CCRL Blitz
Downloads and Statistics
February 20, 2021
Testing summary:
Total: 2'464'260 games
played by 2'932 programs

White wins: 947'616 (38.5%)
Black wins: 759'359 (30.8%)
Draws: 757'285 (30.7%)
White score: 53.8%

Engine Details

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Stockfish 1.6.3 64-bit 4CPU (3090+13
−13		)Quote
Authors: Marco Costalba, Joona Kiiski, Stockfish team members Links: Homepage, Development Versions, Testing Framework
Stockfish was originally based on Glaurung by Tord Romstad.
This is one of the 71 Stockfish versions we tested: Compare them!
OpponentEloDiffResultsScoreLOSPerf
–   Rybka 3 64-bit 4CPU3167+10
−10		(+77)34.5 − 64.5
(+15−45=39)
34.8%
34.5 / 99
0.0%
−21
0 0 = = 0 0 0 1 0 0 0 0 = 0 = 0 = = = 1 = = 0 = = 0 = 0 1 0 1 0 1 0 0 = 0 0 0 0 = 0 = 0 = = = = 1 0 = 0 = 0 1 = 1 = = 0 = 0 1 0 = = = = 1 0 = 0 = 0 0 0 = = = 0 1 = = 0 = 0 = = 1 0 0 0 1 0 1 0 1 0 0
–   Stockfish 1.7.1 64-bit 4CPU3141+13
−13		(+51)27.5 − 38.5
(+5−16=45)
41.7%
27.5 / 66
0.0%
+6
= = = 0 0 0 = = 0 = = = 1 = = 0 = = = = 0 = = = 0 = = 0 0 = = 1 = = = = 0 = 0 = = 0 0 0 = = 1 = = = = = = = 0 = = = = = 1 = = 1 = 0
–   Naum 4.2 64-bit 4CPU3099+8
−8		(+9)31 − 33
(+17−19=28)
48.4%
31.0 / 64
11.7%
−1
0 = 0 = = 1 = 1 = 0 = = = 0 = = 0 1 = 1 0 = 1 1 1 1 1 0 0 1 = = 0 = = 0 0 1 0 1 0 = = = = 0 = 1 0 = 1 = 0 = = 1 0 = 1 1 0 = 0 =
–   Stockfish 1.6s JA 64-bit 4CPU3094+13
−13		(+4)44.5 − 54.5
(+14−24=61)
44.9%
44.5 / 99
33.4%
−24
= = = = = = = 0 1 1 0 = = = 0 = 0 1 1 0 = = = = = = 0 = 0 = = 1 = = = 1 0 = = = = 1 = 0 1 0 = = = = = 0 = = 0 0 = = 0 = = 0 = = 1 = = 0 = 0 1 = = 1 0 = 1 = = = = = = 0 = = = 0 = = 0 1 = 0 0 1 0 = =
–   Naum 4.1 64-bit 4CPU3071+15
−15		(−19)53 − 47
(+28−22=50)
53.0%
53.0 / 100
97.8%
0
1 = = 0 = 1 1 0 1 1 1 = = 1 0 0 = = = 1 = = = = 1 1 0 = = = 1 0 1 = = = = 0 0 = 1 = = 0 = 1 0 0 = 1 1 0 1 = = = 1 0 1 = 0 = 0 = 1 = 1 0 = = = 0 = = = 0 1 = 0 = = = = = 1 1 1 0 1 = 1 = = = = = 1 0 = 0
–   Naum 4 64-bit 4CPU3062+10
−10		(−28)46 − 54
(+23−31=46)
46.0%
46.0 / 100
100.0%
−54
0 1 = 1 = = = = 1 0 0 = 1 1 0 = = 1 0 0 0 = = = 1 = = = 1 = 0 = 0 = 0 = = = 0 0 1 = = 0 = = = 1 0 = 0 1 1 = = 1 = 1 0 0 0 1 1 1 1 0 = 1 0 = 1 = = 0 0 1 0 = = = 0 = 0 = 0 = 0 0 0 = 0 1 1 = = = = = 0 =
–   Deep Shredder 12 64-bit 4CPU3042+7
−7		(−48)114.5 − 85.5
(+70−41=89)
57.3%
114.5 / 200
100.0%
−3
