CCRL 40/15
Downloads and Statistics
November 16, 2024
Testing summary:
Total: 1'967'497 games
played by 3'973 programs

White wins: 610'660 (31.0%)
Black wins: 425'811 (21.6%)
Draws: 931'026 (47.3%)
White score: 54.7%

Engine Details

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Rybka 2.3.2a 32-bit (2933+7
−7		)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 Combines Rybka 2.3.2 and 2.3.2a games - testing has confirmed the versions are indistinguishable regarding strength.
This is one of the 27 Rybka versions we tested: Compare them!
OpponentEloDiffResultsScoreLOSPerf
–   Houdini 3 32-bit3179+17
−17		(+246)5 − 27
(+0−22=10)
15.6%
5.0 / 32
0.0%
−9
–   Houdini 2.0c 32-bit3140+11
−11		(+207)11.5 − 48.5
(+2−39=19)
19.2%
11.5 / 60
0.0%
−22
–   Strelka 5.5 32-bit3127+11
−11		(+194)6.5 − 23.5
(+1−18=11)
21.7%
6.5 / 30
0.0%
−10
–   Houdini 1.5a 32-bit3124+9
−9		(+191)6.5 − 23.5
(+1−18=11)
21.7%
6.5 / 30
0.0%
−11
–   Strelka 5.1 32-bit3117+11
−11		(+184)5 − 25
(+0−20=10)
16.7%
5.0 / 30
0.0%
−60
–   Critter 1.4 32-bit3107+10
−10		(+174)5.5 − 24.5
(+1−20=9)
18.3%
5.5 / 30
0.0%
−62
–   Critter 1.6a 32-bit3106+13
−13		(+173)11.5 − 20.5
(+1−10=21)
35.9%
11.5 / 32
0.0%
+81
–   Critter 1.6 32-bit3105+15
−15		(+172)8 − 24
(+0−16=16)
25.0%
8.0 / 32
0.0%
+3
–   Critter 1.2 32-bit3096+11
−11		(+163)5 − 25
(+0−20=10)
16.7%
5.0 / 30
0.0%
−81
–   Stockfish 2.2.2 32-bit3086+11
−11		(+153)8 − 22
(+0−14=16)
26.7%
8.0 / 30
0.0%
−1
–   Komodo 5 32-bit3084+13
−13		(+151)12 − 20
(+2−10=20)
37.5%
12.0 / 32
0.0%
+70
–   Stockfish 2.3.1 32-bit3075+15
−15		(+142)10 − 22
(+2−14=16)
31.3%
10.0 / 32
0.0%
+16
–   Komodo 4 32-bit3063+13
−13		(+130)8 − 22
(+3−17=10)
26.7%
8.0 / 30
0.0%
−44
–   Vitruvius 1.11C 32-bit3062+12
−12		(+129)10.5 − 21.5
(+4−15=13)
32.8%
10.5 / 32
0.0%
+6
–   Stockfish 2.1.1 32-bit3058+12
−12		(+125)7.5 − 22.5
(+3−18=9)
25.0%
7.5 / 30
0.0%
−66
–   Komodo 3 32-bit3055+12
−12		(+122)9.5 − 20.5
(+3−14=13)
31.7%
9.5 / 30
0.0%
−7
–   IvanHoe 9.46h 32-bit3055+12
−12		(+122)8.5 − 21.5
(+1−14=15)
28.3%
8.5 / 30
0.0%
−24
–   Critter 1.01 32-bit3053+14
−14		(+120)6 − 24
(+1−19=10)
20.0%
6.0 / 30
0.0%
−100
–   DeepSaros 2.3j 32-bit3053+13
−13		(+120)11.5 − 19.5
(+5−13=13)
37.1%
11.5 / 31
0.0%
+28
–   Bouquet 1.6 32-bit3048+16
−16		(+115)8 − 22
