CCRL 40/15
Downloads and Statistics
May 8, 2021
Testing summary:
Total: 1'242'291 games
played by 2'843 programs

White wins: 425'658 (34.3%)
Black wins: 312'703 (25.2%)
Draws: 503'930 (40.6%)
White score: 54.5%

Engine Details

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Rybka 2.3.2a 32-bit (2911+9
−9
)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 26 Rybka versions we tested: Compare them!
OpponentEloDiffResultsScoreLOSPerf
–   Houdini 3 32-bit3133+20
−20
(+222)5 − 27
(+0−22=10)
15.6%
5.0 / 32
0.0%
−24
–   Houdini 2.0c 32-bit3100+14
−13
(+189)11.5 − 48.5
(+2−39=19)
19.2%
11.5 / 60
0.0%
−27
–   Houdini 1.5a 32-bit3087+13
−12
(+176)6.5 − 23.5
(+1−18=11)
21.7%
6.5 / 30
0.0%
−11
–   Strelka 5.5 32-bit3085+15
−14
(+174)6.5 − 23.5
(+1−18=11)
21.7%
6.5 / 30
0.0%
−16
–   Strelka 5.1 32-bit3079+15
−15
(+168)5 − 25
(+0−20=10)
16.7%
5.0 / 30
0.0%
−66
–   Critter 1.4 32-bit3070+13
−13
(+159)5.5 − 24.5
(+1−20=9)
18.3%
5.5 / 30
0.0%
−66
–   Critter 1.6 32-bit3066+19
−19
(+155)8 − 24
(+0−16=16)
25.0%
8.0 / 32
0.0%
+1
–   Critter 1.6a 32-bit3066+16
−16
(+155)11.5 − 20.5
(+1−10=21)
35.9%
11.5 / 32
0.0%
+75
–   Critter 1.2 32-bit3058+14
−14
(+147)5 − 25
(+0−20=10)
16.7%
5.0 / 30
0.0%
−86
–   Stockfish 2.2.2 32-bit3048+14
−14
(+137)8 − 22
(+0−14=16)
26.7%
8.0 / 30
0.0%
0
–   Komodo 5 32-bit3045+16
−16
(+134)12 − 20
(+2−10=20)
37.5%
12.0 / 32
0.0%
+65
–   Stockfish 2.3.1 32-bit3038+17
−17
(+127)10 − 22
(+2−14=16)
31.3%
10.0 / 32
0.0%
+16
–   Komodo 4 32-bit3031+16
−16
(+120)8 − 22
(+3−17=10)
26.7%
8.0 / 30
0.0%
−39
–   Vitruvius 1.11C 32-bit3028+14
−15
(+117)10.5 − 21.5
(+4−15=13)
32.8%
10.5 / 32
0.0%
+7
–   Stockfish 2.1.1 32-bit3025+15
−15
(+114)7.5 − 22.5
(+3−18=9)
25.0%
7.5 / 30
0.0%
−62
–   IvanHoe 9.46h 32-bit3021+13
−14
(+110)8.5 − 21.5
(+1−14=15)
28.3%
8.5 / 30
0.0%
−21
–   Komodo 3 32-bit3021+14
−14
(+110)9.5 − 20.5
(+3−14=13)
31.7%
9.5 / 30
0.0%
−5
–   DeepSaros 2.3j 32-bit3019+15
−15
(+108)11.5 − 19.5
(+5−13=13)
37.1%
11.5 / 31
0.0%
+28
–   Critter 1.01 32-bit3018+18
−18
(+107)6 − 24
(+1−19=10)
20.0%
6.0 / 30
0.0%
−101
–   Bouquet 1.6 32-bit3015+18
−18
(+104)8 − 22
(+1−15=14)
26.7%
8.0 / 30
0.0%
−37
–   Rybka 3 Human 64-bit3014+25
−25
(+103)4.5 − 13.5
(+0−9=9)
25.0%
