CCRL 40/15
Downloads and Statistics
March 6, 2021
Testing summary:
Total: 1'223'030 games
played by 2'799 programs

White wins: 420'040 (34.3%)
Black wins: 308'879 (25.3%)
Draws: 494'111 (40.4%)
White score: 54.5%

Engine Details

Options
Show each game results
Rybka 1.0 64-bit (2825+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
–   Rybka 1.2 64-bit2899+18
−18		(+74)10.5 − 21.5
(+3−14=15)
32.8%
10.5 / 32
0.0%
−31
0 0 0 1 0 = 0 = = 0 = = = 0 0 = = = 0 1 0 = = 0 0 = 0 = 0 = = 1
–   DiscoCheck 5.2 64-bit2899+18
−17		(+74)2.5 − 7.5
(+1−6=3)		25.0%
2.5 / 10
0.0%
−103
0 = 0 0 1 = 0 0 = 0
–   iCE 2.0 64-bit2892+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		(+64)1 − 7
(+1−7=0)		12.5%
1.0 / 8
0.0%
−325
0 0 0 0 0 0 1 0
–   Topple 0.7.1 64-bit2888+26
−25		(+63)4.5 − 3.5
(+3−2=3)		56.3%
4.5 / 8
0.0%
+105
0 1 = 0 1 = = 1
–   Arasan 18.2 64-bit2886+29
−29		(+61)4.5 − 5.5
(+3−4=3)		45.0%
4.5 / 10
0.0%
+19
1 = 0 0 1 = 1 0 0 =
–   Stash 23.0 64-bit2881+28
−28		(+56)3.5 − 4.5
(+2−3=3)		43.8%
3.5 / 8
0.0%
+7
1 = 0 = 0 0 1 =
–   Vajolet2 1.44 64-bit2876+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		(+47)7 − 9
(+4−6=6)		43.8%
7.0 / 16
0.0%
+9
= 0 0 1 0 = = 0 = 1 = 1 0 1 0 =
–   The Baron 3.44 64-bit2866+12
−12		(+41)4 − 4
(+2−2=4)		50.0%
4.0 / 8
0.0%
+41
= = 0 1 = 1 0 =
–   Vajolet2 1.45 64-bit2866+20
−20		(+41)7.5 − 2.5
(+6−1=3)		75.0%
7.5 / 10
0.0%
+212
1 1 = 1 1 = 0 1 1 =
–   Scorpio 2.7.9 64-bit2866+26
−25		(+41)5 − 5
(+4−4=2)		50.0%
5.0 / 10
0.2%
+35
0 = 0 = 1 0 1 1 1 0
–   Crafty 25.0 64-bit2863+19
−19		(+38)4.5 − 5.5
(+2−3=5)		45.0%
4.5 / 10
0.1%
+10
= = 0 = = 0 0 1 = 1
–   Arasan 18.0 64-bit2860+26
−26		(+35)3 − 7
(+2−6=2)		30.0%
3.0 / 10
0.9%
−112
0 = 0 1 = 0 0 1 0 0
–   Gaviota 1.0 64-bit2859+11
−11		(+34)4.5 − 5.5
(+2−3=5)		45.0%
4.5 / 10
0.0%
+6
1 1 = = = 0 = 0 0 =
–   Marvin 3.3.2 64-bit2858+21
−21		(+33)4.5 − 7.5
(+2−5=5)		37.5%
4.5 / 12
0.4%
−47
= = 1 = 0 0 = 0 0 0 1 =
–   Francesca MAD 0.27 64-bit2855+26
−26		(+30)2 − 4
(+1−3=2)		33.3%
2.0 / 6
2.0%
−82
= = 1 0 0 0
–   EXchess 7.92b 64-bit2854+22
−22		(+29)5 − 5
(+2−2=6)		50.0%
5.0 / 10
1.3%
+29
1 0 = = 1 = = = = 0
–   Tucano 7.06 64-bit2852+20
−20		(+27)10 − 10
(+4−4=12)		50.0%
10.0 / 20
1.2%
+27
0 = 0 1 = 1 = = = = = = = 0 = 1 0 = 1 =
–   Andscacs 0.70 64-bit2852+27
−27		(+27)5 − 5
(+2−2=6)		50.0%
5.0 / 10
3.8%
+23
= = 0 = = 1 0 = 1 =
–   Rodent 1.7 64-bit2850+19
−19		(+25)6 − 4
(+4−2=4)		60.0%
6.0 / 10
1.4%
+83
0 = 1 = 1 1 0 = 1 =
–   Atlas 3.80 64-bit2847+14
−14		(+22)6 − 4
(+4−2=4)		60.0%
6.0 / 10
1.1%
+84
= = 0 1 0 1 1 = = 1
–   Vajolet2 1.28 64-bit2845+22
−22		(+20)2.5 − 5.5
(+1−4=3)		31.3%
2.5 / 8
5.6%
−103
0 0 0 = = 1 0 =
