CCRL 40/40
Downloads and Statistics
September 16, 2017
Testing summary:
Total: 741'280 games
played by 1'928 programs
101544 CPU days (X2 4600+)

White wins: 254'859 (34.4%)
Black wins: 189'270 (25.5%)
Draws: 297'151 (40.1%)
White score: 54.4%

Engine Details

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Rybka 1.1 32-bit (2854+18
−18
)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
–   Cheng 4.39 64-bit2920+14
−14
(+66)4.5 − 5.5
(+2−3=5)
45.0%
4.5 / 10
0.0%
+42
–   Rodent II 0.9.64 64-bit2917+21
−22
(+63)5 − 5
(+3−3=4)
50.0%
5.0 / 10
0.0%
+67
–   ChessBrainVB 3.312912+27
−27
(+58)4.5 − 5.5
(+2−3=5)
45.0%
4.5 / 10
0.0%
+22
–   Arasan 19.0.1 64-bit2908+26
−26
(+54)2.5 − 7.5
(+0−5=5)
25.0%
2.5 / 10
0.0%
−94
–   Cheng4 0.38 64-bit2891+23
−23
(+37)4 − 6
(+1−3=6)
40.0%
4.0 / 10
0.8%
−21
–   Rybka 2.2 32-bit2886+17
−17
(+32)11.5 − 18.5
(+2−9=19)
38.3%
11.5 / 30
0.6%
−33
–   Andscacs 0.71 64-bit2878+30
−30
(+24)3.5 − 6.5
(+1−4=5)
35.0%
3.5 / 10
9.1%
−59
–   ChessBrainVB 3.202873+25
−25
(+19)5.5 − 4.5
(+3−2=5)
55.0%
5.5 / 10
11.6%
+46
–   Rybka 1.2 32-bit2871+18
−18
(+17)14 − 16
(+5−7=18)
46.7%
14.0 / 30
9.4%
+1
–   Rodent II 0.9.33 64-bit2870+27
−27
(+16)3.5 − 6.5
(+2−5=3)
35.0%
3.5 / 10
18.0%
−88
–   EXchess 7.88b 64-bit2869+26
−26
(+15)5.5 − 4.5
(+3−2=5)
55.0%
5.5 / 10
17.7%
+46
–   Rybka 2.1 32-bit2867+23
−22
(+13)14.5 − 15.5
(+5−6=19)
48.3%
14.5 / 30
19.6%
+3
–   DisasterArea 1.65 64-bit2847+18
−18
(−7)6 − 4
(+4−2=4)
60.0%
6.0 / 10
71.3%
+55
–   Wasp 1.02 64-bit2843+28
−28
(−11)3 − 7
(+0−4=6)
30.0%
3.0 / 10
75.1%
−119
–   Demolito 2017-06-18 64-bit2843+25
−25
(−11)3 − 7
(+2−6=2)
30.0%
3.0 / 10
75.8%
−166
–   DisasterArea 1.54 64-bit2828+18
−18
(−26)5.5 − 4.5
(+4−3=3)
55.0%
5.5 / 10
98.0%
+5
–   ChessBrainVB 3.032822+25
−25
(−32)4.5 − 3.5
(+3−2=3)
56.3%
4.5 / 8
98.1%
+5
–   NirvanaChess 1.6 64-bit2822+27
−27
(−32)5 − 5
(+3−3=4)
50.0%
5.0 / 10
97.4%
−32
–   Rodent II 0.8.7 64-bit2810+27
−27
(−44)6 − 4
(+3−1=6)
60.0%
6.0 / 10
99.7%
+7
–   Rybka 1.0 32-bit2784+15
−15
(−70)19 − 11
(+10−2=18)
63.3%
19.0 / 30
100.0%
+6
–   Loop 10.32f2765+19
−19
(−89)14 − 11
(+9−6=10)
56.0%
14.0 / 25
100.0%
−53
–   Junior 102744+13
−13
(−110)14.5 − 11.5
(+8−5=13)
55.8%
14.5 / 26
100.0%
−79
–   Fruit 2.2.12743+14
−14
(−111)23 − 8
(+16−1=14)
74.2%
23.0 / 31
100.0%
+38
–   Naum 2.1 32-bit2743+20
−20
(−111)5.5 − 2.5
(+4−1=3)
68.8%
5.5 / 8
100.0%
+10
–   Fritz 92742+14
−14
(−112)16.5 − 13.5
(+12−9=9)
55.0%
16.5 / 30
100.0%
−77
–   Hiarcs 102740+16
−16
(−114)25 − 11
(+18−4=14)
69.4%
25.0 / 36
100.0%
+14
–   Toga II 1.1a 32-bit2731+17
−17
(−123)23.5 − 7.5
(+17−1=13)
75.8%
23.5 / 31
100.0%
+41
–   Shredder 92725+18
−17
(−129)22 − 9
(+16−3=12)
71.0%
22.0 / 31
100.0%
+2
–   Hiarcs 10 Hypermodern2718+20
−20
(−136)37.5 − 15.5
(+27−5=21)