4.5 / 18
0.0%
−47
–   RobboLito 0.21Q 32-bit3011+18
−18
(+100)10.5 − 19.5
(+1−10=19)
35.0%
10.5 / 30
0.0%
+13
–   Stockfish 2.0.1 32-bit3011+16
−16
(+100)6.5 − 23.5
(+2−19=9)
21.7%
6.5 / 30
0.0%
−99
–   Bouquet 1.5 32-bit3008+17
−18
(+97)10.5 − 21.5
(+3−14=15)
32.8%
10.5 / 32
0.0%
−6
–   Komodo 2.03 32-bit3006+16
−16
(+95)7.5 − 22.5
(+2−17=11)
25.0%
7.5 / 30
0.0%
−72
–   Sting SF 2 32-bit3001+17
−17
(+90)11.5 − 20.5
(+5−14=13)
35.9%
11.5 / 32
0.0%
0
–   Stockfish 1.9.1 32-bit3000+16
−15
(+89)10 − 20
(+2−12=16)
33.3%
10.0 / 30
0.0%
−10
–   DeepSaros 3.0 32-bit2997+18
−18
(+86)12 − 20
(+4−12=16)
37.5%
12.0 / 32
0.0%
+9
–   Rybka 3 32-bit2994+12
−12
(+83)21.5 − 28.5
(+10−17=23)
43.0%
21.5 / 50
0.0%
+37
–   Critter 0.90 32-bit2988+15
−15
(+77)12 − 18
(+2−8=20)
40.0%
12.0 / 30
0.0%
+23
–   Stockfish 1.8 32-bit2988+17
−16
(+77)12.5 − 17.5
(+2−7=21)
41.7%
12.5 / 30
0.0%
+29
–   Gull II b2 32-bit2980+18
−18
(+69)11.5 − 20.5
(+4−13=15)
35.9%
11.5 / 32
0.0%
−15
–   Gull II 32-bit2976+18
−18
(+65)8 − 22
(+2−16=12)
26.7%
8.0 / 30
0.0%
−90
–   Stockfish 1.7.1 32-bit2975+16
−16
(+64)13 − 17
(+2−6=22)
43.3%
13.0 / 30
0.0%
+29
–   Naum 4.2 64-bit2974+9
−9
(+63)7 − 17
(+3−13=8)
29.2%
7.0 / 24
0.0%
−79
–   Stockfish 1.6.3 64-bit2964+20
−20
(+53)9.5 − 14.5
(+5−10=9)
39.6%
9.5 / 24
0.0%
−13
–   Hiarcs 142959+10
−10
(+48)11.5 − 20.5
(+3−12=17)
35.9%
11.5 / 32
0.0%
−33
–   Fritz 132958+11
−11
(+47)12.5 − 17.5
(+2−7=21)
41.7%
12.5 / 30
0.0%
+2
–   Protector 1.5.0 32-bit2946+25
−25
(+35)14.5 − 15.5
(+7−8=15)
48.3%
14.5 / 30
0.5%
+24
–   Chiron 1.5 32-bit2938+15
−16
(+27)17 − 15
(+9−7=16)
53.1%
17.0 / 32
0.1%
+45
–   Naum 4 32-bit2929+13
−13
(+18)9 − 9
(+4−4=10)
50.0%
9.0 / 18
1.2%
+20
–   Chiron 1.1a 32-bit2929+15
−14
(+18)16 − 14
(+9−7=14)
53.3%
16.0 / 30
1.4%
+38
–   Hannibal 1.3 32-bit2928+17
−17
(+17)5.5 − 6.5
(+3−4=5)
45.8%
5.5 / 12
4.0%
−10
–   Shredder 12 32-bit2928+7
−7
(+17)9 − 9
(+6−6=6)
50.0%
9.0 / 18
0.1%
+17
–   Critter 0.80 32-bit2923+15
−15
(+12)17 − 13
(+8−4=18)
56.7%
17.0 / 30
8.0%
+48
–   Komodo 1.0 64-bit2920+14
−14
(+9)7 − 11
(+2−6=10)
38.9%
7.0 / 18
14.4%
−56
–   Komodo 1.3 32-bit2916+16
−16
(+5)18 − 12
(+11−5=14)
60.0%
18.0 / 30
30.6%
+64
–   Deep Junior 13 32-bit2914+17
−18
(+3)14.5 − 15.5
