CCRL 40/15
Downloads and Statistics
February 28, 2021
Testing summary:
Total: 1'220'774 games
played by 2'799 programs

White wins: 419'368 (34.4%)
Black wins: 308'512 (25.3%)
Draws: 492'894 (40.4%)
White score: 54.5%

Engine Details

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Stockfish 1.8 32-bit (2989+17
−17		)Quote
Authors: Marco Costalba, Joona Kiiski, Stockfish team members Links: List of Authors, Homepage, Development Versions, Testing Framework
Stockfish was originally based on Glaurung by Tord Romstad.
This is one of the 122 Stockfish versions we tested: Compare them!
OpponentEloDiffResultsScoreLOSPerf
–   Pedone 2.0 64-bit3107+17
−17		(+118)7 − 9
(+3−5=8)		43.8%
7.0 / 16
0.0%
+78
0 = = = 1 0 = 1 0 = = 1 0 = 0 =
–   Igel 2.4.0 64-bit3068+21
−21		(+79)4 − 10
(+0−6=8)		28.6%
4.0 / 14
0.0%
−47
0 = 0 = 0 0 = = 0 = = = 0 =
–   ChessBrainVB 3.743065+15
−15		(+76)5.5 − 8.5
(+2−5=7)		39.3%
5.5 / 14
0.0%
+9
= = = 0 0 1 0 = = 1 0 = 0 =
–   Igel 2.3.1 64-bit3056+23
−23		(+67)5 − 5
(+2−2=6)		50.0%
5.0 / 10
0.0%
+63
1 = = 1 0 = 0 = = =
–   Minic 2.46 64-bit3055+22
−22		(+66)9.5 − 10.5
(+6−7=7)		47.5%
9.5 / 20
0.0%
+48
0 = 0 0 0 1 = = 1 0 = 1 1 = 1 1 0 0 = =
–   chess22k 1.12 64-bit3048+16
−16		(+59)3.5 − 8.5
(+2−7=3)		29.2%
3.5 / 12
0.0%
−89
1 0 = 0 0 = = 0 0 0 0 1
–   ChessBrainVB 3.703043+23
−23		(+54)9.5 − 4.5
(+7−2=5)		67.9%
9.5 / 14
0.0%
+172
1 1 1 1 = 1 = = 1 0 = 1 0 =
–   iCE 3.0 64-bit3040+11
−11		(+51)6 − 4
(+2−0=8)		60.0%
6.0 / 10
0.0%
+100
= = 1 = = = = 1 = =
–   Demolito 2019-07-15 64-bit3034+22
−23		(+45)6 − 4
(+3−1=6)		60.0%
6.0 / 10
0.1%
+100
1 1 0 = = = = 1 = =
–   Rybka 4 32-bit3017+14
−15		(+28)13.5 − 21.5
(+2−10=23)
38.6%
13.5 / 35
0.5%
−33
0 = 0 = 0 = 0 0 = = = 0 = 1 = = = = 0 = = = 0 = = = = 0 1 = = = 0 = =
–   Pedone 1.7 64-bit3012+17
−16		(+23)5.5 − 6.5
(+3−4=5)		45.8%
5.5 / 12
2.6%
0
= 1 0 = 0 0 = 1 = = 0 1
–   Monolith 2 64-bit3004+17
−17		(+15)6.5 − 7.5
(+2−3=9)		46.4%
6.5 / 14
10.5%
−5
0 = 1 = = = = 1 = 0 0 = = =
–   Ethereal 9.30 64-bit3003+25
−26		(+14)3.5 − 6.5
(+1−4=5)		35.0%
3.5 / 10
17.7%
−76
0 = = = 0 1 0 = = 0
–   Vajolet2 2.5 64-bit3000+18
−18		(+11)7.5 − 4.5
(+4−1=7)		62.5%
7.5 / 12
18.0%
+79
= = 1 = 0 1 1 1 = = = =
–   Minic 2.33 64-bit2995+27
−27		(+6)5 − 7
(+3−5=4)		41.7%
5.0 / 12
35.8%
−50
1 0 = = 1 0 1 = = 0 0 0
–   Pirarucu 3.2.4 64-bit2994+22
−22		(+5)4 − 4
(+2−2=4)		50.0%
4.0 / 8
36.5%
+10
= 0 = 0 1 = = 1
–   Rodent IV 022 64-bit2989+22
−22		(0)7 − 7
(+4−4=6)		50.0%
7.0 / 14
51.3%
+3
= 0 = 0 = = 0 1 1 = 0 1 = 1