–   Tornado 8.0 64-bit2842+13
−13		(+17)7 − 3
(+5−1=4)		70.0%
7.0 / 10
3.1%
+149
= 1 1 0 = 1 = = 1 1
–   Arasan 17.5 64-bit2840+25
−25		(+15)4.5 − 5.5
(+2−3=5)		45.0%
4.5 / 10
13.8%
−16
= 0 0 = 1 = = = 0 1
–   The Baron 3.41 64-bit2837+22
−22		(+12)4.5 − 5.5
(+2−3=5)		45.0%
4.5 / 10
17.2%
−15
0 = = 1 0 1 = 0 = =
–   The Baron 3.43 64-bit2837+24
−24		(+12)6 − 4
(+3−1=6)		60.0%
6.0 / 10
18.3%
+67
1 = 0 1 = = = = = 1
–   Asymptote 0.6.3 64-bit2836+24
−24		(+11)4 − 6
(+3−5=2)		40.0%
4.0 / 10
20.4%
−63
1 = = 1 0 0 1 0 0 0
–   Pedone 1.3 64-bit2835+23
−23		(+10)6 − 4
(+4−2=4)		60.0%
6.0 / 10
21.5%
+78
1 0 = 1 1 1 = = = 0
–   Counter 3.2 64-bit2834+19
−18		(+9)7 − 9
(+4−6=6)		43.8%
7.0 / 16
20.0%
−31
0 = 1 1 0 = = 1 1 = 0 0 = 0 = 0
–   Fizbo 1.2 64-bit2833+27
−27		(+8)3.5 − 6.5
(+1−4=5)		35.0%
3.5 / 10
30.1%
−78
= = 0 1 = 0 = 0 0 =
–   Winter 0.4a 64-bit2833+24
−24		(+8)4.5 − 7.5
(+2−5=5)		37.5%
4.5 / 12
26.3%
−68
= 1 = 0 0 = 1 0 0 0 = =
–   SmarThink 1.50 64-bit2830+24
−24		(+5)4.5 − 5.5
(+1−2=7)		45.0%
4.5 / 10
33.9%
−22
= = = 0 0 = = = 1 =
–   Scorpio 2.7.8 64-bit2829+27
−27		(+4)4 − 6
(+2−4=4)		40.0%
4.0 / 10
38.1%
−59
0 1 0 = = 0 = = 1 0
–   Texel 1.02 64-bit2827+28
−28		(+2)8 − 2
(+8−2=0)		80.0%
8.0 / 10
43.7%
+283
1 1 1 1 1 1 0 1 0 1
–   Pedone 1.2 64-bit2825+26
−26		(0)6 − 4
(+4−2=4)		60.0%
6.0 / 10
48.1%
+62
0 = 0 1 = 1 = = 1 1
–   Tucano 7.05 64-bit2824+29
−29		(−1)4 − 6
(+1−3=6)		40.0%
4.0 / 10
52.0%
−59
0 = 0 = = = = 1 0 =
–   chess22k 1.6 64-bit2823+28
−28		(−2)5 − 5
(+2−2=6)		50.0%
5.0 / 10
53.8%
−5
0 = = = = = 1 1 0 =
–   DisasterArea 1.542822+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
–   SmarThink 1.40 64-bit2821+32
−32		(−4)7.5 − 2.5
(+6−1=3)		75.0%
7.5 / 10
57.1%
+167
1 1 = 1 0 = 1 = 1 1
–   NirvanaChess 1.5 64-bit2821+29
−29		(−4)6.5 − 3.5
(+4−1=5)		65.0%
6.5 / 10
57.9%
+82
= = 1 1 0 1 = = 1 =
–   Tornado 6.0 64-bit2819+21
−21		(−6)5.5 − 4.5
(+5−4=1)		55.0%
5.5 / 10
65.2%
+31
1 1 1 1 0 0 1 = 0 0
–   Tornado 7.0 64-bit2816+19
−19		(−9)4.5 − 5.5
(+1−2=7)		45.0%
4.5 / 10
75.4%
−36
= 0 0 = = = = = 1 =
–   Topple 0.7.0 64-bit2814+27
−27		(−11)5.5 − 6.5
(+3−4=5)		45.8%
5.5 / 12
76.0%
−34
= 1 0 1 = 1 0 = 0 = = 0
–   Minic 1.09 64-bit2812+27
−27		(−13)9 − 5
(+7−3=4)		64.3%
9.0 / 14
79.2%
+91
= 1 = 0 1 1 0 1 1 0 = 1 = 1
–   NirvanaChess 1.7 64-bit2811+31
−31		(−14)4.5 − 3.5
(+4−3=1)		56.3%
4.5 / 8
78.0%
+30
1 1 0 1 0 = 0 1
–   Zurichess Luzern 64-bit2792+24
−24		(−33)9.5 − 6.5
(+7−4=5)		59.4%
9.5 / 16
98.9%
+31
0 1 = = = 1 1 1 1 0 0 1 = = 1 0
–   Arasan 17.1 64-bit2791+31
−31		(−34)4.5 − 5.5
(+1−2=7)		45.0%
4.5 / 10
97.2%
−61
0 = = = = 0 = = 1 =
–   Hiarcs 11.12790+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
