CCRL 40/15
Downloads and Statistics
April 18, 2021
Testing summary:
Total: 1'237'253 games
played by 2'822 programs

White wins: 424'164 (34.3%)
Black wins: 311'650 (25.2%)
Draws: 501'439 (40.5%)
White score: 54.5%

Engine Details

Options
Show each game results
Rybka 1.0 64-bit (2824+14
−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
–   DiscoCheck 5.2 64-bit2899+17
−18		(+75)2.5 − 7.5
(+1−6=3)		25.0%
2.5 / 10
0.0%
−102
0 = 0 0 1 = 0 0 = 0
–   Rybka 1.2 64-bit2899+18
−18		(+75)10.5 − 21.5
(+3−14=15)
32.8%
10.5 / 32
0.0%
−30
0 0 0 1 0 = 0 = = 0 = = = 0 0 = = = 0 1 0 = = 0 0 = 0 = 0 = = 1
–   iCE 2.0 64-bit2891+17
−17		(+67)5 − 5
(+2−2=6)		50.0%
5.0 / 10
0.0%
+63
1 = 0 1 = = = = 0 =
–   Demolito 2017-08-26 64-bit2889+20
−20		(+65)1 − 7
(+1−7=0)		12.5%
1.0 / 8
0.0%
−324
0 0 1 0 0 0 0 0
–   Topple 0.7.1 64-bit2888+25
−25		(+64)4.5 − 3.5
(+3−2=3)		56.3%
4.5 / 8
0.0%
+106
= 0 1 = = 1 0 1
–   Arasan 18.2 64-bit2886+29
−29		(+62)4.5 − 5.5
(+3−4=3)		45.0%
4.5 / 10
0.0%
+20
1 = 1 = 0 0 1 0 0 =
–   Stash 23.0 64-bit2881+28
−28		(+57)3.5 − 4.5
(+2−3=3)		43.8%
3.5 / 8
0.0%
+8
1 = 0 = 0 0 1 =
–   Vajolet2 1.44 64-bit2875+31
−31		(+51)6 − 4
(+3−1=6)		60.0%
6.0 / 10
0.1%
+106
= = = = 1 1 0 1 = =
–   Amoeba 2.5 64-bit2872+23
−23		(+48)7 − 9
(+4−6=6)		43.8%
7.0 / 16
0.0%
+10
= 0 = 1 = 1 0 1 0 = = 0 0 1 0 =
–   Scorpio 2.7.9 64-bit2866+25
−25		(+42)5 − 5
(+4−4=2)		50.0%
5.0 / 10
0.2%
+36
0 = 0 = 1 0 1 1 1 0
–   The Baron 3.44 64-bit2866+12
−12		(+42)4 − 4
(+2−2=4)		50.0%
4.0 / 8
0.0%
+42
0 = 0 1 = 1 = =
–   Vajolet2 1.45 64-bit2866+20
−20		(+42)7.5 − 2.5
(+6−1=3)		75.0%
7.5 / 10
0.0%
+213
0 1 1 = 1 1 = 1 1 =
–   Crafty 25.0 64-bit2863+20
−20		(+39)4.5 − 5.5
(+2−3=5)		45.0%
4.5 / 10
0.1%
+11
= = 0 = = 0 0 1 = 1
–   Arasan 18.0 64-bit2859+26
−26		(+35)3 − 7
(+2−6=2)		30.0%
3.0 / 10
0.9%
−112
0 1 0 = 0 1 0 0 = 0
–   Gaviota 1.0 64-bit2859+11
−11		(+35)4.5 − 5.5
(+2−3=5)		45.0%
4.5 / 10
0.0%
+7
= = = 0 = 0 0 = 1 1
–   Marvin 3.3.2 64-bit2857+21
−21		(+33)4.5 − 7.5
(+2−5=5)		37.5%
4.5 / 12
0.4%
−47