–   chess22k 1.11 64-bit2989+20
−20		(0)7.5 − 6.5
(+4−3=7)		53.6%
7.5 / 14
52.1%
+22
= 1 0 1 = = 0 = = = = 1 0 1
–   Deuterium 2019.2.37.73 64-bit2981+15
−15		(−8)9 − 11
(+5−7=8)		45.0%
9.0 / 20
76.4%
−39
= = = = 0 = = 1 = 1 0 0 0 = 0 1 1 1 0 0
–   Pedone 1.6 64-bit2976+19
−19		(−13)6 − 4
(+3−1=6)		60.0%
6.0 / 10
84.3%
+38
0 1 = = = = 1 = 1 =
–   Alfil 15.8 64-bit2963+16
−17		(−26)6 − 4
(+3−1=6)		60.0%
6.0 / 10
98.7%
+25
1 = = = = 0 = 1 1 =
–   Fizbo 1.6 64-bit2963+28
−28		(−26)4 − 6
(+1−3=6)		40.0%
4.0 / 10
94.2%
−81
0 = = 0 1 0 = = = =
–   Naum 4.2 32-bit2958+10
−10		(−31)19.5 − 14.5
(+11−6=17)
57.4%
19.5 / 34
99.9%
+12
= = = 1 = = = = = 1 = = 1 = 0 1 0 = 0 = = = = 0 0 1 1 1 1 1 1 1 0 =
–   Shredder 12 32-bit2928+8
−7		(−61)40 − 24
(+24−8=32)
62.5%
40.0 / 64
100.0%
+12
= 0 0 = = 0 1 1 0 = = 1 = = 1 1 1 = = = 0 1 = 1 = 1 = 1 = 1 = 1 1 = 1 1 = = 1 = = 1 1 = 1 = 1 = = = = 0 1 1 = = 1 0 = = 0 1 = =
–   Critter 0.80 32-bit2924+15
−15		(−65)24 − 18
(+12−6=24)
57.1%
24.0 / 42
100.0%
−23
= = = 1 0 = = 1 0 1 = 1 = = 1 = = = 1 = = 0 = = 1 = 1 = = 0 = = 0 = 1 1 = = 1 1 0 =
–   Bobcat 8.0 64-bit2923+13
−13		(−66)7 − 3
(+5−1=4)		70.0%
7.0 / 10
100.0%
+63
= = 1 1 1 0 = 1 1 =
–   Rybka 2.3.2a 32-bit2912+9
−9		(−77)17.5 − 12.5
(+7−2=21)
58.3%
17.5 / 30
100.0%
−29
1 = = = 1 = = = = = 0 0 = = 1 = 1 = = = = = 1 = 1 = 1 = = =
–   Komodo 1.2 32-bit2896+14
−14		(−93)24.5 − 13.5
(+12−1=25)
64.5%
24.5 / 38
100.0%
−14
1 = 1 = = = = = 1 1 = = = 1 1 = = = = = 1 = 1 1 = 1 1 = = = = = = = 1 0 = =
–   Fritz 122886+11
−11		(−103)25 − 9
(+17−1=16)
73.5%
25.0 / 34
100.0%
+43
= 1 1 = = = = = 1 = 1 = = 1 = 1 = = 1 1 1 = 1 1 1 1 1 = 1 = 0 1 1 =
–   Gull 1.0a 32-bit2885+12
−12		(−104)23.5 − 10.5
(+14−1=19)
69.1%
23.5 / 34
100.0%
+5
= = 1 = 0 1 = = = = = 1 1 1 1 1 1 = = 1 = 1 = = = 1 = 1 = = 1 = = 1
–   Critter 0.70 32-bit2877+19
−19		(−112)20.5 − 9.5
(+12−1=17)
68.3%
20.5 / 30
100.0%
−3
= 1 = = 1 = 1 = 1 = 0 = 1 1 1 = 1 = 1 = = = 1 = = 1 = 1 = =
–   Hiarcs 13.12874+14
−14		(−115)19 − 11
(+13−5=12)
63.3%
19.0 / 30
100.0%
−30
= 1 = 1 1 0 1 1 1 = 1 1 0 1 = = = = 1 = = = 1 0 0 1 1 = 0 =
–   Gull 0.12a 32-bit2870+21
−21		(−119)28 − 11
(+21−4=14)
71.8%
28.0 / 39
100.0%
+22
1 = = = 1 = 0 = 0 = = 1 1 1 1 1 1 = 1 1 1 = 1 1 0 = 1 1 0 1 = 1 1 1 1 = = = 1
–   Thinker 5.4d Inert 32-bit2856+10
−10		(−133)26 − 12
(+16−2=20)
68.4%
26.0 / 38
100.0%
−24
1 = = 1 = 1 = = 1 1 = 1 1 = = = 1 1 = = 1 = 0 = = = = 1 1 1 = 1 = 1 = = 1 0
–   Gull 0.11a 32-bit2847+21
−21		(−142)24 − 8
(+17−1=14)
75.0%
24.0 / 32
100.0%
+18