(+9−10=11)
48.3%
14.5 / 30
36.4%
−4
–   Spike 1.4 Leiden2913+8
−8
(+2)13.5 − 16.5
(+7−10=13)
45.0%
13.5 / 30
35.2%
−31
–   Deep Junior 13.3 32-bit2907+15
−14
(−4)18 − 14
(+12−8=12)
56.3%
18.0 / 32
66.3%
+39
–   Hannibal 1.2 32-bit2904+14
−14
(−7)15.5 − 14.5
(+8−7=15)
51.7%
15.5 / 30
80.8%
+2
–   Komodo 1.2 32-bit2895+14
−14
(−16)14.5 − 15.5
(+5−6=19)
48.3%
14.5 / 30
97.2%
−24
–   Gull 1.0a 32-bit2885+12
−12
(−26)14.5 − 15.5
(+7−8=15)
48.3%
14.5 / 30
100.0%
−35
–   Rybka 2.2 32-bit2884+16
−16
(−27)11 − 9
(+4−2=14)
55.0%
11.0 / 20
99.8%
−1
–   Quazar 0.4 32-bit2878+12
−12
(−33)19 − 11
(+13−5=12)
63.3%
19.0 / 30
100.0%
+55
–   Protector 1.4.0 32-bit2877+11
−11
(−34)16.5 − 13.5
(+10−7=13)
55.0%
16.5 / 30
100.0%
−2
–   Critter 0.70 32-bit2876+19
−19
(−35)19 − 11
(+12−4=14)
63.3%
19.0 / 30
99.9%
+44
–   Gull 1.2 32-bit2875+12
−12
(−36)19.5 − 10.5
(+11−2=17)
65.0%
19.5 / 30
100.0%
+51
–   Gull 1.1 32-bit2875+17
−17
(−36)14.5 − 15.5
(+5−6=19)
48.3%
14.5 / 30
100.0%
−41
–   Gull 0.12a 32-bit2869+21
−21
(−42)16.5 − 13.5
(+11−8=11)
55.0%
16.5 / 30
100.0%
−8
–   Hannibal 1.1 32-bit2867+13
−13
(−44)17 − 13
(+7−3=20)
56.7%
17.0 / 30
100.0%
−6
–   Komodo 1.0 32-bit2867+16
−16
(−44)17 − 13
(+8−4=18)
56.7%
17.0 / 30
100.0%
−7
–   Spark 1.0 32-bit2863+11
−11
(−48)17 − 13
(+9−5=16)
56.7%
17.0 / 30
100.0%
−8
–   Stockfish 1.5.1 32-bit2862+15
−15
(−49)17.5 − 12.5
(+12−7=11)
58.3%
17.5 / 30
100.0%
+5
–   Thinker 5.4c Inert 64-bit2858+14
−14
(−53)12 − 6
(+6−0=12)
66.7%
12.0 / 18
100.0%
+37
–   Naum 3.1 32-bit2856+16
−15
(−55)19.5 − 13.5
(+7−1=25)
59.1%
19.5 / 33
100.0%
−7
–   Thinker 5.4d Inert 32-bit2855+10
−10
(−56)21.5 − 8.5
(+14−1=15)
71.7%
21.5 / 30
100.0%
+73
–   Doch 1.3.4 32-bit2854+22
−22
(−57)17.5 − 12.5
(+9−4=17)
58.3%
17.5 / 30
100.0%
−7
–   Zappa Mexico II 64-bit2852+10
−10
(−59)9 − 9
(+7−7=4)
50.0%
9.0 / 18
100.0%
−59
–   Fritz 112851+10
−10
(−60)32.5 − 17.5
(+19−4=27)
65.0%
32.5 / 50
100.0%
+29
–   Naum 3 32-bit2850+17
−17
(−61)21.5 − 12.5
(+12−3=19)
63.2%
21.5 / 34
100.0%
+15
–   Thinker 5.4c Inert 32-bit2848+13
−13
(−63)16.5 − 13.5
(+8−5=17)
55.0%
16.5 / 30
100.0%
−35
–   Gull 0.11a 32-bit2846+21
−21
(−65)18 − 12
(+6−0=24)
60.0%
18.0 / 30
100.0%
−16
–   Booot 5.1.02843+10
−10