0 0 1 = 1 = 0 0 = 0 = =
–   Francesca MAD 0.27 64-bit2856+26
−26		(+32)2 − 4
(+1−3=2)		33.3%
2.0 / 6
1.8%
−80
= = 1 0 0 0
–   EXchess 7.92b 64-bit2853+22
−22		(+29)5 − 5
(+2−2=6)		50.0%
5.0 / 10
1.3%
+29
= 0 1 0 = = 1 = = =
–   Tucano 7.06 64-bit2852+20
−20		(+28)10 − 10
(+4−4=12)		50.0%
10.0 / 20
1.2%
+28
0 = 0 1 = 1 = = = = = = = 0 = 1 0 = 1 =
–   Andscacs 0.70 64-bit2851+27
−27		(+27)5 − 5
(+2−2=6)		50.0%
5.0 / 10
3.9%
+23
0 = = 1 = = 0 = 1 =
–   Rodent 1.7 64-bit2850+19
−19		(+26)6 − 4
(+4−2=4)		60.0%
6.0 / 10
1.4%
+84
0 = 1 = = 1 1 = 1 0
–   Atlas 3.80 64-bit2847+14
−14		(+23)6 − 4
(+4−2=4)		60.0%
6.0 / 10
1.1%
+85
0 1 0 1 = = 1 = = 1
–   Vajolet2 1.28 64-bit2845+22
−22		(+21)2.5 − 5.5
(+1−4=3)		31.3%
2.5 / 8
5.8%
−102
0 0 0 = = 1 0 =
–   Tornado 8.0 64-bit2842+13
−13		(+18)7 − 3
(+5−1=4)		70.0%
7.0 / 10
3.0%
+150
= 1 1 0 1 1 = 1 = =
–   Arasan 17.5 64-bit2840+25
−25		(+16)4.5 − 5.5
(+2−3=5)		45.0%
4.5 / 10
13.9%
−15
= = 0 1 = 0 0 = 1 =
–   The Baron 3.43 64-bit2837+24
−24		(+13)6 − 4
(+3−1=6)		60.0%
6.0 / 10
18.2%
+68
1 = 0 1 = = = = = 1
–   The Baron 3.41 64-bit2837+22
−22		(+13)4.5 − 5.5
(+2−3=5)		45.0%
4.5 / 10
17.1%
−14
= 1 0 1 = 0 = = 0 =
–   Asymptote 0.6.3 64-bit2836+24
−24		(+12)4 − 6
(+3−5=2)		40.0%
4.0 / 10
20.6%
−62
1 = = 1 0 0 1 0 0 0
–   Pedone 1.3 64-bit2835+23
−23		(+11)6 − 4
(+4−2=4)		60.0%
6.0 / 10
21.6%
+79
= 1 = 0 1 1 = = 1 0
–   Counter 3.2 64-bit2834+19
−18		(+10)7 − 9
(+4−6=6)		43.8%
7.0 / 16
19.9%
−30
0 = 1 = 0 0 = 0 = 0 1 1 0 = = 1
–   Winter 0.4a 64-bit2833+24
−24		(+9)4.5 − 7.5
(+2−5=5)		37.5%
4.5 / 12
26.2%
−67
1 0 0 0 = = = 1 = 0 0 =
–   Fizbo 1.2 64-bit2832+27
−27		(+8)3.5 − 6.5
(+1−4=5)		35.0%
3.5 / 10
30.3%
−78
= = 0 1 = 0 = 0 0 =
–   SmarThink 1.50 64-bit2830+24
−24		(+6)4.5 − 5.5
(+1−2=7)		45.0%
4.5 / 10
34.2%
−21
= = = 0 0 = = = 1 =
–   Scorpio 2.7.8 64-bit2829+27
−27		(+5)4 − 6
(+2−4=4)		40.0%
4.0 / 10
38.0%
−58
0 = = 0 = = 1 0 0 1
–   Texel 1.02 64-bit2827+28
−28		(+3)8 − 2
(+8−2=0)		80.0%
8.0 / 10
43.9%
+284
1 1 1 1 1 1 0 1 0 1
