CCRL 40/15
Downloads and Statistics
April 12, 2021
Testing summary:
Total: 1'235'231 games
played by 2'819 programs

White wins: 423'584 (34.3%)
Black wins: 311'244 (25.2%)
Draws: 500'403 (40.5%)
White score: 54.5%

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Stockfish 1.7.1 32-bit (2976+16
−16		)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 124 Stockfish versions we tested: Compare them!
OpponentEloDiffResultsScoreLOSPerf
–   Demolito 2020-05-14 64-bit3089+19
−19		(+113)5.5 − 14.5
(+3−12=5)		27.5%
5.5 / 20
0.0%
−49
0 0 1 0 0 = 0 = = 0 0 0 0 = 0 1 0 1 = 0
–   ChessBrainVB 3.723061+15
−15		(+85)7.5 − 8.5
(+4−5=7)		46.9%
7.5 / 16
0.0%
+66
1 0 = 0 = = = 1 1 0 = 1 0 = 0 =
–   Fizbo 1.7 64-bit3060+21
−21		(+84)5 − 5
(+2−2=6)		50.0%
5.0 / 10
0.0%
+91
= = = 1 = 1 = 0 = 0
–   Vajolet2 2.6 64-bit3059+15
−15		(+83)8.5 − 11.5
(+3−6=11)		42.5%
8.5 / 20
0.0%
+41
0 = = = = = = 1 = = 0 0 0 0 = 1 = = 1 0
–   Protector 1.8.0 64-bit3037+17
−17		(+61)5 − 5
(+3−3=4)		50.0%
5.0 / 10
0.0%
+52
1 = 1 1 0 = 0 = 0 =
–   ChessBrainVB 3.683024+21
−21		(+48)7 − 7
(+3−3=8)		50.0%
7.0 / 14
0.0%
+48
1 = = 0 0 1 = = 1 = = = = 0
–   Rybka 4 32-bit3017+15
−15		(+41)24.5 − 29.5
(+10−15=29)
45.4%
24.5 / 54
0.0%
+13
= = 0 = 1 = 0 1 = 0 0 = 0 = 0 = = 0 1 0 = 0 1 = = 1 0 = 0 0 1 1 = = = 1 = = 0 1 = 0 = = 0 = = = = = = = 1 =
–   Pirarucu 3.3.5 64-bit3015+16
−16		(+39)4.5 − 11.5
(+0−7=9)		28.1%
4.5 / 16
0.0%
−89
0 = 0 = 0 = = 0 0 0 = = = = 0 =
–   Pirarucu 3.0.7 64-bit3013+19
−19		(+37)6.5 − 9.5
(+2−5=9)		40.6%
6.5 / 16
0.2%
−14
0 = = = 0 1 = = = 1 0 0 = 0 = =
–   Marvin 3.6.0 64-bit3011+21
−21		(+35)7 − 5
(+3−1=8)		58.3%
7.0 / 12
0.4%
+79
= = 0 = = = = 1 = = 1 1
–   Texel 1.05 64-bit3008+15
−15		(+32)6 − 4
(+4−2=4)		60.0%
6.0 / 10
0.2%
+99
1 1 = 0 0 1 = = = 1
–   Andscacs 0.82 64-bit3008+24
−24		(+32)3 − 7
(+1−5=4)		30.0%
3.0 / 10
1.6%
−98
= 0 0 = 0 1 0 = 0 =
–   Topple 0.8.0 64-bit3006+23
−23		(+30)6.5 − 7.5
(+1−2=11)		46.4%
6.5 / 14
1.6%
+11
= = = = = = 0 = 0 = = = = 1
–   Andscacs 0.81 64-bit3006+25
−24		(+30)4 − 6
(+1−3=6)		40.0%
4.0 / 10
1.9%
−28
0 = 0 1 = = 0 = = =
–   Winter 0.7 64-bit3002+17
−17		(+26)9 − 7
(+5−3=8)		56.3%
9.0 / 16
1.3%
+58
1 = = = = = 0 1 1 0 1 = 1 = 0 =
–   Rybka 3 32-bit2995+12
−12		(+19)13 − 17
(+3−7=20)
43.3%
13.0 / 30
2.3%
−17
= = 0 = 1 = = 0 = = 0 = = = = = 0 = = 0 = = = 0 = 0 = 1 = 1
–   Bagatur 2.0 64-bit2992+23
−23		(+16)6.5 − 7.5
(+4−5=5)		46.4%
6.5 / 14
13.4%
−5
0 1 0 0 = 1 1 = 0 0 = 1 = =
–   Igel 2.3.0 64-bit2987+27
−27		(+11)7.5 − 10.5
(+3−6=9)		41.7%
7.5 / 18
24.4%
−34
= = = 0 0 0 = 0 0 1 = 1 = = 0 = = 1
–   Topple 0.7.5 64-bit2983+17
−17		(+7)8 − 6
(+4−2=8)		57.1%
8.0 / 14
28.9%
+50
= 0 = 1 1 = 1 = = 1 = 0 = =
–   RubiChess 1.3 64-bit2981+21
−21		(+5)7.5 − 4.5
(+5−2=5)		62.5%