−12		(−36)16.5 − 15.5
(+11−10=11)
51.6%
16.5 / 32
100.0%
−26
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		(−37)3 − 5
(+1−3=4)		37.5%
3.0 / 8
98.9%
−110
0 = 0 0 = = = 1
–   Bobcat 6.4b 64-bit2787+24
−24		(−38)3.5 − 2.5
(+2−1=3)		58.3%
3.5 / 6
99.6%
+8
= = 1 0 1 =
–   Rybka 1.0 32-bit2786+14
−14		(−39)13 − 14
(+3−4=20)		48.1%
13.0 / 27
100.0%
−50
= = 1 = = = 1 = 0 = = 0 = = = = = = = = 0 0 = = = 1 =
–   The Baron 3.29 64-bit2785+18
−18		(−40)5 − 5
(+2−2=6)		50.0%
5.0 / 10
100.0%
−40
= 1 0 = 1 = = 0 = =
–   Rodent 1.5 64-bit2784+21
−21		(−41)4.5 − 5.5
(+3−4=3)		45.0%
4.5 / 10
99.9%
−68
= 0 1 1 0 0 = 0 = 1
–   RuyDos 1.1.6 64-bit2782+17
−17		(−43)6.5 − 3.5
(+5−2=3)		65.0%
6.5 / 10
100.0%
+52
0 = 1 = 0 1 1 = 1 1
–   Crafty 24.0 64-bit2771+28
−28		(−54)3 − 3
(+2−2=2)		50.0%
3.0 / 6
100.0%
−46
= 1 = 0 0 1
–   Strelka 1.8 32-bit2769+19
−19		(−56)22.5 − 9.5
(+14−1=17)
70.3%
22.5 / 32
100.0%
+61
= 1 1 = 1 = 1 1 1 1 = 1 = 1 1 = = = 0 = 1 = = = 1 = = 1 1 = = =
–   Toga II 1.3.42767+28
−28		(−58)20.5 − 11.5
(+14−5=13)
64.1%
20.5 / 32
100.0%
+30
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		(−66)25.5 − 16.5
(+16−7=19)
60.7%
25.5 / 42
100.0%
−1
= = 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		(−80)27 − 15
(+17−5=20)
64.3%
27.0 / 42
100.0%
+5
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		(−81)17.5 − 11.5
(+11−5=13)		60.3%
17.5 / 29
100.0%
−16
= = 1 1 1 1 = 0 0 1 = = = = 1 = = 1 1 1 = 1 0 1 = 0 0 = =
–   Fritz 92742+14
−14		(−83)34.5 − 25.5
(+25−16=19)
57.5%
34.5 / 60
100.0%
−33
1 1 1 = = 1 1 1 = 1 0 1 0 1 1 = = = = 0 1 1 = 1 0 1 1 1 0 0 1 = 0 0 0 0 = 0 = = 0 = 1 1 = 0 1 0 = = = 1 1 1 = = 1 1 0 0
–   Hiarcs 102740+16
−16		(−85)38 − 22
(+25−9=26)
63.3%
38.0 / 60
100.0%
−2
1 1 = 1 = = 1 = 1 1 1 0 = 0 1 1 = 1 = = = 0 = = 1 = 1 1 = 1 1 0 = 1 1 0 = = 0 = = = = = = 1 0 = 1 = 1 1 1 0 = 1 1 1 = 0
–   Toga II 1.1a 32-bit2731+16
−16		(−94)16.5 − 9.5
(+12−5=9)		63.5%
16.5 / 26
100.0%
−7
1 = 1 = 0 1 1 = = 1 0 1 1 0 = = = 1 = = 1 1 0 1 1 0
–   Shredder 92726+17
−17		(−99)17 − 12
(+14−9=6)		58.6%
17.0 / 29
100.0%
−35
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		(−107)17 − 12
(+10−5=14)		58.6%
17.0 / 29
100.0%
−53
0 = = = = 1 = 1 = 0 1 0 1 = = 1 1 0 1 = 1 = 1 1 = = 0 = =
–   Naum 2.0 64-bit2697+23
−22		(−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
–   Naum 2.0 32-bit2697+15
−15		(−128)21.5 − 10.5
(+17−6=9)
67.2%
21.5 / 32
100.0%
−11
1 0 1 = 1 0 1 = 1 0 = 1 1 1 = 1 = 0 1 1 1 1 = 0 1 0 = 1 1 1 = =
–   Spike 1.12689+15
−15		(−136)22 − 8
(+14−0=16)
73.3%
22.0 / 30
100.0%
+2
= = = 1 1 = 1 = = = = = 1 = = = 1 1 1 = = 1 1 1 1 = 1 1 1 =