–   Pedone 1.2 64-bit2825+26
−26		(+1)6 − 4
(+4−2=4)		60.0%
6.0 / 10
48.2%
+63
0 = = = 1 1 0 1 = 1
–   Tucano 7.05 64-bit2823+28
−29		(−1)4 − 6
(+1−3=6)		40.0%
4.0 / 10
51.9%
−59
0 = 0 = = = = 1 0 =
–   chess22k 1.6 64-bit2823+28
−28		(−1)5 − 5
(+2−2=6)		50.0%
5.0 / 10
53.7%
−4
= = 1 1 0 = 0 = = =
–   NirvanaChess 1.5 64-bit2821+29
−29		(−3)6.5 − 3.5
(+4−1=5)		65.0%
6.5 / 10
58.0%
+83
0 1 = = 1 = = = 1 1
–   SmarThink 1.40 64-bit2821+32
−32		(−3)7.5 − 2.5
(+6−1=3)		75.0%
7.5 / 10
57.2%
+168
1 1 = 1 0 = 1 = 1 1
–   DisasterArea 1.542821+31
−31		(−3)6.5 − 3.5
(+5−2=3)		65.0%
6.5 / 10
56.8%
+99
1 1 = = 1 0 1 = 1 0
–   Tornado 6.0 64-bit2819+21
−21		(−5)5.5 − 4.5
(+5−4=1)		55.0%
5.5 / 10
65.3%
+32
0 0 1 1 1 1 1 = 0 0
–   Tornado 7.0 64-bit2816+19
−19		(−8)4.5 − 5.5
(+1−2=7)		45.0%
4.5 / 10
75.5%
−35
= = = 0 0 = = = 1 =
–   Topple 0.7.0 64-bit2813+27
−27		(−11)5.5 − 6.5
(+3−4=5)		45.8%
5.5 / 12
75.7%
−34
= 1 0 1 0 = = 0 0 = = 1
–   Minic 1.09 64-bit2812+27
−27		(−12)9 − 5
(+7−3=4)		64.3%
9.0 / 14
79.3%
+92
1 1 0 1 1 0 = 1 = 1 = 1 = 0
–   NirvanaChess 1.7 64-bit2811+31
−31		(−13)4.5 − 3.5
(+4−3=1)		56.3%
4.5 / 8
78.2%
+31
1 1 0 1 0 = 0 1
–   Zurichess Luzern 64-bit2792+24
−24		(−32)9.5 − 6.5
(+7−4=5)		59.4%
9.5 / 16
98.9%
+32
0 1 1 1 1 0 0 1 = = 1 0 = = = 1
–   Arasan 17.1 64-bit2791+31
−31		(−33)4.5 − 5.5
(+1−2=7)		45.0%
4.5 / 10
97.2%
−60
= 0 = = 1 = 0 = = =
–   Hiarcs 11.12789+15
−15		(−35)15 − 15
(+7−7=16)
50.0%
15.0 / 30
100.0%
−36
0 = 0 = = 0 = = = 1 = = 1 0 = 0 = 1 1 = 0 = = = = 1 1 1 = 0
–   Toga II 1.3.12789+12
−11		(−35)16.5 − 15.5
(+11−10=11)
51.6%
16.5 / 32
100.0%
−25
1 = = = = = 0 = 0 1 = 0 1 0 1 0 1 0 = 0 1 1 = = 1 1 1 0 0 0 = 1
–   Arasan 17.2 64-bit2788+28
−28		(−36)3 − 5
(+1−3=4)		37.5%
3.0 / 8
98.9%
−109
0 0 0 = = = = 1
–   Bobcat 6.4b 64-bit2787+24
−24		(−37)3.5 − 2.5
(+2−1=3)		58.3%
3.5 / 6
99.6%
+9
= = 1 0 1 =
–   Rybka 1.0 32-bit2786+14
−14		(−38)13 − 14
(+3−4=20)		48.1%
13.0 / 27
100.0%
−49
= = 1 = = = 1 = 0 = = 0 = = = = = = = = 0 0 = = = 1 =
–   The Baron 3.29 64-bit2785+18