7.5 / 12
36.5%
+82
1 = = = 1 0 = 1 1 = 0 1
–   Godel 7.0 64-bit2979+17
−17		(+3)7.5 − 4.5
(+5−2=5)		62.5%
7.5 / 12
38.7%
+76
0 = 1 1 = = 1 = 0 = 1 1
–   Pirarucu 2.9.5 64-bit2966+19
−19		(−10)11 − 3
(+8−0=6)		78.6%
11.0 / 14
78.9%
+169
1 1 = 1 1 = = = 1 = 1 1 1 =
–   Andscacs 0.80 64-bit2960+25
−25		(−16)6 − 4
(+4−2=4)		60.0%
6.0 / 10
85.0%
+46
= 1 0 1 0 = = = 1 1
–   SmarThink 1.90 64-bit2958+30
−30		(−18)6 − 4
(+4−2=4)		60.0%
6.0 / 10
85.7%
+48
= 1 = 1 0 1 0 1 = =
–   Naum 4.2 32-bit2958+10
−10		(−18)17 − 15
(+7−5=20)
53.1%
17.0 / 32
97.3%
+1
1 1 = = = 0 = = 1 = = = 1 0 = = = = 0 = 0 = 1 0 1 = = = = = 1 =
–   Pedone 1.4.1 64-bit2956+20
−20		(−20)5.5 − 4.5
(+3−2=5)		55.0%
5.5 / 10
94.1%
+11
0 1 1 = = = = 1 = 0
–   chess22k 1.10 64-bit2955+18
−18		(−21)4.5 − 3.5
(+2−1=5)		56.3%
4.5 / 8
96.1%
+15
= = 0 1 = 1 = =
–   Pedone 1.5 64-bit2954+21
−21		(−22)5 − 5
(+1−1=8)		50.0%
5.0 / 10
95.2%
−25
0 = 1 = = = = = = =
–   chess22k 1.9 64-bit2951+22
−22		(−25)5 − 7
(+3−5=4)		41.7%
5.0 / 12
96.8%
−80
= 0 0 0 1 1 0 = = 1 0 =
–   Shredder 12 32-bit2929+7
−7		(−47)23.5 − 8.5
(+15−0=17)
73.4%
23.5 / 32
100.0%
+91
1 1 = 1 1 = = 1 = 1 = = = = 1 1 1 1 = = = = 1 = 1 = 1 1 = = = 1
–   Rybka 2.3.2a 32-bit2912+9
−9		(−64)17 − 13
(+6−2=22)
56.7%
17.0 / 30
100.0%
−29
= = = 1 = = 1 = = = = = = = = = = = = 0 = = = = 1 1 1 0 1 =
–   Koivisto 3.0 64-bit2898+26
−26		(−78)4 − 6
(+1−3=6)		40.0%
4.0 / 10
100.0%
−137
0 = = = 1 = 0 0 = =
–   Komodo 1.2 32-bit2896+14
−14		(−80)19.5 − 16.5
(+11−8=17)
54.2%
19.5 / 36
100.0%
−52
= 1 = 1 = 0 1 1 = 0 1 0 = 0 0 = 0 = 0 0 = = = 1 1 1 = = = = 1 = = 1 = 1
–   Fritz 122886+11
−11		(−90)22 − 9
(+14−1=16)
71.0%
22.0 / 31
100.0%
+34
1 = = = = 1 = 1 0 1 = 1 = 1 = = = 1 1 = = 1 = = 1 1 = 1 1 1 =
–   Critter 0.70 32-bit2877+19
−19		(−99)24 − 12
(+16−4=16)
66.7%
24.0 / 36
100.0%
+5
0 1 = 1 1 = 1 1 1 0 = = 1 1 = = = 1 = 1 1 1 = 1 = = = = 0 1 0 1 = = 1 =
–   Hiarcs 13.12874+14
−14		(−102)21 − 11
(+14−4=14)
65.6%
21.0 / 32
100.0%
−5
1 0 0 = 1 1 = 1 = = = 1 0 = 1 1 = = = 1 = = = = 1 = 0 1 1 1 1 1
–   Komodo 1.0 32-bit2867+16
−16		(−109)22 − 12
(+12−2=20)
64.7%
22.0 / 34
100.0%
−25
= 1 = = 1 = 1 = 1 1 1 = 1 1 = = = = 1 = = = = 0 1 = = 0 1 1 = = = =
–   Thinker 5.4d Inert 32-bit2856+10
−10		(−120)25 − 14
(+15−4=20)
64.1%
25.0 / 39
100.0%
−39
1 = = = 1 1 1 1 0 1 1 = 1 1 1 = 1 = = = = 1 = = = = = 0 = 1 = 1 = 1 = 0 = = 0
–   Deep Junior 11.1a 32-bit2831+17
−17		(−145)18 − 12
(+11−5=14)
60.0%
18.0 / 30
100.0%
−84
= = 1 1 1 = = = = 0 1 = 0 0 1 1 1 1 0 = 0 1 = 1 = 1 = = = =
–   Critter 0.60 32-bit2830+23
−23		(−146)24.5 − 9.5
(+17−2=15)
72.1%
24.5 / 34
100.0%
−8
= 1 = 1 = = = = 1 1 = 1 = = = 1 = 1 1 1 = 1 = 1 1 1 0 1 = 1 1 = 0 1
–   Protector 1.3.5 32-bit2828+15
−15		(−148)21 − 14
(+11−4=20)
