CCRL Blitz
Downloads and Statistics
July 4, 2020
Testing summary:
Total: 2'318'734 games
played by 2'727 programs

White wins: 893'537 (38.5%)
Black wins: 718'844 (31.0%)
Draws: 706'353 (30.5%)
White score: 53.8%

Engine Details

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Rybka 2.2 64-bit 4CPU (3003+12
−12
)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
–   Stockfish 1.6s JA 64-bit 4CPU3094+13
−13
(+91)41.5 − 57.5
(+22−38=39)
41.9%
41.5 / 99
0.0%
+38
–   Stockfish 1.6.3 64-bit 4CPU3090+13
−13
(+87)34 − 66
(+11−43=46)
34.0%
34.0 / 100
0.0%
−12
–   Naum 4.1 64-bit 4CPU3071+15
−15
(+68)21.5 − 28.5
(+6−13=31)
43.0%
21.5 / 50
0.0%
+29
–   Naum 4 64-bit 4CPU3062+10
−10
(+59)42.5 − 57.5
(+14−29=57)
42.5%
42.5 / 100
0.0%
+13
–   Deep Shredder 12 64-bit 4CPU3042+7
−7
(+39)91.5 − 108.5
(+49−66=85)
45.8%
91.5 / 200
0.0%
+12
–   Stockfish 1.5.1 64-bit 4CPU3029+14
−14
(+26)46 − 54
(+27−35=38)
46.0%
46.0 / 100
0.2%
0
–   Naum 3.1 64-bit 4CPU2979+10
−10
(−24)52 − 48
(+22−18=60)
52.0%
52.0 / 100
99.9%
−12
–   Stockfish 1.4 64-bit 4CPU2976+15
−15
(−27)58 − 42
(+39−23=38)
58.0%
58.0 / 100
99.8%
+24
–   Zappa Mexico II 64-bit 4CPU2972+7
−7
(−31)56 − 43
(+32−19=48)
56.6%
56.0 / 99
100.0%
+7
–   Spark 0.3 64-bit 4CPU2970+12
−12
(−33)49.5 − 50.5
(+22−23=55)
49.5%
49.5 / 100
100.0%
−33
–   Spark 0.3a 64-bit 4CPU2963+18
−18
(−40)29 − 21
(+17−9=24)
58.0%
29.0 / 50
100.0%
+6
–   Thinker 5.4c Inert 64-bit 4CPU2954+8
−9
(−49)56 − 44
(+34−22=44)
56.0%
56.0 / 100
100.0%
−12
–   Deep Junior 11.1a 64-bit 4CPU2943+14
−14
(−60)29 − 21
(+20−12=18)
58.0%
29.0 / 50
100.0%
−7
–   Deep Sjeng WC2008 64-bit 4CPU2941+8
−8
(−62)58 − 42
(+34−18=48)
58.0%
58.0 / 100
100.0%
−13
–   Hiarcs 12.1 4CPU2939+10
−10
(−64)57 − 43
(+40−26=34)
57.0%
57.0 / 100
100.0%
−17
–   Deep Shredder 11 64-bit 4CPU2932+9
−9
(−71)59.5 − 40.5
(+41−22=37)
59.5%
59.5 / 100
100.0%
−8
–   Deep Sjeng 3.0 64-bit 4CPU2931+9
−9
(−72)62.5 − 37.5
(+44−19=37)
62.5%
62.5 / 100
100.0%
+11
–   Thinker 5.4a Inert 64-bit 4CPU2927+13
−13
(−76)60 − 40
(+33−13=54)
60.0%
60.0 / 100
100.0%
−16
–   Glaurung 2.2 64-bit 4CPU2918+11
−11
(−85)64 − 36
(+47−19=34)
64.0%
64.0 / 100
100.0%
+8
–   Bright 0.5c 4CPU2906+14
−14
(−97)33.5 − 16.5
(+25−8=17)
67.0%
33.5 / 50
100.0%
+17
–   Fritz 112888+9
−9
(−115)64.5 − 35.5
(+36−7=57)
64.5%
64.5 / 100
100.0%
−31
–   Loop M1-T 64-bit 4CPU2882+8
−8
(−121)67.5 − 31.5
(+48−12=39)
68.2%
67.5 / 99
100.0%
−2
–   Crafty 23.0 64-bit 4CPU2745+17
−17
(−258)80 − 19
(+68−7=24)
80.8%
80.0 / 99
100.0%
−28
–   Scorpio 2.1 64-bit 4CPU2723+17
−17
(−280)88 − 12
(+81−5=14)
88.0%
88.0 / 100
100.0%
+48
–   Arasan 11.3 64-bit 4CPU2575+22
−22
(−428)95 − 5
(+90−0=10)
95.0%
95.0 / 100
100.0%
+22

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Created in 2005-2013 by CCRL team
Last games added on July 4, 2020