1 = 1 = = 1 1 = 1 1 = = = = 1 = 0 = = 1 1 = 1 1 = 1 1 1 1 1 = 1
–   Deep Junior 11.1a 32-bit2831+17
−17		(−158)19 − 11
(+13−5=12)
63.3%
19.0 / 30
100.0%
−73
= 1 0 1 1 1 = = = = = 1 1 = 1 = 0 0 = = = 1 1 1 0 1 0 1 1 =
–   Protector 1.3.5 32-bit2828+15
−15		(−161)31 − 7
(+24−0=14)
81.6%
31.0 / 38
100.0%
+52
= 1 = 1 1 1 1 1 = = = 1 1 = = = = = 1 1 1 1 1 = 1 1 1 = 1 1 = 1 1 = 1 1 1 1
–   Grapefruit 1.0 32-bit2826+9
−9		(−163)23 − 7
(+16−0=14)
76.7%
23.0 / 30
100.0%
+1
1 1 1 1 1 = 1 1 = = 1 = = 1 = = = = = 1 = 1 1 1 = 1 = = 1 1
–   Deep Sjeng WC2008 32-bit2825+12
−12		(−164)21 − 9
(+16−4=10)
70.0%
21.0 / 30
100.0%
−31
1 0 1 1 1 0 1 1 1 1 1 = = 0 = 1 = 1 = = 1 1 = 0 = 1 1 = 1 =
–   Booot 5.02824+15
−15		(−165)26 − 8
(+19−1=14)
76.5%
26.0 / 34
100.0%
+2
1 = = 1 = = 1 1 1 = 1 = 1 = = 1 1 1 1 1 1 = 1 = 1 = 1 = = 1 0 1 = 1
–   Protector 1.3.4 32-bit2824+15
−15		(−165)21 − 9
(+13−1=16)
70.0%
21.0 / 30
100.0%
−47
1 1 = = = = = = 1 1 = 1 1 = = 1 1 1 = 1 = = = 1 0 = 1 = = 1
–   Cyclone xTreme2823+13
−13		(−166)25.5 − 4.5
(+22−1=7)
85.0%
25.5 / 30
100.0%
+103
1 = = 1 1 1 1 1 1 1 1 = = 1 1 0 = 1 1 1 = 1 1 = 1 1 1 1 1 1
–   Spark 0.4 32-bit2821+16
−16		(−168)30 − 8
(+22−0=16)
78.9%
30.0 / 38
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 =
–   Deep Junior 11.2 32-bit2816+21
−21		(−173)22 − 8
(+17−3=10)
73.3%
22.0 / 30
100.0%
−16
1 0 = 1 1 1 = 1 = 1 1 = 1 = 1 = = 1 1 0 1 = = = 1 0 1 1 1 1
–   Hannibal 1.0a 32-bit2800+12
−12		(−189)30.5 − 7.5
(+23−0=15)
80.3%
30.5 / 38
100.0%
+10
= 1 1 1 1 1 = 1 1 = 1 = 1 = = = 1 1 1 = 1 1 = 1 1 = 1 = 1 1 1 = = 1 1 = = 1
–   Bright 0.5c2778+12
−12		(−211)23.5 − 6.5
(+17−0=13)
78.3%
23.5 / 30
100.0%
−30
1 1 1 1 1 = 1 1 = = = 1 = 1 1 = 1 = 1 = = 1 = 1 1 1 = = 1 =
–   Loop 13.6 (Loop 2007) 32-bit2773+10
−10		(−216)22 − 8
(+14−0=16)
73.3%
22.0 / 30
100.0%
−77
= = = = = = 1 = = = 1 1 1 = 1 1 1 1 1 = = 1 = 1 1 = 1 = 1 =
–   MinkoChess 1.0 32-bit2744+32
−32		(−245)6 − 2
(+4−0=4)		75.0%
6.0 / 8
100.0%
−95
= = = 1 = 1 1 1
–   Chronos 1.9.9 32-bit2740+17
−17		(−249)7.5 − 0.5
(+7−0=1)		93.8%
7.5 / 8
100.0%
+163
= 1 1 1 1 1 1 1
–   Bison 9.11 32-bit2727+14
−14		(−262)2 − 2
(+0−0=4)		50.0%
2.0 / 4
100.0%
−262
= = = =
–   Booot 4.15.12696+30
−30		(−293)3.5 − 0.5
(+3−0=1)		87.5%
3.5 / 4
100.0%
−4
1 1 1 =
–   Scorpio 2.6 32-bit2693+31
−31		(−296)3.5 − 0.5
(+3−0=1)		87.5%
3.5 / 4
100.0%
−7
1 1 = 1
1172 games: 478 wins, 137 losses, 557 draws (47.5%), score: 64.5%

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Created in 2005-2013 by CCRL team
Last games added on February 28, 2021