(+1−15=14)
26.7%
8.0 / 30
0.0%
−43
–   Rybka 3 Human 64-bit3047+19
−19		(+114)4.5 − 13.5
(+0−9=9)		25.0%
4.5 / 18
0.0%
−53
–   RobboLito 0.21Q 32-bit3045+16
−16		(+112)10.5 − 19.5
(+1−10=19)
35.0%
10.5 / 30
0.0%
+12
–   Stockfish 2.0.1 32-bit3045+13
−13		(+112)6.5 − 23.5
(+2−19=9)
21.7%
6.5 / 30
0.0%
−100
–   Bouquet 1.5 32-bit3041+15
−15		(+108)10.5 − 21.5
(+3−14=15)
32.8%
10.5 / 32
0.0%
−10
–   Komodo 2.03 32-bit3040+13
−13		(+107)7.5 − 22.5
(+2−17=11)
25.0%
7.5 / 30
0.0%
−77
–   Stockfish 1.9.1 32-bit3038+13
−13		(+105)10 − 20
(+2−12=16)
33.3%
10.0 / 30
0.0%
−8
–   Sting SF 2 32-bit3033+15
−15		(+100)11.5 − 20.5
(+5−14=13)
35.9%
11.5 / 32
0.0%
−4
–   DeepSaros 3.0 32-bit3028+15
−15		(+95)12 − 20
(+4−12=16)
37.5%
12.0 / 32
0.0%
+7
–   Rybka 3 32-bit3027+9
−9		(+94)21.5 − 28.5
(+10−17=23)
43.0%
21.5 / 50
0.0%
+40
–   Critter 0.90 32-bit3022+11
−11		(+89)12 − 18
(+2−8=20)
40.0%
12.0 / 30
0.0%
+25
–   Stockfish 1.8 32-bit3020+13
−13		(+87)12.5 − 17.5
(+2−7=21)
41.7%
12.5 / 30
0.0%
+31
–   Stockfish 1.7.1 32-bit3013+12
−12		(+80)13 − 17
(+2−6=22)
43.3%
13.0 / 30
0.0%
+39
–   Gull II b2 32-bit3009+15
−15		(+76)11.5 − 20.5
(+4−13=15)
35.9%
11.5 / 32
0.0%
−21
–   Gull II 32-bit3004+16
−16		(+71)8 − 22
(+2−16=12)
26.7%
8.0 / 30
0.0%
−99
–   Naum 4.2 64-bit3000+8
−8		(+67)7 − 17
(+3−13=8)		29.2%
7.0 / 24
0.0%
−88
–   Stockfish 1.6.3 64-bit2994+16
−16		(+61)9.5 − 14.5
(+5−10=9)		39.6%
9.5 / 24
0.0%
−17
–   HIARCS 142985+8
−8		(+52)11.5 − 20.5
(+3−12=17)
35.9%
11.5 / 32
0.0%
−42
–   Fritz 132984+10
−10		(+51)12.5 − 17.5
(+2−7=21)
41.7%
12.5 / 30
0.0%
−1
–   Protector 1.5.0 32-bit2971+21
−21		(+38)14.5 − 15.5
(+7−8=15)
48.3%
14.5 / 30
0.0%
+25
–   Chiron 1.5 32-bit2962+13
−13		(+29)17 − 15
(+9−7=16)
53.1%
17.0 / 32
0.0%
+50
–   Naum 4 32-bit2955+11
−11		(+22)9 − 9
(+4−4=10)		50.0%
9.0 / 18
0.0%
+24
–   Chiron 1.1a 32-bit2953+12
−12		(+20)16 − 14
(+9−7=14)
53.3%
16.0 / 30
0.2%
+44
–   Hannibal 1.3 32-bit2952+15
−15		(+19)5.5 − 6.5
(+3−4=5)		45.8%
5.5 / 12
1.3%
−14
–   Shredder 12 32-bit2952+6
−6		(+19)9 − 9
(+6−6=6)		50.0%
9.0 / 18
0.0%
+19
–   Critter 0.80 32-bit2946+13
−13		(+13)17 − 13
(+8−4=18)
56.7%
17.0 / 30
3.9%
+56
–   Komodo 1.0 64-bit2942+12
−12		(+9)7 − 11
(+2−6=10)		38.9%
7.0 / 18
10.4%
−65
–   Komodo 1.3 32-bit2938+14
−14		(+5)18 − 12