−18		(−39)5 − 5
(+2−2=6)		50.0%
5.0 / 10
100.0%
−39
= 0 = = 0 = 1 = = 1
–   Rodent 1.5 64-bit2784+21
−21		(−40)4.5 − 5.5
(+3−4=3)		45.0%
4.5 / 10
99.9%
−67
= 0 1 1 0 0 = 0 = 1
–   RuyDos 1.1.6 64-bit2782+17
−17		(−42)6.5 − 3.5
(+5−2=3)		65.0%
6.5 / 10
100.0%
+53
1 = 0 = 1 = 1 1 0 1
–   Crafty 24.0 64-bit2771+28
−28		(−53)3 − 3
(+2−2=2)		50.0%
3.0 / 6
100.0%
−45
= 0 = 1 0 1
–   Strelka 1.8 32-bit2769+19
−19		(−55)22.5 − 9.5
(+14−1=17)
70.3%
22.5 / 32
100.0%
+62
= 1 1 = 1 = 1 1 1 1 = 1 = 1 1 = = = 0 = 1 = = = 1 = = 1 1 = = =
–   Toga II 1.3.42767+28
−28		(−57)20.5 − 11.5
(+14−5=13)
64.1%
20.5 / 32
100.0%
+31
1 1 = 1 = 1 = = 0 = 1 1 0 1 = 0 1 = 1 = 0 1 = = 0 1 1 = = 1 = 1
–   Toga II 1.2.1a 32-bit2759+12
−12		(−65)25.5 − 16.5
(+16−7=19)
60.7%
25.5 / 42
100.0%
0
= = 1 1 0 1 0 1 0 1 0 0 = = = 1 = 1 = = = 1 = = 1 = 1 = = = 1 1 = = 1 1 1 = 0 = 0 1
–   Spike 1.2 Turin2745+7
−7		(−79)27 − 15
(+17−5=20)
64.3%
27.0 / 42
100.0%
+6
1 1 = = 1 = = 1 = = 1 1 = = 0 1 0 = = 1 1 = = = = 1 1 1 = 1 = 1 0 1 = = 0 = 1 1 0 =
–   Fruit 2.2.12744+13
−13		(−80)17.5 − 11.5
(+11−5=13)		60.3%
17.5 / 29
100.0%
−15
= = 1 1 1 1 = 0 0 1 = = = = 1 = = 1 1 1 = 1 0 1 = 0 0 = =
–   Fritz 92742+14
−14		(−82)34.5 − 25.5
(+25−16=19)
57.5%
34.5 / 60
100.0%
−32
1 = 0 0 0 0 = 0 = = 0 = 1 1 = 0 1 0 = = = 1 1 1 = = 1 1 0 0 1 1 1 = = 1 1 1 = 1 0 1 0 1 1 = = = = 0 1 1 = 1 0 1 1 1 0 0
–   Hiarcs 102740+16
−16		(−84)38 − 22
(+25−9=26)
63.3%
38.0 / 60
100.0%
−1
1 0 = 1 1 0 = = 0 = = = = = = 1 0 = 1 = 1 1 1 0 = 1 1 1 = 0 1 1 = 1 = = 1 = 1 1 1 0 = 0 1 1 = 1 = = = 0 = = 1 = 1 1 = 1
–   Toga II 1.1a 32-bit2731+16
−16		(−93)16.5 − 9.5
(+12−5=9)		63.5%
16.5 / 26
100.0%
−6
1 = 1 = 0 1 1 = = 1 0 1 1 0 = = = 1 = = 1 1 0 1 1 0
–   Shredder 92726+17
−17		(−98)17 − 12
(+14−9=6)		58.6%
17.0 / 29
100.0%
−34
1 = 1 0 1 1 0 1 = 0 1 0 1 0 1 = = 0 1 1 1 0 = 0 1 = 1 1 0
–   Hiarcs 10 Hypermodern2718+20
−20		(−106)17 − 12
(+10−5=14)		58.6%
17.0 / 29
100.0%
−52
0 = = = = 1 = 1 = 0 1 0 1 = = 1 1 0 1 = 1 = 1 1 = = 0 = =
–   Naum 2.0 32-bit2697+15