1 = = = = 1 1 1 1 0 = 1 = 1 1 = 0 1 = = = = 1 = 1 = 0 0 = = = 1 0 = 0 = 1 = = 1 1 1 1 = = 1 = = = = 1 1 0 1 = 1 = = 1 0 1 = 0 = 0 1 0 0 0 = 0 = 1 = 1 1 1 = 0 = 1 = 0 1 = = 0 = = = = = = = 0 = = 0 0 1 1 1 1 0 1 1 0 1 = = = 0 1 = = 0 1 1 1 0 = 0 1 0 1 1 = 0 1 1 0 1 1 1 = = 1 0 = 1 1 = = = = 0 = = = = 1 0 0 1 = = = = = = 1 0 1 = 0 = = = 1 1 = = 1 = 0 0 1 = 1 0 1 = 0 = = 1 1 0 1 1 = 1 1 = 1 = = = 0 =
–   Rybka 2.2 64-bit 4CPU3003+12
−12		(−87)66 − 34
(+43−11=46)
66.0%
66.0 / 100
100.0%
+12
0 1 1 1 0 1 = = 0 1 1 = 1 1 = = = 1 = 1 1 1 = 1 = = = 1 = 0 = = = = 1 = 0 = 1 1 0 0 = = 1 1 1 1 0 1 = 0 1 = 1 = = = = 1 = 1 = 0 1 = = = = 1 = 1 1 = = = = 1 = 0 = 1 = 1 1 1 = 1 = 1 1 = 1 1 = 1 1 = 1 =
–   Spark 0.4 64-bit 4CPU2989+14
−14		(−101)46.5 − 16.5
(+33−3=27)
73.8%
46.5 / 63
100.0%
+49
= 1 = 1 = 1 = = = = 1 1 = 1 = = = 1 = 1 1 = = 1 0 1 1 1 = = 1 = 1 1 0 1 = 1 = 1 = = = 1 1 = 1 = 1 0 1 1 = 1 1 1 1 = = 1 1 1 1
–   Zappa Mexico II 64-bit 4CPU2973+7
−7		(−117)72 − 28
(+54−10=36)
72.0%
72.0 / 100
100.0%
+30
1 = 1 = = = 1 = 1 = 1 1 1 = 0 = 1 = 1 1 1 = 1 = 1 = = 0 1 = 1 1 1 1 1 1 1 1 1 1 = 1 0 = 1 0 = 0 1 1 1 1 = 1 = = 1 0 = 1 1 = 1 = 1 0 1 1 1 1 1 1 1 = = = = 0 1 1 1 = 1 1 = = 1 = = 0 1 = 1 = 1 = = 0 1 1
–   Spark 0.3 64-bit 4CPU2970+12
−12		(−120)69.5 − 30.5
(+49−10=41)
69.5%
69.5 / 100
100.0%
+4
1 1 = = = = = 1 1 1 0 1 1 = = = 1 1 1 1 = 1 1 1 = 1 = 1 0 1 1 0 = 1 1 1 1 = 0 1 1 = 0 = = 1 = 1 = = = 1 = = 0 = 1 = 1 = 0 1 = 0 1 = = 1 0 1 = 0 1 1 1 1 = = 1 = 1 = 1 1 = 1 1 1 = 1 = = = = 1 1 = 1 = 1
–   Spark 0.3a 64-bit 4CPU2963+18
−17		(−127)33.5 − 16.5
(+26−9=15)
67.0%
33.5 / 50
100.0%
−11
1 1 1 = = 0 1 = = 1 = = 1 0 = = 1 1 = = 1 = 1 0 = 1 = 0 0 1 1 0 0 0 1 = 1 1 1 1 = 1 1 1 1 0 1 1 1 1
–   Thinker 5.4c Inert 64-bit 4CPU2954+8
−8		(−136)70.5 − 29.5
(+57−16=27)
70.5%
70.5 / 100
100.0%
+9
0 1 1 1 0 1 1 0 1 1 = 1 = = 1 1 1 = 1 = 1 0 0 1 0 1 0 1 = 1 1 1 = 1 = 1 1 = = 1 1 = 1 1 1 0 0 = = = 0 = = 1 = 1 0 1 = 1 1 1 = = 1 1 1 1 = = 0 1 0 1 0 = 1 = 1 1 1 1 1 1 0 1 0 1 1 1 = 1 = 1 = 1 1 1 1 1
–   Protector 1.3.4 64-bit 4CPU2952+13
−13		(−138)22.5 − 11.5
(+15−4=15)
66.2%
22.5 / 34
100.0%
−37
1 1 0 = 1 1 1 = 1 = = = = 1 = = 1 1 0 = = = = 1 0 = 1 1 1 = = 0 1 1
–   Zappa Mexico 64-bit 4CPU2946+8
−8		(−144)75 − 25
(+59−9=32)
75.0%
75.0 / 100
100.0%
+28
1 1 = 1 1 = = 1 1 1 0 1 1 1 1 = 0 = 1 = 1 = 1 1 0 1 = 1 1 = = 1 1 0 0 1 0 1 1 1 = = = 0 1 1 1 1 1 1 = 1 = 1 = 1 1 1 = 1 = 1 1 = = 1 0 = = 1 = 1 1 1 1 1 1 = = 1 1 1 1 = 1 = = = = 1 = 1 1 1 1 = 0 1 1 1
–   Deep Junior 11.1a 64-bit 4CPU2943+14
−14		(−147)39.5 − 10.5
(+32−3=15)
79.0%
39.5 / 50
100.0%
+59
1 = 1 1 1 1 1 = = 1 1 0 1 = 1 = 1 1 1 = 1 1 1 1 1 1 = 1 1 1 1 = 0 1 = = = 1 1 1 0 = 1 = 1 1 1 1 = =
