 12
30.9%
+10
= 0 = = = 1 0 1 = = = =
–   Critter 1.01 32-bit3019+18
−18
(+2)20 − 12
(+11−3=18)
62.5%
20.0 / 32
43.5%
+72
= 1 = = 1 = 0 1 1 = = 1 = = 1 1 0 1 = 1 = = = = 1 = 0 = = 1 = =
–   Stockfish 2.0.1 32-bit3011+16
−16
(−6)17 − 13
(+10−6=14)
56.7%
17.0 / 30
72.9%
+34
1 1 = = = = = 0 0 = 1 = = 0 = 1 1 1 = 1 = = = 0 1 0 = 1 1 0
–   Topple 0.8.0 64-bit3010+24
−24
(−7)6.5 − 7.5
(+4−5=5)
46.4%
6.5 / 14
68.7%
−31
0 1 = 1 0 0 = = 0 1 1 = 0 =
–   Stockfish 1.9.1 32-bit3000+16
−16
(−17)20 − 22
(+7−9=26)
47.6%
20.0 / 42
95.0%
−29
= = = = 1 = = 1 = = = = = 0 1 = 0 0 1 = 1 = = 0 0 = 1 1 0 = = = = 0 = 0 = = 0 = = =
–   Minic 2.33 64-bit2995+27
−27
(−22)8.5 − 3.5
(+6−1=5)
70.8%
8.5 / 12
92.0%
+107
1 = 0 = = = 1 1 1 1 = 1
–   Critter 0.90 32-bit2989+15
−15
(−28)23.5 − 18.5
(+12−7=23)
56.0%
23.5 / 42
99.8%
+4
= 0 1 0 = 0 1 = 1 = 1 = = 0 = = = = 1 = = 1 = = = = = 1 0 0 1 = 1 1 1 = = = = 0 = 1
–   Stockfish 1.8 32-bit2989+17
−17
(−28)21.5 − 13.5
(+10−2=23)
61.4%
21.5 / 35
99.5%
+33
1 = 1 = 1 = 1 1 = = = 1 = 0 = = = = 1 = = = 1 = = = = 1 0 = = = 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
= = = = = = 0 = 1 = 1 = = 1 0 1 = 1 0 = = 0 1 = 1 1 0 0 = = = 0 = = 1 0 = 1 = = 1 = = = 1 = 0 = 1 0 = 1 1 =
–   Naum 4.2 32-bit2958+10
−10
(−59)39.5 − 31.5
(+15−7=49)
55.6%
39.5 / 71
100.0%
−29
= = 1 = = = = 0 = = = = = = = 0 = = 1 0 = = = 1 = 0 1 = 1 = = = = = = = = 0 = 0 = 1 = = = = = = = = = = 1 1 1 1 = 0 1 1 = = 1 = = = = 1 = = 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 0 1 = = 1 1 1 1 = = = = 1 0 = 1 = 1 = 1 = = 1 = =
–   Shredder 12 32-bit2928+8
−7
(−89)65 − 37
(+37−9=56)
63.7%
65.0 / 102
100.0%
−9
= 1 0 0 = 1 1 = 1 1 = = = = 1 = 1 = 1 = = = 1 = 1 = 1 1 1 1 1 = 0 1 = = 1 = = 1 = = = = = = = = 0 1 1 = = 1 = = = = 0 1 = = = = 1 = = = = = 0 1 = 1 = = 1 = = 1 1 = 0 = 1 1 = 0 1 1 1 1 = = = 1 = = = 1 1 0
–   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 = = = = = 0 = = 0 = 1 1 1 = 0 1 = = = = = 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 = = = = 1 0 = = = 1 1 1 = = 1 = 1 1 0 = 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 1 = 1 = 1 = = = 1 = 1 = 1 0 1 1 1 1 = = 1 1 = 1 1 0 =
–   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 = = 0 1 1 = = 1 1 1 = 1 1 = 1 1 = 1 = 1 = 1 1 1 = = = 1 0 = = 0 1 1 =
–   Hiarcs 13.22895+11
−10
(−122)21 − 9
(+16−4=10)
70.0%
21.0 / 30
100.0%
+12
= 1 0 1 = 1 1 0 1 1 = = = = 1 1 1 1 = 1 0 1 1 = = 1 0 1 = 1
–   Fritz 122886+11
−11
(−131)33.5 − 14.5
(+24−5=19)
69.8%
33.5 / 48
100.0%
−1
1 1 1 = 0 1 = 0 = 1 = = 1 1 1 1 = = 1 0 = 1 = = 1 1 = 1 = = 1 = = 1 0 1 1 = 1 = 1 1 = 1 = 1 1 0
–   Gull 1.0a 32-bit2885+12
−12
(−132)24.5 − 9.5
(+18−3=13)
72.1%
24.5 / 34
100.0%
+11
= 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+11