−15		(−127)21.5 − 10.5
(+17−6=9)
67.2%
21.5 / 32
100.0%
−10
1 0 1 = 1 0 1 = 1 0 = 1 1 1 = 1 = 0 1 1 1 1 = 0 1 0 = 1 1 1 = =
–   Naum 2.0 64-bit2696+23
−23		(−128)22 − 10
(+16−4=12)
68.8%
22.0 / 32
100.0%
−7
1 1 = = 0 = 0 = 1 = 1 1 1 1 0 = = 1 = 1 = 1 1 = = = 1 1 1 0 1 1
–   Spike 1.12689+15
−15		(−135)22 − 8
(+14−0=16)
73.3%
22.0 / 30
100.0%
+3
= = = 1 1 = 1 = = = = = 1 = = = 1 1 1 = = 1 1 1 1 = 1 1 1 =
–   Chess Tiger 20072681+12
−12		(−143)19.5 − 12.5
(+15−8=9)
60.9%
19.5 / 32
100.0%
−69
0 = 0 = 1 0 1 1 = 1 0 = 1 1 = 1 0 1 1 1 = = 0 = 0 = 0 1 1 1 1 1
–   Junior 92676+17
−17		(−148)24 − 6
(+20−2=8)
80.0%
24.0 / 30
100.0%
+68
= 1 1 1 1 = 1 = 1 = 1 1 = 1 1 1 = 1 0 1 1 1 1 1 0 1 1 = 1 =
–   Scorpio 1.92669+30
−30		(−155)17.5 − 6.5
(+15−4=5)		72.9%
17.5 / 24
100.0%
+14
1 = 1 1 1 = = 1 1 1 1 1 = = 0 1 0 0 1 1 0 1 1 1
–   SmarThink 1.00 32-bit2666+15
−15		(−158)22.5 − 6.5
(+18−2=9)		77.6%
22.5 / 29
100.0%
+35
1 1 1 1 1 1 1 1 = 1 1 = = = = 1 1 = = 1 = 1 0 1 1 = 1 0 1
–   Glaurung 1.2.1 64-bit2665+23
−23		(−159)32.5 − 9.5
(+27−4=11)
77.4%
32.5 / 42
100.0%
+41
1 1 1 1 1 1 = = = = 1 1 1 1 = 1 = 1 1 1 = 1 = 1 1 1 = = 0 1 0 1 1 1 1 0 1 1 = 1 1 0
–   Ktulu 7.52664+15
−15		(−160)17.5 − 9.5
(+12−4=11)		64.8%
17.5 / 27
100.0%
−68
1 1 1 1 1 = 0 = = = 1 1 = = 0 = = 1 0 1 1 1 = = 1 0 =
–   CM10th Xperience2661+13
−13		(−163)20 − 4
(+16−0=8)		83.3%
20.0 / 24
100.0%
+69
1 = 1 1 1 = = 1 = 1 1 1 1 1 1 = 1 = 1 = 1 = 1 1
–   Glaurung 1.2.1 32-bit2655+16
−16		(−169)27 − 5
(+23−1=8)
84.4%
27.0 / 32
100.0%
+89
1 1 1 1 = 1 0 1 = = 1 1 1 1 1 1 1 = = 1 1 1 = 1 = 1 1 = 1 1 1 1
–   Spike 1.0a2650+18
−19		(−174)22 − 7
(+17−2=10)		75.9%
22.0 / 29
100.0%
0
1 1 1 1 1 = 1 = = 1 1 1 1 0 = 1 = 1 = 1 = = = = 1 0 1 1 1
–   CM10th Magic II2644+16
−16		(−180)19 − 7
(+14−2=10)		73.1%
19.0 / 26
100.0%
−30
1 1 = = = = 0 1 1 1 = 1 = 1 1 1 1 = 1 0 1 = 1 1 = =
–   Scorpio 1.82641+20
−20		(−183)33 − 9
(+28−4=10)
78.6%
33.0 / 42
100.0%
+29
1 1 1 = 1 0 1 = 1 = 1 0 1 1 0 1 = 1 = 1 1 1 1 1 0 1 1 1 1 = 1 = 1 1 1 = = 1 1 = 1 1
–   Ktulu 7.12638+18