(+11−5=14)
60.0%
18.0 / 30
27.0%
+73
–   Deep Junior 13 32-bit2936+14
−14		(+3)14.5 − 15.5
(+9−10=11)
48.3%
14.5 / 30
37.3%
−5
–   Spike 1.4 Leiden2935+6
−6		(+2)13.5 − 16.5
(+7−10=13)
45.0%
13.5 / 30
32.7%
−37
–   Deep Junior 13.3 32-bit2929+12
−12		(−4)18 − 14
(+12−8=12)
56.3%
18.0 / 32
73.0%
+47
–   Hannibal 1.2 32-bit2925+12
−12		(−8)15.5 − 14.5
(+8−7=15)
51.7%
15.5 / 30
89.4%
+2
–   Komodo 1.2 32-bit2916+12
−12		(−17)14.5 − 15.5
(+5−6=19)
48.3%
14.5 / 30
99.1%
−26
–   Gull 1.0a 32-bit2905+10
−10		(−28)14.5 − 15.5
(+7−8=15)
48.3%
14.5 / 30
100.0%
−38
–   Rybka 2.2 32-bit2905+13
−13		(−28)11 − 9
(+4−2=14)		55.0%
11.0 / 20
100.0%
+2
–   Quazar 0.4 32-bit2897+10
−10		(−36)19 − 11
(+13−5=12)
63.3%
19.0 / 30
100.0%
+64
–   Protector 1.4.0 32-bit2897+9
−9		(−36)16.5 − 13.5
(+10−7=13)
55.0%
16.5 / 30
100.0%
+1
–   Critter 0.70 32-bit2897+17
−17		(−36)19 − 11
(+12−4=14)
63.3%
19.0 / 30
100.0%
+55
–   Gull 1.2 32-bit2896+10
−10		(−37)19.5 − 10.5
(+11−2=17)
65.0%
19.5 / 30
100.0%
+64
–   Gull 1.1 32-bit2893+15
−15		(−40)14.5 − 15.5
(+5−6=19)
48.3%
14.5 / 30
100.0%
−47
–   Gull 0.12a 32-bit2888+18
−18		(−45)16.5 − 13.5
(+11−8=11)
55.0%
16.5 / 30
100.0%
−5
–   Hannibal 1.1 32-bit2887+11
−11		(−46)17 − 13
(+7−3=20)
56.7%
17.0 / 30
100.0%
−1
–   Komodo 1.0 32-bit2885+14
−14		(−48)17 − 13
(+8−4=18)
56.7%
17.0 / 30
100.0%
−4
–   Spark 1.0 32-bit2880+9
−9		(−53)17 − 13
(+9−5=16)
56.7%
17.0 / 30
100.0%
−6
–   Stockfish 1.5.1 32-bit2879+12
−12		(−54)17.5 − 12.5
(+12−7=11)
58.3%
17.5 / 30
100.0%
+9
–   Naum 3.1 32-bit2876+13
−13		(−57)19.5 − 13.5
(+7−1=25)
59.1%
19.5 / 33
100.0%
−1
–   Thinker 5.4c Inert 64-bit2875+12
−12		(−58)12 − 6
(+6−0=12)		66.7%
12.0 / 18
100.0%
+46
–   Thinker 5.4d Inert 32-bit2871+8
−8		(−62)21.5 − 8.5
(+14−1=15)
71.7%
21.5 / 30
100.0%
+84
–   Doch 1.3.4 32-bit2870+18
−18		(−63)17.5 − 12.5
(+9−4=17)
58.3%
17.5 / 30
100.0%
−5
–   Naum 3 32-bit2869+14
−14		(−64)21.5 − 12.5
(+12−3=19)
63.2%
21.5 / 34
100.0%
+24
–   Fritz 112868+9
−9		(−65)32.5 − 17.5
(+19−4=27)
65.0%
32.5 / 50
100.0%
+38
–   Zappa Mexico II 64-bit2867+8
−8		(−66)9 − 9
(+7−7=4)		50.0%
9.0 / 18
100.0%
−66
–   Thinker 5.4c Inert 32-bit2864+11
−11		(−69)16.5 − 13.5
(+8−5=17)
55.0%
16.5 / 30
100.0%
−36
–   Gull 0.11a 32-bit2862+18
−18		(−71)18 − 12
(+6−0=24)
60.0%