(−68)17 − 13
(+9−5=16)
56.7%
17.0 / 30
100.0%
−29
–   Shredder 112831+12
−12
(−80)36.5 − 18.5
(+25−7=23)
66.4%
36.5 / 55
100.0%
+25
–   Critter 0.60 32-bit2829+23
−23
(−82)21.5 − 8.5
(+15−2=13)
71.7%
21.5 / 30
100.0%
+52
–   Stockfish 1.4 32-bit2828+16
−16
(−83)18.5 − 11.5
(+13−6=11)
61.7%
18.5 / 30
100.0%
−7
–   Protector 1.3.5 32-bit2827+15
−15
(−84)20.5 − 9.5
(+14−3=13)
68.3%
20.5 / 30
100.0%
+30
–   Grapefruit 1.0 32-bit2825+9
−9
(−86)20 − 10
(+10−0=20)
66.7%
20.0 / 30
100.0%
+2
–   Toga II 1.4.1SE2825+12
−12
(−86)23 − 17
(+12−6=22)
57.5%
23.0 / 40
100.0%
−41
–   Protector 1.3.4 32-bit2823+15
−15
(−88)20 − 9
(+14−3=12)
69.0%
20.0 / 29
100.0%
+33
–   Booot 5.02823+15
−15
(−88)19 − 11
(+13−5=12)
63.3%
19.0 / 30
100.0%
−1
–   Cyclone xTreme2822+13
−13
(−89)17 − 13
(+7−3=20)
56.7%
17.0 / 30
100.0%
−54
–   Spark 0.4 32-bit2820+16
−16
(−91)22 − 8
(+14−0=16)
73.3%
22.0 / 30
100.0%
+46
–   Toga II 1.4.1SE62819+23
−23
(−92)21.5 − 11.5
(+13−3=17)
65.2%
21.5 / 33
100.0%
−1
–   Cyclone xTreme Rage2819+25
−25
(−92)20 − 12
(+13−5=14)
62.5%
20.0 / 32
100.0%
−15
–   Toga II 3.1.2SE2813+17
−17
(−98)20.5 − 11.5
(+12−3=17)
64.1%
20.5 / 32
100.0%
−17
–   Deep Sjeng 3.0 32-bit2812+21
−21
(−99)24 − 16
(+12−4=24)
60.0%
24.0 / 40
100.0%
−41
–   Hiarcs 12 Sharpen PV On2812+14
−13
(−99)25 − 9
(+20−4=10)
73.5%
25.0 / 34
100.0%
+66
–   Zappa Mexico II 32-bit2808+12
−12
(−103)21.5 − 12.5
(+16−7=11)
63.2%
21.5 / 34
100.0%
−16
–   Hiarcs 122807+14
−14
(−104)17.5 − 12.5
(+8−3=19)
58.3%
17.5 / 30
100.0%
−56
–   Zap!Chess Zanzibar 64-bit2802+26
−26
(−109)19.5 − 10.5
(+12−3=15)
65.0%
19.5 / 30
100.0%
−19
–   Toga II 1.4 beta5c2801+23
−23
(−110)3.5 − 0.5
(+3−0=1)
87.5%
3.5 / 4
100.0%
+173
–   Protector 1.3.1b 32-bit2800+23
−23
(−111)21.5 − 8.5
(+15−2=13)
71.7%
21.5 / 30
100.0%
+27
–   Hannibal 1.0a 32-bit2799+12
−12
(−112)20.5 − 9.5
(+15−4=11)
68.3%
20.5 / 30
100.0%
+10
–   Spark 0.3a 32-bit2798+17
−17
(−113)19.5 − 11.5
(+12−4=15)
62.9%
19.5 / 31
100.0%
−33
–   Spark 0.3 32-bit2796+16
−16
(−115)21.5 − 10.5
(+14−3=15)
67.2%
21.5 / 32
100.0%
−9
–   Doch 09.980 32-bit2794+19
−19
(−117)19.5 − 10.5
(+11−2=17)
65.0%
19.5 / 30
100.0%
−31
–   Hiarcs Paderborn 20072794+18
−18
(−117)20.5 − 9.5
(+15−4=11)
68.3%
20.5 / 30