−18		(−186)21 − 9
(+17−5=8)
70.0%
21.0 / 30
100.0%
−38
0 1 1 = 1 = 1 = 1 1 1 = 1 0 0 1 1 = 1 = 1 1 1 1 0 1 = = 0 1
–   Slow Chess Blitz WV2.12637+12
−12		(−187)25.5 − 6.5
(+19−0=13)
79.7%
25.5 / 32
100.0%
+5
1 1 1 1 1 = 1 = = 1 = 1 1 1 1 1 1 1 = = = = = = 1 = = 1 1 1 1 =
–   Chess Tiger 152636+17
−17		(−188)23.5 − 6.5
(+18−1=11)
78.3%
23.5 / 30
100.0%
+1
1 = = = 1 1 1 1 = 1 1 1 1 1 = 0 = = = 1 = 1 1 1 1 1 1 1 = =
–   Gandalf 62635+11
−11		(−189)21.5 − 8.5
(+16−3=11)
71.7%
21.5 / 30
100.0%
−43
1 = 1 = 1 = 0 0 = 0 1 = 1 = 1 1 1 1 = 1 1 1 1 1 1 = 1 = = =
–   CM10th Default2631+15
−14		(−193)22.5 − 7.5
(+17−2=11)
75.0%
22.5 / 30
100.0%
−30
1 = 1 = 1 = 1 1 1 1 0 1 = 1 1 = 1 = = 1 1 = 1 1 1 1 0 = = =
–   Hiarcs 92628+20
−20		(−196)23 − 6
(+20−3=6)		79.3%
23.0 / 29
100.0%
+28
= 1 1 1 1 1 = 1 = 1 0 1 0 0 1 1 1 1 1 = = 1 1 1 1 1 = 1 1
–   WildCat 72628+14
−14		(−196)26.5 − 5.5
(+23−2=7)
82.8%
26.5 / 32
100.0%
+56
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
–   List 5.122618+18
−18		(−206)21 − 11
(+15−5=12)
65.6%
21.0 / 32
100.0%
−103
0 1 1 1 0 1 1 1 1 = 1 1 = = = = = = 1 0 = 1 = 1 = = 1 0 = 1 1 0
–   Zappa 1.1 64-bit2615+18
−18		(−209)23 − 9
(+18−4=10)
71.9%
23.0 / 32
100.0%
−58
1 0 1 = 1 1 = = = 1 1 1 0 = = = 1 1 1 1 = 0 = = 1 0 1 1 1 1 1 1
–   Pharaon 3.5.12614+13
−13		(−210)27 − 5
(+24−2=6)
84.4%
27.0 / 32
100.0%
+62
1 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
–   Naum 1.91 64-bit2610+15
−15		(−214)26.5 − 3.5
(+23−0=7)
88.3%
26.5 / 30
100.0%
+87
1 = 1 1 = 1 1 = 1 1 1 1 1 1 = = 1 1 1 1 1 1 1 1 1 = 1 1 1 =
–   Ruffian 1.0.52609+20
−20		(−215)25 − 7
(+19−1=12)
78.1%
25.0 / 32
100.0%
−32
1 = 1 1 1 = 1 = 1 1 1 = 1 1 1 1 1 = = 1 0 = 1 = 1 1 1 = 1 = = =
–   Chess Tiger 20042595+26
−26		(−229)18 − 7
(+15−4=6)		72.0%
18.0 / 25
100.0%
−70
0 1 0 1 = 1 1 1 1 = = = 1 0 = 1 1 1 = 1 0 1 1 1 1
1871 games: 837 wins, 336 losses, 698 draws (37.3%), score: 63.4%

Rating changes by day

Rating changes with played games

Created in 2005-2013 by CCRL team
Last games added on April 18, 2021