60.0%
21.0 / 35
100.0%
−89
= 1 = 1 = 1 = 1 = 1 = 0 1 = 0 1 = = = = = = 1 = 1 = 1 = = = = 0 = 0 1
–   Grapefruit 1.0 32-bit2826+9
−9		(−150)29 − 11
(+20−2=18)
72.5%
29.0 / 40
100.0%
−10
= 1 = 1 1 1 1 = = = 1 = 1 1 = 1 1 1 = 1 1 0 = = = 1 = = 1 = 1 1 = = 1 0 = = 1 1
–   Deep Sjeng WC2008 32-bit2825+12
−12		(−151)22 − 8
(+15−1=14)
73.3%
22.0 / 30
100.0%
−8
1 1 1 1 = 1 1 0 = 1 = = 1 = 1 = = = = 1 = = = = 1 1 1 1 1 =
–   Protector 1.3.4 32-bit2824+15
−15		(−152)26.5 − 8.5
(+18−0=17)
75.7%
26.5 / 35
100.0%
+6
= 1 = 1 1 = 1 1 = 1 1 1 = = = = 1 1 1 = 1 = 1 = 1 = = = 1 = 1 = 1 1 =
–   Spark 0.4 32-bit2821+16
−16		(−155)26 − 8
(+18−0=16)
76.5%
26.0 / 34
100.0%
+8
1 = = 1 1 1 = = 1 1 1 = = = 1 1 1 1 = = = 1 = 1 = = 1 1 1 1 = = = 1
–   Hiarcs 12.12817+11
−11		(−159)24.5 − 5.5
(+20−1=9)
81.7%
24.5 / 30
100.0%
+66
1 0 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		(−160)22 − 10
(+16−4=12)
68.8%
22.0 / 32
100.0%
−35
1 = 1 1 = 1 = 1 1 0 = = = 1 1 1 = 0 0 0 = = 1 1 1 1 = 1 = = 1 1
–   Spark 0.3a 32-bit2799+17
−17		(−177)23 − 11
(+14−2=18)
67.6%
23.0 / 34
100.0%
−74
1 = 1 = = = 0 1 = 1 0 = 1 = 1 = 1 1 = = 1 1 = = = 1 1 1 = = 1 = = =
–   Spark 0.3 32-bit2797+16
−16		(−179)23.5 − 6.5
(+18−1=11)
78.3%
23.5 / 30
100.0%
+9
1 0 = 1 1 1 1 1 1 1 = = = 1 = = 1 1 1 = 1 = = 1 1 = 1 1 = 1
–   Onno 1.2.70 32-bit2786+18
−18		(−190)25 − 5
(+20−0=10)
83.3%
25.0 / 30
100.0%
+41
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		(−198)25.5 − 4.5
(+22−1=7)
85.0%
25.5 / 30
100.0%
+71
1 1 1 1 1 1 = = 1 1 1 1 1 = 1 = 1 1 1 0 1 = 1 = = 1 1 1 1 1
–   Loop 13.6 (Loop 2007) 32-bit2773+9
−10		(−203)26 − 4
(+22−0=8)
86.7%
26.0 / 30
100.0%
+72
= = = 1 1 1 = 1 1 = 1 1 = 1 1 1 1 1 1 1 1 = 1 1 1 1 1 1 1 =
–   Spike 1.2 Turin2745+7
−7		(−231)22 − 8
(+15−1=14)
73.3%
22.0 / 30
100.0%
−83
1 = 1 1 1 0 1 1 1 = 1 = 1 = 1 = 1 = 1 = = = 1 = = 1 1 = = =
–   Twisted Logic 20100131x 32-bit2736+18
−18		(−240)32 − 6
(+26−0=12)
84.2%
32.0 / 38
100.0%
+3
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
–   Bison 9.11 32-bit2728+14
−14		(−248)58 − 10
(+51−3=14)
85.3%
58.0 / 68
100.0%
+31
= 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 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
–   Booot 4.15.12696+30
−30		(−280)6 − 2
(+4−0=4)		75.0%
6.0 / 8
100.0%
−130
= 1 1 1 = = 1 =
–   Crafty 23.2 32-bit2695+32
−32		(−281)4 − 0
(+4−0=0)		100.0%
4.0 / 4
100.0%
+INF
1 1 1 1
–   Delfi 5.42689+12
−12		(−287)3.5 − 0.5
(+3−0=1)		87.5%
3.5 / 4
100.0%
−3
= 1 1 1
–   Scorpio 2.5 32-bit2663+32
−32		(−313)3.5 − 0.5
(+3−0=1)		87.5%
3.5 / 4
100.0%
−24
1 1 = 1
1344 games: 553 wins, 171 losses, 620 draws (46.1%), score: 64.2%

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Created in 2005-2013 by CCRL team
Last games added on April 12, 2021