CCRL Blitz
Downloads and Statistics
January 23, 2021
Testing summary:
Total: 2'444'303 games
played by 2'907 programs

White wins: 940'165 (38.5%)
Black wins: 754'457 (30.9%)
Draws: 749'681 (30.7%)
White score: 53.8%

Engine Details

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Stockfish 1.9.1 64-bit 4CPU (3153+12
−12		)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 70 Stockfish versions we tested: Compare them!
OpponentEloDiffResultsScoreLOSPerf
–   RubiChess 1.6 64-bit 4CPU3263+16
−16		(+110)6 − 24
(+1−19=10)
20.0%
6.0 / 30
0.0%
−98
0 0 = 1 0 = 0 0 0 = 0 0 0 0 0 0 0 0 0 = 0 = 0 = = = = = 0 0
–   Vajolet2 2.8 64-bit 4CPU3228+11
−11		(+75)13.5 − 16.5
(+5−8=17)
45.0%
13.5 / 30
0.0%
+47
= = = = = 0 = = 0 = = = 0 1 = = 0 0 1 1 0 = 0 = = 1 = 0 = 1
–   Rybka 4 64-bit 4CPU3198+11
−11		(+45)42.5 − 57.5
(+16−31=53)
42.5%
42.5 / 100
0.0%
+2
= = = = 0 0 = 0 0 = = 1 0 = = 0 = = 0 0 = = 1 = 0 = 0 = = = 1 0 = = 1 = = = 1 = 1 = 1 = 0 = = = = 0 0 0 0 = 1 1 0 = = = = 0 = 0 = 0 1 = = = 1 0 1 = 1 = 1 0 = 0 0 0 = 0 1 = = 0 0 = = = = 0 0 1 = 0 = =
–   RubiChess 1.5 64-bit 4CPU3190+25
−25		(+37)15 − 15
(+8−8=14)
50.0%
15.0 / 30
0.6%
+39
0 1 1 = = = = 1 = 0 = 1 = = = 0 0 0 0 1 = 1 0 = = = = 1 0 1
–   Stockfish 2.0.1 64-bit 4CPU3167+15
−14		(+14)23 − 27
(+3−7=40)
46.0%
23.0 / 50
7.0%
−7
= = = = 1 0 = 0 1 0 = = = 1 = = = = = 0 = = = = = = = = = 0 = = = = = = = = = = = = = = 0 = = = = 0
–   Stockfish 1.7.1 64-bit 4CPU3141+13
−13		(−12)50 − 50
(+18−18=64)
50.0%
50.0 / 100
92.2%
−12
= = 1 = = = 1 0 1 = = = = = = = 1 = 1 0 = = = 0 = 0 = = = = = = 0 = = 0 1 = = = 1 = = = = 0 = 1 = 0 1 = 0 = = = = = 0 1 1 = = 0 = = = 0 = = = = = = = = = 0 = = 1 1 = 1 = = 0 = 1 0 = 0 1 1 = = 1 0 0 =
–   Stockfish 1.8 64-bit 4CPU3137+16
−16		(−16)25 − 25
(+7−7=36)
50.0%
25.0 / 50
94.4%
−14
1 = = = 0 = = = = = 1 0 = = = 1 = = = 1 = = = = 0 = = = 1 0 = = = 0 = = 1 = 0 = 1 = = = = = = = 0 =
–   Critter 0.90 64-bit 4CPU3128+15
−14		(−25)53 − 44
(+28−19=50)
54.6%
53.0 / 97
99.7%
+4
= = = 1 1 0 1 = = 0 1 0 = = 1 1 0 0 0 = 1 = 1 = 0 = = = 0 = 0 1 = 1 = 0 1 = 1 = 0 = 1 0 0 = = 1 1 0 = = 0 = 1 1 = 0 = = = = 1 = = = 1 0 1 = = 1 1 = = = = = = = 1 = 0 = 0 1 = 1 1 1 = = = = = 1 =
–   Naum 4.2 64-bit 4CPU3099+8
−8		(−54)61 − 38
(+45−22=32)
61.6%
61.0 / 99
100.0%
+23
1 = = 1 = = 0 1 = 0 1 1 1 = 0 = = 0 1 1 1 = = = 1 0 1 0 1 1 1 1 0 1 1 1 = = 1 = 1 0 1 0 1 0 1 0 = 1 = 0 0 0 = 1 = = 0 0 0 = 1 0 1 1 = 1 = 0 1 = 1 0 1 = 1 1 1 1 = = 1 = = 1 1 0 1 = = 1 = 1 = 0 1 1 1
–   Critter 0.80 64-bit 4CPU3070+17
−17		(−83)34 − 16
(+21−3=26)
68.0%
34.0 / 50
100.0%
+23