18.0 / 30
100.0%
−13
–   Booot 5.1.02860+8
−8		(−73)17 − 13
(+9−5=16)
56.7%
17.0 / 30
100.0%
−26
–   Shredder 112847+10
−10		(−86)36.5 − 18.5
(+25−7=23)
66.4%
36.5 / 55
100.0%
+33
–   Stockfish 1.4 32-bit2845+14
−14		(−88)18.5 − 11.5
(+13−6=11)
61.7%
18.5 / 30
100.0%
0
–   Critter 0.60 32-bit2845+20
−20		(−88)21.5 − 8.5
(+15−2=13)
71.7%
21.5 / 30
100.0%
+63
–   Protector 1.3.5 32-bit2841+12
−12		(−92)20.5 − 9.5
(+14−3=13)
68.3%
20.5 / 30
100.0%
+36
–   Toga II 1.4.1SE2839+10
−10		(−94)23 − 17
(+12−6=22)
57.5%
23.0 / 40
100.0%
−41
–   Grapefruit 1.0 32-bit2838+8
−8		(−95)20 − 10
(+10−0=20)
66.7%
20.0 / 30
100.0%
+7
–   Protector 1.3.4 32-bit2838+13
−13		(−95)20 − 9
(+14−3=12)		69.0%
20.0 / 29
100.0%
+42
–   Cyclone xTreme2837+10
−10		(−96)17 − 13
(+7−3=20)
56.7%
17.0 / 30
100.0%
−55
–   Booot 5.02836+13
−13		(−97)19 − 11
(+13−5=12)
63.3%
19.0 / 30
100.0%
+4
–   Toga II 1.4.1SE62834+20
−20		(−99)21.5 − 11.5
(+13−3=17)
65.2%
21.5 / 33
100.0%
+6
–   Spark 0.4 32-bit2834+14
−14		(−99)22 − 8
(+14−0=16)
73.3%
22.0 / 30
100.0%
+54
–   Cyclone xTreme Rage2832+22
−22		(−101)20 − 12
(+13−5=14)
62.5%
20.0 / 32
100.0%
−12
–   Toga II 3.1.2SE2827+15
−15		(−106)20.5 − 11.5
(+12−3=17)
64.1%
20.5 / 32
100.0%
−12
–   Deep Sjeng 3.0 32-bit2827+18
−18		(−106)24 − 16
(+12−4=24)
60.0%
24.0 / 40
100.0%
−38
–   Hiarcs 12 Sharpen PV On2824+12
−12		(−109)25 − 9
(+20−4=10)
73.5%
25.0 / 34
100.0%
+69
–   Zappa Mexico II 32-bit2820+10
−10		(−113)21.5 − 12.5
(+16−7=11)
63.2%
21.5 / 34
100.0%
−14
–   Hiarcs 122820+12
−12		(−113)17.5 − 12.5
(+8−3=19)
58.3%
17.5 / 30
100.0%
−57
–   Zap!Chess Zanzibar 64-bit2816+23
−23		(−117)19.5 − 10.5
(+12−3=15)
65.0%
19.5 / 30
100.0%
−12
–   Toga II 1.4 beta5c2814+20
−20		(−119)3.5 − 0.5
(+3−0=1)		87.5%
3.5 / 4
100.0%
+170
–   Protector 1.3.1b 32-bit2812+20
−20		(−121)21.5 − 8.5
(+15−2=13)
71.7%
21.5 / 30
100.0%
+32
–   Spark 0.3a 32-bit2810+14
−14		(−123)19.5 − 11.5
(+12−4=15)
62.9%
19.5 / 31
100.0%
−31
–   Hannibal 1.0a 32-bit2810+10
−10		(−123)20.5 − 9.5
(+15−4=11)
68.3%
20.5 / 30
100.0%
+14
–   Spark 0.3 32-bit2808+14
−14		(−125)21.5 − 10.5
(+14−3=15)
67.2%
21.5 / 32
100.0%
−5
–   Hiarcs Paderborn 20072808+14
−14		(−125)20.5 − 9.5
(+15−4=11)
68.3%
20.5 / 30
100.0%
+8
–   Doch 09.980 32-bit2807+16
−16		(−126)19.5 − 10.5
(+11−2=17)