−11
(−139)19 − 11
(+14−6=10)
63.3%
19.0 / 30
100.0%
−47
= = 0 1 = 1 1 1 = = = 1 = 1 0 1 0 0 1 0 0 1 = 1 1 1 = = 1 1
–   Critter 0.70 32-bit2877+19
−19
(−140)38.5 − 17.5
(+24−3=29)
68.8%
38.5 / 56
100.0%
−29
= = = = 1 1 1 = 1 0 = = = 1 = = 1 = = 1 0 1 1 = 1 1 0 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 0 1 = 1 1 = = 1 = = = = 1 1 = 1 1 = 1 0 1 = = 1 1 = 1 = = 1 = 1 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 1 1 = = = 0 1 1 1 1 1 = 1 = 0 = 1 1 0 1 0 1 0 1
–   Hiarcs 13.12874+14
−14
(−143)30 − 12
(+21−3=18)
71.4%
30.0 / 42
100.0%
−6
1 1 1 = = 1 1 = = = 1 = = 0 1 1 1 = 1 = 0 1 = 1 = = 1 1 1 1 1 0 1 = 1 = = = = 1 = 1
–   Gull 0.12a 32-bit2870+21
−21
(−147)26 − 8
(+20−2=12)
76.5%
26.0 / 34
100.0%
+32
= 1 1 0 1 1 1 1 1 = 1 1 1 = = = = = 1 = 1 1 = 1 = = 0 = 1 1 1 1 1 1
–   Spark 1.0 32-bit2864+11
−11
(−153)21 − 13
(+13−5=16)
61.8%
21.0 / 34
100.0%
−84
= = 1 1 1 1 1 = = 1 = = 1 1 = = = 1 1 = 0 = 0 = = = 0 = 1 1 0 1 0 =
–   Thinker 5.4d Inert 32-bit2856+10
−10
(−161)37.5 − 8.5
(+31−2=13)
81.5%
37.5 / 46
100.0%
+67
= = 1 0 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 =
–   Deep Junior 12 32-bit2856+18
−19
(−161)27 − 8
(+21−2=12)
77.1%
27.0 / 35
100.0%
+22
= 1 = = = = = 1 = = 1 0 1 1 1 1 1 = 1 1 1 1 0 1 1 = 1 = 1 1 1 1 1 = 1
–   Gull 0.11a 32-bit2847+21
−21
(−170)25 − 5
(+20−0=10)
83.3%
25.0 / 30
100.0%
+61
1 1 1 1 1 = = 1 = 1 1 1 1 = 1 1 = = 1 = 1 1 1 1 = 1 = 1 1 =
–   Booot 5.1.02844+10
−10
(−173)3 − 1
(+2−0=2)
75.0%
3.0 / 4
100.0%
−15
= 1 1 =
–   Deep Junior 11.1a 32-bit2831+17
−17
(−186)22.5 − 7.5
(+17−2=11)
75.0%
22.5 / 30
100.0%
−21
1 = 1 1 = = 0 = 1 1 1 1 = = 0 1 1 1 = 1 1 1 = = 1 1 1 1 = =
–   Protector 1.3.5 32-bit2828+15
−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-bit2826+9
−9
(−191)25.5 − 8.5
(+19−2=13)
75.0%
25.5 / 34
100.0%
−26
= = 1 = 1 1 1 1 1 = 0 0 = 1 = = 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
= = 0 1 = = = 1 1 = = = = = 1 = 1 = 1 0 1 = = 1 1 = 1 0 0 =
–   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 = = =
–   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
–   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 0 = = = 1 1 1 = 1 1 = 1 1
–   Spark 0.4 32-bit2821+16
−16
(−196)22 − 8
(+15−1=14)
73.3%
22.0 / 30
100.0%
−52
= 1 1 = = = 1 = = 1 1 1 1 = 1 = 1 1 1 0 = = = 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
0 = = 1 1 1 = = = 1 1 1 = 1 1 0 1 1 1 1 = 1 1 1 1 = 1 1 = 1 1 1 0 0
–   Onno 1.2.70 32-bit2786+18
−18
(−231)25 − 5
(+21−1=8)
83.3%
25.0 / 30
100.0%
+15
1 1 1 1 = 1 1 1 1 = = 1 1 1 = 1 = 1 = = 1 1 1 1 0 1 1 1 1 =

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Created in 2005-2013 by CCRL team
Last games added on February 28, 2021