100.0%
+2
–   Naum 2.2 32-bit2793+15
−15
(−118)33 − 12
(+23−2=20)
73.3%
33.0 / 45
100.0%
+29
–   Hiarcs 11.12789+15
−15
(−122)31 − 9
(+24−2=14)
77.5%
31.0 / 40
100.0%
+65
–   Zappa Mexico 32-bit2788+17
−17
(−123)22.5 − 10.5
(+15−3=15)
68.2%
22.5 / 33
100.0%
−9
–   Toga II 1.3.12788+12
−11
(−123)44.5 − 18.5
(+32−6=25)
70.6%
44.5 / 63
100.0%
+10
–   Fruit 2.3.12785+14
−14
(−126)20.5 − 5.5
(+17−2=7)
78.8%
20.5 / 26
100.0%
+80
–   Zap!Chess Zanzibar 32-bit2781+19
−19
(−130)23 − 7
(+17−1=12)
76.7%
23.0 / 30
100.0%
+44
–   MinkoChess 1.2 32-bit2779+14
−14
(−132)19.5 − 10.5
(+12−3=15)
65.0%
19.5 / 30
100.0%
−41
–   Fritz 102777+15
−15
(−134)16.5 − 7.5
(+12−3=9)
68.8%
16.5 / 24
100.0%
−14
–   Bright 0.5c2777+12
−12
(−134)22 − 8
(+17−3=10)
73.3%
22.0 / 30
100.0%
+23
–   Jonny 4.002776+11
−11
(−135)18.5 − 11.5
(+10−3=17)
61.7%
18.5 / 30
100.0%
−68
–   Bright 0.4a2775+10
−10
(−136)22 − 8
(+16−2=12)
73.3%
22.0 / 30
100.0%
+12
–   Hiarcs 112775+25
−25
(−136)8 − 2
(+6−0=4)
80.0%
8.0 / 10
100.0%
+59
–   Fruit 05/11/032772+20
−20
(−139)25 − 6
(+19−0=12)
80.6%
25.0 / 31
100.0%
+61
–   Loop 13.6 (Loop 2007) 32-bit2772+9
−10
(−139)47 − 16
(+34−3=26)
74.6%
47.0 / 63
100.0%
+20
–   Shredder 102770+13
−13
(−141)28 − 6
(+24−2=8)
82.4%
28.0 / 34
100.0%
+105
–   Hiarcs 11.22769+19
−19
(−142)17 − 9
(+12−4=10)
65.4%
17.0 / 26
100.0%
−42
–   Strelka 1.8 32-bit2768+19
−19
(−143)3.5 − 1.5
(+2−0=3)
70.0%
3.5 / 5
100.0%
−32
–   Toga II 1.3.42766+28
−28
(−145)25.5 − 8.5
(+18−1=15)
75.0%
25.5 / 34
100.0%
+16
–   Glaurung 2.1 32-bit2764+18
−18
(−147)24.5 − 5.5
(+20−1=9)
81.7%
24.5 / 30
100.0%
+79
–   Toga II 1.2.1a 32-bit2759+12
−12
(−152)13.5 − 6.5
(+10−3=7)
67.5%
13.5 / 20
100.0%
−35
–   Strelka 1.0b 32-bit2749+28
−28
(−162)17.5 − 2.5
(+15−0=5)
87.5%
17.5 / 20
100.0%
+124
–   Deep Sjeng 2.72749+15
−15
(−162)24 − 9
(+20−5=8)
72.7%
24.0 / 33
100.0%
+1
–   Spike 1.2 Turin2744+7
−7
(−167)24.5 − 15.5
(+16−7=17)
61.3%
24.5 / 40
100.0%
−99
–   Junior 102743+13
−13
(−168)28 − 5
(+25−2=6)
84.8%
28.0 / 33
100.0%
+114
–   Fruit 2.2.12743+13
−13
(−168)15.5 − 4.5
(+12−1=7)
77.5%
15.5 / 20
100.0%
+17
–   Naum 2.1 32-bit2742+20
−20
(−169)27 − 10
(+21−4=12)
73.0%
27.0 / 37
100.0%
−9
–   Glaurung 2.0.1 32-bit2737+16
−16