65.0%
19.5 / 30
100.0%
−27
–   Naum 2.2 32-bit2804+13
−13		(−129)33 − 12
(+23−2=20)
73.3%
33.0 / 45
100.0%
+33
–   Zappa Mexico 32-bit2801+14
−14		(−132)22.5 − 10.5
(+15−3=15)
68.2%
22.5 / 33
100.0%
−4
–   Hiarcs 11.12800+13
−13		(−133)31 − 9
(+24−2=14)
77.5%
31.0 / 40
100.0%
+69
–   Toga II 1.3.12798+10
−10		(−135)44.5 − 18.5
(+32−6=25)
70.6%
44.5 / 63
100.0%
+12
–   Fruit 2.3.12794+12
−12		(−139)20.5 − 5.5
(+17−2=7)		78.8%
20.5 / 26
100.0%
+80
–   Zap!Chess Zanzibar 32-bit2792+16
−16		(−141)23 − 7
(+17−1=12)
76.7%
23.0 / 30
100.0%
+47
–   MinkoChess 1.2 32-bit2788+12
−12		(−145)19.5 − 10.5
(+12−3=15)
65.0%
19.5 / 30
100.0%
−40
–   Fritz 102788+13
−13		(−145)16.5 − 7.5
(+12−3=9)		68.8%
16.5 / 24
100.0%
−8
–   Bright 0.5c2786+11
−11		(−147)22 − 8
(+17−3=10)
73.3%
22.0 / 30
100.0%
+26
–   Hiarcs 112785+21
−21		(−148)8 − 2
(+6−0=4)		80.0%
8.0 / 10
100.0%
+62
–   Bright 0.4a2784+8
−8		(−149)22 − 8
(+16−2=12)
73.3%
22.0 / 30
100.0%
+15
–   Fruit 05/11/032781+18
−18		(−152)25 − 6
(+19−0=12)
80.6%
25.0 / 31
100.0%
+63
–   Loop 13.6 (Loop 2007)2780+8
−8		(−153)47 − 16
(+34−3=26)
74.6%
47.0 / 63
100.0%
+23
–   Shredder 102780+11
−11		(−153)28 − 6
(+24−2=8)
82.4%
28.0 / 34
100.0%
+101
–   Hiarcs 11.22778+16
−16		(−155)17 − 9
(+12−4=10)		65.4%
17.0 / 26
100.0%
−42
–   Strelka 1.8 32-bit2776+16
−16		(−157)3.5 − 1.5
(+2−0=3)		70.0%
3.5 / 5
100.0%
−33
–   Glaurung 2.1 32-bit2775+15
−15		(−158)24.5 − 5.5
(+20−1=9)
81.7%
24.5 / 30
100.0%
+79
–   Toga II 1.3.42769+23
−23		(−164)25.5 − 8.5
(+18−1=15)
75.0%
25.5 / 34
100.0%
+13
–   Toga II 1.2.1a 32-bit2766+10
−10		(−167)13.5 − 6.5
(+10−3=7)		67.5%
13.5 / 20
100.0%
−35
–   Strelka 1.0b 32-bit2755+23
−23		(−178)17.5 − 2.5
(+15−0=5)		87.5%
17.5 / 20
100.0%
+113
–   Deep Sjeng 2.72755+13
−13		(−178)24 − 9
(+20−5=8)
72.7%
24.0 / 33
100.0%
0
–   Spike 1.2 Turin2750+6
−6		(−183)24.5 − 15.5
(+16−7=17)
61.3%
24.5 / 40
100.0%
−105
–   Junior 102750+11
−11		(−183)28 − 5
(+25−2=6)
84.8%
28.0 / 33
100.0%
+103
–   Fruit 2.2.12749+11
−11		(−184)15.5 − 4.5
(+12−1=7)		77.5%
15.5 / 20
100.0%
+17
–   Naum 2.1 32-bit2747+17
−17		(−186)27 − 10
(+21−4=12)
73.0%
27.0 / 37
100.0%
−9
–   Twisted Logic 20100131x 32-bit2742+15
−15		(−191)25.5 − 4.5
(+21−0=9)
85.0%
25.5 / 30
100.0%
+70
–   Glaurung 2.0.1 32-bit2742+14