–   Hiarcs 12 4CPU2942+9
−9		(−148)72.5 − 27.5
(+58−13=29)
72.5%
72.5 / 100
100.0%
+10
0 1 1 = = = 0 1 1 1 1 1 = 1 0 = 1 1 = 1 0 = = 1 1 1 0 1 = = 1 1 1 1 = 1 = 1 1 = 1 0 1 1 1 1 1 1 1 1 1 1 0 0 1 1 = 1 = = 0 1 1 = 1 1 0 1 0 1 = 1 0 1 = 1 1 1 1 = = 1 0 1 = 1 = 1 = 1 = 1 = 1 = 1 = 1 = 1
–   Deep Sjeng WC2008 64-bit 4CPU2941+8
−8		(−149)71 − 29
(+54−12=34)
71.0%
71.0 / 100
100.0%
−4
1 1 1 = 1 = 1 = 1 1 1 = = 1 = 1 1 = 1 = 1 1 1 0 1 = 0 = 1 = 1 = 0 = 1 = 1 = 0 1 1 = 1 = 1 = 0 = 1 0 1 1 1 0 0 = 1 1 1 = = 1 0 = 1 1 = = 1 1 1 1 1 1 0 0 0 1 1 = = = = 1 = = = 1 1 1 1 1 1 1 1 = 1 1 1 =
–   Hiarcs 12.1 4CPU2940+10
−10		(−150)66 − 34
(+49−17=34)
66.0%
66.0 / 100
100.0%
−43
1 1 1 0 1 = 1 = 1 1 1 = 1 = = = 1 1 1 = = = 1 1 1 1 1 = = 0 1 1 = 1 = = = 0 1 = 1 0 1 0 0 = 1 1 = = = 1 1 0 1 0 1 1 = 1 0 1 = 1 = 1 0 0 0 1 1 0 = 0 1 = 1 1 1 1 1 = = = 1 = 1 1 = = 1 0 1 0 1 0 = = = 1
–   Bright 0.4a 4CPU2911+11
−11		(−179)78 − 22
(+64−8=28)
78.0%
78.0 / 100
100.0%
+21
1 = 1 1 1 1 0 1 0 1 1 1 0 1 1 1 1 1 1 1 1 1 1 1 1 = 1 1 = 1 0 1 = 1 1 = = 0 = = 0 = = 1 1 1 1 1 1 = 1 1 1 1 = 1 1 1 = 1 1 1 1 1 1 = = 1 = = 1 1 = 1 = 1 0 1 1 = = 1 0 1 1 = 1 1 = 1 = 1 = = 1 1 = 1 1 =
–   Toga II 1.4 beta5c 4CPU2905+9
−9		(−185)76 − 24
(+60−8=32)
76.0%
76.0 / 100
100.0%
−4
= = 0 1 1 1 1 1 = 1 1 0 1 1 0 1 = = 1 1 1 = = = 1 1 = = 1 1 1 = 1 0 1 = 1 = 1 1 = = 1 = 1 1 1 0 1 = 1 1 = 1 1 1 1 1 = 1 1 1 1 0 1 1 1 1 1 = 1 = 1 1 1 0 1 = 1 = 1 1 = = 1 = 1 0 = 1 1 = 1 = 1 = = 1 1 =
–   Bright 0.5c 4CPU2904+13
−14		(−186)38.5 − 11.5
(+33−6=11)
77.0%
38.5 / 50
100.0%
+16
1 0 1 1 = 1 1 1 1 0 1 = 1 1 1 1 1 1 1 = 1 = 1 1 1 = = 1 = 0 1 0 1 0 0 1 1 = 1 1 = 1 = 1 1 = 1 1 1 1
–   Loop M1-T 64-bit 4CPU2882+8
−8		(−208)78.5 − 19.5
(+63−4=31)
80.1%
78.5 / 98
100.0%
+4
1 1 1 1 1 1 = 1 1 1 = = 1 1 1 1 = 1 1 1 = 1 1 = 1 1 = 1 1 = 1 = 1 1 1 1 1 = 1 = 1 1 1 1 1 = 1 1 1 = = = 1 = 1 = 1 = 1 = 1 = 1 = = 1 = = 1 1 1 = 1 0 0 1 1 = 1 = 1 = 1 1 1 1 1 0 = 1 1 1 = = 1 0 1 1
–   Spike 1.2 Turin2731+6
−6		(−359)91.5 − 7.5
(+84−0=15)
92.4%
91.5 / 99
100.0%
+19
1 1 1 = 1 1 1 1 1 1 1 1 = 1 1 1 1 = = = 1 1 = 1 1 1 1 1 1 1 1 1 1 1 1 1 1 = 1 1 1 1 1 1 = = 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 = 1 1 1 1 = 1 1 1 1 = 1 1 1 1 1 1 1 1 1 1 1 1 1 1 = 1 1 1 1 = 1 = 1 1 1 1
2172 games: 1005 wins, 341 losses, 826 draws (38.0%), score: 65.3%

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Created in 2005-2013 by CCRL team
Last games added on February 20, 2021