= = = 1 = = = = = 1 = 1 1 = 0 0 = 1 1 = 1 = = 1 = = 1 = = 1 = = 1 = 1 = 1 = 1 = 1 = 1 1 1 1 = 1 1 0
–   Deep Shredder 12 64-bit 4CPU3042+7
−7		(−111)57 − 42
(+32−17=50)
57.6%
57.0 / 99
100.0%
−66
= 1 = = 0 1 0 1 1 = = 1 = = 1 1 1 1 1 = = 1 = = = = 0 1 0 = = 0 1 = 1 = = 1 0 = = = = 0 1 = = 1 = 1 0 = = 1 = 1 = = 1 = = = 1 0 = 1 0 = = 0 = = 0 = 0 = = 1 = 0 = 1 = 0 = = 1 = 1 1 0 1 1 = 1 0 = 1 =
–   Hiarcs 13.2 4CPU3033+13
−13		(−120)32.5 − 17.5
(+21−6=23)
65.0%
32.5 / 50
100.0%
−26
= = 1 = 0 = = 1 = 0 = = 1 0 1 1 1 = 1 = 1 = = = 1 = 1 = 1 1 = 1 = 0 1 1 1 = 1 = 1 1 = 1 1 0 0 = = =
–   Spark 1.0 64-bit 4CPU3027+8
−8		(−126)65.5 − 31.5
(+47−13=37)
67.5%
65.5 / 97
100.0%
−13
= 1 1 = = = 0 0 1 1 1 1 = = = 1 1 1 = 1 = 1 0 = 1 1 = = = 1 1 1 1 1 = 1 0 1 = = 1 = 1 = 0 1 1 = 1 1 0 1 1 1 = 1 = = 1 = 0 = 1 1 = = 1 0 0 1 = 1 1 = = = = 1 1 1 1 0 = 1 1 1 0 1 1 1 = = = 0 = 0 =
–   Hiarcs 13.1 4CPU3009+12
−12		(−144)36.5 − 13.5
(+27−4=19)
73.0%
36.5 / 50
100.0%
+7
1 0 = 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 = 0 = 1 = = 1 1 =
–   Spark 0.5 64-bit 4CPU3000+15
−15		(−153)73.5 − 26.5
(+55−8=37)
73.5%
73.5 / 100
100.0%
+2
1 = 0 1 1 1 = 1 1 1 = 1 1 = = = 1 1 = = 1 = = 1 1 1 = 1 1 = 1 = 0 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 = = 1 1 1 1 1 = 0 = = 1 = 1 = 1 0 = = = 1 = 0 1 0 1 = 1
–   Komodo 1.3 64-bit2993+12
−12		(−160)39 − 11
(+31−3=16)
78.0%
39.0 / 50
100.0%
+34
= = 1 1 1 1 1 1 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 1 0 0 =
–   Deep Junior 12 64-bit 4CPU2990+16
−16		(−163)38.5 − 11.5
(+30−3=17)
77.0%
38.5 / 50
100.0%
+19
= = 1 1 = 1 1 1 1 = 1 = = 0 1 = = = 1 1 = = 1 1 = 1 1 0 = 1 = 1 1 0 1 = 1 1 1 1 1 1 = 1 1 1 1 = 1 1
–   Zappa Mexico II 64-bit 4CPU2972+7
−7		(−181)79 − 21
(+65−7=28)
79.0%
79.0 / 100
100.0%
+29
1 = 1 1 1 = 0 1 1 1 = 1 0 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 0 1 0 = = 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 = =
–   Protector 1.4.0 64-bit 4CPU2972+13
−13		(−181)38 − 12
(+29−3=18)
76.0%
38.0 / 50
100.0%
−6
= = = 1 1 1 1 1 1 1 1 0 1 = 1 = 1 0 1 = = = 1 = 1 = 1 1 1 = = 1 0 1 1 1 1 = = = 1 1 = = 1 1 1 1 = 1
–   Protector 1.3.5 64-bit 4CPU2962+27
−27		(−191)43 − 6
(+39−2=8)
87.8%
43.0 / 49
100.0%
+123
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 1 1 1 = 1 = 1 1 1 1 = 0 1 1 1 1 1 1 =
–   Onno 1.2.70 64-bit 4CPU2955+12
−13		(−198)82 − 18
(+64−0=36)
82.0%
82.0 / 100
100.0%
+20
= 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
–   Thinker 5.4c Inert 64-bit 4CPU2953+9
−8		(−200)81.5 − 18.5
(+66−3=31)
81.5%
81.5 / 100
100.0%
+23