(−174)24.5 − 7.5
(+17−0=15)
76.6%
24.5 / 32
100.0%
−8
–   Twisted Logic 20100131x 32-bit2735+18
−18
(−176)25.5 − 4.5
(+21−0=9)
85.0%
25.5 / 30
100.0%
+76
–   Bright 0.3a2729+19
−19
(−182)22 − 7
(+17−2=10)
75.9%
22.0 / 29
100.0%
−6
–   Twisted Logic 20090922 32-bit2729+19
−19
(−182)23 − 7
(+17−1=12)
76.7%
23.0 / 30
100.0%
−8
–   Bison 9.11 32-bit2727+14
−14
(−184)23 − 7
(+16−0=14)
76.7%
23.0 / 30
100.0%
−19
–   Twisted Logic 200806202722+16
−17
(−189)22.5 − 7.5
(+17−2=11)
75.0%
22.5 / 30
100.0%
−22
–   Junior 10.12720+25
−25
(−191)13.5 − 6.5
(+8−1=11)
67.5%
13.5 / 20
100.0%
−89
–   Ktulu 82706+9
−9
(−205)32 − 10
(+25−3=14)
76.2%
32.0 / 42
100.0%
−28
–   Chess Tiger 2007.12703+10
−10
(−208)25.5 − 6.5
(+20−1=11)
79.7%
25.5 / 32
100.0%
−4
–   Glaurung 2 epsilon/5 32-bit2696+27
−27
(−215)18.5 − 1.5
(+17−0=3)
92.5%
18.5 / 20
100.0%
+165
–   Naum 2.0 32-bit2696+15
−15
(−215)25 − 5
(+20−0=10)
83.3%
25.0 / 30
100.0%
+18
–   Frenzee Feb08 32-bit2694+13
−13
(−217)23 − 7
(+18−2=10)
76.7%
23.0 / 30
100.0%
−33
–   Booot 4.15.02692+14
−14
(−219)24.5 − 5.5
(+20−1=9)
81.7%
24.5 / 30
100.0%
+7
–   Delfi 5.42689+12
−12
(−222)22.5 − 7.5
(+18−3=9)
75.0%
22.5 / 30
100.0%
−48
–   Crafty 23.1 32-bit2686+18
−18
(−225)25.5 − 4.5
(+21−0=9)
85.0%
25.5 / 30
100.0%
+29
–   Chess Tiger 20072681+12
−12
(−230)25 − 7
(+19−1=12)
78.1%
25.0 / 32
100.0%
−42
–   Scorpio 1.842667+32
−32
(−244)8.5 − 1.5
(+8−1=1)
85.0%
8.5 / 10
100.0%
+66
–   Movei 00.8.438 (10 10 10)2666+11
−11
(−245)27 − 5
(+22−0=10)
84.4%
27.0 / 32
100.0%
+1
–   Chessmaster 112664+12
−12
(−247)1 − 1
(+1−1=0)
50.0%
1.0 / 2
100.0%
−247
–   CM10th Xperience2660+13
−13
(−251)26.5 − 3.5
(+24−1=5)
88.3%
26.5 / 30
100.0%
+70
–   Alaric 7072660+12
−11
(−251)22.5 − 3.5
(+20−1=5)
86.5%
22.5 / 26
100.0%
+46
–   CM10th Paralyse2654+14
−15
(−257)25 − 6
(+19−0=12)
80.6%
25.0 / 31
100.0%
−52
–   Scorpio 2.0 32-bit2652+16
−17
(−259)2 − 0
(+2−0=0)
100.0%
2.0 / 2
100.0%
+INF
–   Alaric 7042644+32
−32
(−267)17 − 3
(+14−0=6)
85.0%
17.0 / 20
100.0%
−14
–   Delfi 5.12628+25
−26
(−283)16 − 4
(+12−0=8)
80.0%
16.0 / 20
100.0%
−84

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Rating changes with played games


Created in 2005-2013 by CCRL team
Last games added on May 8, 2021