–   Chess Tiger 20072682+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 92677+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		(−156)17.5 − 6.5
(+15−4=5)		72.9%
17.5 / 24
100.0%
+13
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		(−159)22.5 − 6.5
(+18−2=9)		77.6%
22.5 / 29
100.0%
+34
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		(−160)32.5 − 9.5
(+27−4=11)
77.4%
32.5 / 42
100.0%
+40
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		(−161)17.5 − 9.5
(+12−4=11)		64.8%
17.5 / 27
100.0%
−69
1 1 1 1 1 = 0 = = = 1 1 = = 0 = = 1 0 1 1 1 = = 1 0 =
–   CM10th Xperience2661+13
−13		(−164)20 − 4
(+16−0=8)		83.3%
20.0 / 24
100.0%
+68
1 = 1 1 1 = = 1 = 1 1 1 1 1 1 = 1 = 1 = 1 = 1 1
–   Glaurung 1.2.1 32-bit2655+16
−17		(−170)27 − 5
(+23−1=8)
84.4%
27.0 / 32
100.0%
+88
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 1.0a2651+18
−18		(−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		(−181)19 − 7
(+14−2=10)		73.1%
19.0 / 26
100.0%
−31
1 1 = = = = 0 1 1 1 = 1 = 1 1 1 1 = 1 0 1 = 1 1 = =
–   Scorpio 1.82641+19
−20		(−184)33 − 9
(+28−4=10)
78.6%
33.0 / 42
100.0%
+28
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		(−187)21 − 9
(+17−5=8)
70.0%
21.0 / 30
100.0%
−39
0 1 1 = 1 = 1 = 1 1 1 = 1 0 0 1 1 = 1 = 1 1 1 1 0 1 = = 0 1
–   Chess Tiger 152637+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 = =
–   Slow Chess Blitz WV2.12637+11
−12		(−188)25.5 − 6.5
(+19−0=13)
79.7%
25.5 / 32
100.0%
+4
1 1 1 1 1 = 1 = = 1 = 1 1 1 1 1 1 1 = = = = = = 1 = = 1 1 1 1 =
–   Gandalf 62635+11
−11		(−190)21.5 − 8.5
(+16−3=11)
71.7%
21.5 / 30
100.0%
−44
1 = 1 = 1 = 0 0 = 0 1 = 1 = 1 1 1 1 = 1 1 1 1 1 1 = 1 = = =
–   CM10th Default2631+15
−15		(−194)22.5 − 7.5
(+17−2=11)
75.0%
22.5 / 30
100.0%
−31
1 = 1 = 1 = 1 1 1 1 0 1 = 1 1 = 1 = = 1 1 = 1 1 1 1 0 = = =
–   Hiarcs 92629+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		(−197)26.5 − 5.5
(+23−2=7)
82.8%
26.5 / 32
100.0%
+55
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		(−207)21 − 11
(+15−5=12)
65.6%
21.0 / 32
100.0%
−104
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		(−210)23 − 9
(+18−4=10)
71.9%
23.0 / 32
100.0%
−59
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
−12		(−211)27 − 5
(+24−2=6)
84.4%
27.0 / 32
100.0%
+61
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		(−215)26.5 − 3.5
(+23−0=7)
88.3%
26.5 / 30
100.0%
+86
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		(−216)25 − 7
(+19−1=12)
78.1%
25.0 / 32
100.0%
−33
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		(−230)18 − 7
(+15−4=6)		72.0%
18.0 / 25
100.0%
−71
1 = 1 1 1 1 = = = 1 0 = 1 1 1 = 1 0 1 1 1 1 0 1 0
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 March 6, 2021