−14		(−191)24.5 − 7.5
(+17−0=15)
76.6%
24.5 / 32
100.0%
−10
–   Jonny 4.002734+8
−8		(−199)18.5 − 11.5
(+10−3=17)
61.7%
18.5 / 30
100.0%
−122
–   Bright 0.3a2733+16
−16		(−200)22 − 7
(+17−2=10)		75.9%
22.0 / 29
100.0%
−9
–   Twisted Logic 20090922 32-bit2732+16
−16		(−201)23 − 7
(+17−1=12)
76.7%
23.0 / 30
100.0%
−12
–   Bison 9.11 32-bit2730+12
−12		(−203)23 − 7
(+16−0=14)
76.7%
23.0 / 30
100.0%
−22
–   Twisted Logic 200806202725+14
−14		(−208)22.5 − 7.5
(+17−2=11)
75.0%
22.5 / 30
100.0%
−26
–   Junior 10.12722+22
−22		(−211)13.5 − 6.5
(+8−1=11)		67.5%
13.5 / 20
100.0%
−95
–   Ktulu 82709+7
−7		(−224)32 − 10
(+25−3=14)
76.2%
32.0 / 42
100.0%
−32
–   Chess Tiger 2007.12703+8
−8		(−230)25.5 − 6.5
(+20−1=11)
79.7%
25.5 / 32
100.0%
−13
–   Naum 2.0 32-bit2696+13
−13		(−237)25 − 5
(+20−0=10)
83.3%
25.0 / 30
100.0%
+6
–   Glaurung 2 epsilon/5 32-bit2694+24
−24		(−239)18.5 − 1.5
(+17−0=3)		92.5%
18.5 / 20
100.0%
+129
–   Frenzee Feb08 32-bit2692+11
−11		(−241)23 − 7
(+18−2=10)
76.7%
23.0 / 30
100.0%
−44
–   Booot 4.15.02692+11
−11		(−241)24.5 − 5.5
(+20−1=9)
81.7%
24.5 / 30
100.0%
−3
–   Delfi 5.42688+10
−10		(−245)22.5 − 7.5
(+18−3=9)
75.0%
22.5 / 30
100.0%
−55
–   Crafty 23.1 32-bit2683+16
−16		(−250)25.5 − 4.5
(+21−0=9)
85.0%
25.5 / 30
100.0%
+12
–   Chess Tiger 20072680+11
−11		(−253)25 − 7
(+19−1=12)
78.1%
25.0 / 32
100.0%
−49
–   Chessmaster 112663+10
−10		(−270)1 − 1
(+1−1=0)		50.0%
1.0 / 2
100.0%
−269
–   Movei 00.8.438 (10 10 10)2662+9
−9		(−271)27 − 5
(+22−0=10)
84.4%
27.0 / 32
100.0%
−15
–   CM10th Xperience2659+11
−11		(−274)26.5 − 3.5
(+24−1=5)
88.3%
26.5 / 30
100.0%
+46
–   Alaric 7072654+9
−9		(−279)22.5 − 3.5
(+20−1=5)		86.5%
22.5 / 26
100.0%
+20
–   CM10th Paralyse2654+12
−12		(−279)25 − 6
(+19−0=12)
80.6%
25.0 / 31
100.0%
−60
–   Scorpio 2.0 32-bit2652+14
−14		(−281)2 − 0
(+2−0=0)		100.0%
2.0 / 2
100.0%
+INF
–   Scorpio 1.842650+24
−24		(−283)8.5 − 1.5
(+8−1=1)		85.0%
8.5 / 10
100.0%
+29
–   Delfi 5.12620+22
−22		(−313)16 − 4
(+12−0=8)		80.0%
16.0 / 20
100.0%
−101
–   Alaric 7042619+25
−25		(−314)17 − 3
(+14−0=6)		85.0%
17.0 / 20
100.0%
−52
4465 games: 1581 wins, 915 losses, 1969 draws (44.1%), score: 57.5%

Rating changes by day

Rating changes with played games

Created in 2005-2013 by CCRL team
Last games added on November 16, 2024