70.8%
37.5 / 53
100.0%
0
–   Ktulu 82704+9
−9
(−150)27 − 13
(+18−4=18)
67.5%
27.0 / 40
100.0%
−40
–   Spike 1.12689+15
−15
(−165)33 − 9
(+27−3=12)
78.6%
33.0 / 42
100.0%
+39
–   Zap!Chess Paderborn 32-bit2682+21
−21
(−172)24 − 6
(+19−1=10)
80.0%
24.0 / 30
100.0%
+32
–   Junior 92676+17
−17
(−178)27 − 3
(+25−1=4)
90.0%
27.0 / 30
100.0%
+175
–   SmarThink 1.00 32-bit2664+15
−15
(−190)24 − 7
(+18−1=12)
77.4%
24.0 / 31
100.0%
−8
–   Ktulu 7.52663+16
−16
(−191)24 − 7
(+19−2=10)
77.4%
24.0 / 31
100.0%
−2
–   CM10th Xperience2660+13
−13
(−194)22 − 9
(+16−3=12)
71.0%
22.0 / 31
100.0%
−57
–   Zap!Chess Reykjavik 32-bit2658+34
−35
(−196)8.5 − 2.5
(+6−0=5)
77.3%
8.5 / 11
100.0%
−27
–   Spike 1.0a2649+19
−19
(−205)18 − 11
(+13−6=10)
62.1%
18.0 / 29
100.0%
−127
–   CM10th Magic II2646+16
−16
(−208)26.5 − 5.5
(+21−0=11)
82.8%
26.5 / 32
100.0%
+17
–   CM10th Ogre2646+24
−24
(−208)0 − 1
(+0−1=0)
0.0%
0.0 / 1
100.0%
−INF
–   Slow Chess Blitz WV2.12638+12
−12
(−216)1 − 0
(+1−0=0)
100.0%
1.0 / 1
100.0%
+INF
–   Ktulu 7.12637+18
−18
(−217)25.5 − 4.5
(+23−2=5)
85.0%
25.5 / 30
100.0%
+70
–   Chess Tiger 152636+17
−17
(−218)23.5 − 6.5
(+18−1=11)
78.3%
23.5 / 30
100.0%
−28
–   Glaurung 1.0.2 32-bit2634+17
−17
(−220)27.5 − 3.5
(+25−1=5)
88.7%
27.5 / 31
100.0%
+109
–   CM10th Warrior2633+25
−25
(−221)1 − 1
(+1−1=0)
50.0%
1.0 / 2
100.0%
−221
–   Gandalf 62632+12
−12
(−222)27 − 5
(+23−1=8)
84.4%
27.0 / 32
100.0%
+36
–   CM10th Default2632+15
−15
(−222)25 − 5
(+22−2=6)
83.3%
25.0 / 30
100.0%
+42
–   Ruffian 2.1.02621+13
−13
(−233)11.5 − 1.5
(+11−1=1)
88.5%
11.5 / 13
100.0%
+124
–   Scorpio 1.72611+33
−33
(−243)1 − 0
(+1−0=0)
100.0%
1.0 / 1
100.0%
+INF
–   Naum 1.91 32-bit2604+15
−15
(−250)28.5 − 2.5
(+26−0=5)
91.9%
28.5 / 31
100.0%
+116
–   Aristarch 4.502596+12
−12
(−258)1 − 0
(+1−0=0)
100.0%
1.0 / 1
100.0%
+INF
–   Chess Tiger 20042594+26
−27
(−260)23.5 − 2.5
(+21−0=5)
90.4%
23.5 / 26
100.0%
+76
–   WildCat 62593+21
−21
(−261)0.5 − 0.5
(+0−0=1)
50.0%
0.5 / 1
100.0%
−230
–   Delfi 4.62593+31
−31
(−261)1.5 − 0.5
(+1−0=1)
75.0%
1.5 / 2
100.0%
−118
–   Pseudo 0.7c2590+13
−13
(−264)1 − 0
(+1−0=0)
100.0%
1.0 / 1
100.0%
+INF
–   ProDeo 1.12589+31
−31
(−265)1 − 0
(+1−0=0)
100.0%
1.0 / 1
100.0%
+INF
–   SOS 5.12561+14
−14
(−293)0.5 − 0.5
(+0−0=1)
50.0%
0.5 / 1
100.0%
−262

Rating changes by day

Rating changes with played games

Participation in the pure lists

Pure listRankRatingNumber of games
Rybka 1.1 32-bit
played with current
participants of this list
Represented by
1-2-CPU    79Rybka 4.1 64-bit
32-bit    49Rybka 4.1 32-bit
32-bit 1-2-CPU    49Rybka 4.1 32-bit
32-bit single-CPU    49Rybka 4.1 32-bit
All    89Rybka 4 64-bit 4CPU
Single-CPU    79Rybka 4.1 64-bit

Created in 2005-2013 by CCRL team
Last games added on September 16, 2017