= = 1 1 1 1 1 1 1 1 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 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 1 1 1 1 1 1 =
–   Protector 1.3.4 64-bit 4CPU2952+13
−13		(−201)76.5 − 23.5
(+56−3=41)
76.5%
76.5 / 100
100.0%
−29
= 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 = 1 1 = 0 = 1 1 1 1 = 1 1 = = = = 1 1 1 1 = = 1 1 1 = 1 1 1 = 1 = = 1 = 1 1 1 1 1 0
–   Gull 1.1 64-bit2943+12
−12		(−210)39.5 − 10.5
(+31−2=17)
79.0%
39.5 / 50
100.0%
−10
= = 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 0
–   Deep Junior 11.1a 64-bit 4CPU2943+14
−14		(−210)79 − 21
(+64−6=30)
79.0%
79.0 / 100
100.0%
−3
0 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 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 0 1 = 1 1 = 1 1 1 = 1 = 1 1 0 1 1 =
–   Deep Sjeng WC2008 64-bit 4CPU2941+8
−8		(−212)78 − 21
(+62−5=32)
78.8%
78.0 / 99
100.0%
−12
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 0 = = 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 1 = 1 1 1 1 = 0 1 1 = =
–   Hiarcs 12 4CPU2941+8
−9		(−212)81 − 19
(+71−9=20)
81.0%
81.0 / 100
100.0%
+28
1 1 1 1 1 1 1 = = 1 0 1 0 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 0 1 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 1 1 1 1 1 1 = 1 1 1 = = 1 1 = 0 1 1 1
–   Hiarcs 12.1 4CPU2939+10
−10		(−214)76.5 − 23.5
(+59−6=35)
76.5%
76.5 / 100
100.0%
−33
1 = = 1 0 1 = 1 0 1 1 0 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 1 1 1 0 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 =
–   Deep Sjeng 3.0 64-bit 4CPU2930+9
−9		(−223)87.5 − 11.5
(+77−1=21)
88.4%
87.5 / 99
100.0%
+85
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 0 1 = = = = 1 1 1 1
–   Deep Sjeng c't 20102926+14
−14		(−227)39.5 − 10.5
(+33−4=13)
79.0%
39.5 / 50
100.0%
−14
1 1 1 1 1 1 1 1 1 1 1 = 1 = 1 1 1 1 1 1 1 0 1 = = = 1 = 1 0 = 0 = = 0 = 1 1 1 = = 1 1 1 = 1 1 1 1 1
–   Deep Junior 11.2 64-bit 4CPU2925+17
−17		(−228)76.5 − 22.5
(+59−5=35)
77.3%
76.5 / 99
100.0%
−44
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 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 = 1 1 1 1 1 = 1
–   Toga II 1.4 beta5c 4CPU2904+9
−9		(−249)82.5 − 17.5
(+70−5=25)
82.5%
82.5 / 100
100.0%
−6
= 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 1 = = 1 1 1 0 = = 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 1 1 1 = = 1 1 = 1 = 1 1 1 1 1 1 = 1 0 1 = 1 1 =
2428 games: 1240 wins, 257 losses, 931 draws (38.3%), score: 70.2%

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Created in 2005-2013 by CCRL team
Last games added on January 23, 2021