CCRL 40/15
Downloads and Statistics
May 8, 2021
Testing summary:
Total: 1'242'291 games
played by 2'843 programs

White wins: 425'658 (34.3%)
Black wins: 312'703 (25.2%)
Draws: 503'930 (40.6%)
White score: 54.5%

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Stockfish 1.7.1 32-bit (2975+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 123 Stockfish versions we tested: Compare them!
OpponentEloDiffResultsScoreLOSPerf
–   Demolito 2020-05-14 64-bit3088+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 1 0 1 = 0 = 0 0 0
–   ChessBrainVB 3.723060+15
−15
(+85)7.5 − 8.5
(+4−5=7)
46.9%
7.5 / 16
0.0%
+66
= 1 0 = = 1 1 0 = 0 = = 1 0 0 =
–   Fizbo 1.7 64-bit3059+21
−21
(+84)5 − 5
(+2−2=6)
50.0%
5.0 / 10
0.0%
+91
= = = 1 = 1 = 0 = 0
–   Vajolet2 2.6 64-bit3058+15
−15
(+83)8.5 − 11.5
(+3−6=11)
42.5%
8.5 / 20
0.0%
+41
0 0 = 1 = = 1 0 = = = = = 1 = = 0 0 0 =
–   Protector 1.8.0 64-bit3036+17
−17
(+61)5 − 5
(+3−3=4)
50.0%
5.0 / 10
0.0%
+52
1 = 1 1 0 = 0 = 0 =
–   ChessBrainVB 3.683023+21
−21
(+48)7 − 7
(+3−3=8)
50.0%
7.0 / 14
0.0%
+48
= 0 1 = = 0 0 1 = = 1 = = =
–   Rybka 4 32-bit3016+15
−15
(+41)24.5 − 29.5
(+10−15=29)
45.4%
24.5 / 54
0.0%
+13
= 1 = = 0 1 0 = 0 = = 0 1 0 = 0 1 = = 1 0 = 0 0 1 1 = = = 0 = = 0 = = = 0 = 1 = 0 1 = 0 0 = = = = = = = 1 =
–   Pirarucu 3.3.5 64-bit3013+16
−16
(+38)4.5 − 11.5
(+0−7=9)
28.1%
4.5 / 16
0.0%
−90
0 = 0 = 0 = = 0 0 0 = = = = 0 =
–   Pirarucu 3.0.7 64-bit3012+19
−19
(+37)6.5 − 9.5
(+2−5=9)
40.6%
6.5 / 16
0.2%
−14
0 = = = = 0 = = 0 1 = = = 1 0 0
–   Marvin 3.6.0 64-bit3010+21
−21
(+35)7 − 5
(+3−1=8)
58.3%
7.0 / 12
0.4%
+79
= 1 = = 1 1 = = 0 = = =
–   Texel 1.05 64-bit3007+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-bit3006+24
−24
(+31)3 − 7
(+1−5=4)
30.0%
3.0 / 10
1.6%
−99
0 = 0 = = 0 0 = 0 1
–   Andscacs 0.81 64-bit3005+25
−24
(+30)4 − 6
(+1−3=6)
40.0%
4.0 / 10
2.0%
−28
0 = 0 1 = = 0 = = =
–   Topple 0.8.0 64-bit3004+21
−22
(+29)6.5 − 7.5
(+1−2=11)
46.4%
6.5 / 14
1.5%
+10
= = = = = = 0 = 0 = = = = 1
–   Winter 0.7 64-bit3001+17
−17
(+26)9 − 7
(+5−3=8)
56.3%
9.0 / 16
1.4%
+58
1 0 1 = 1 = 0 = 1 = = = = = 0 1
–   Rybka 3 32-bit2994+12
−12
(+19)13 − 17
(+3−7=20)
43.3%
13.0 / 30
2.3%
−17
= 0 = = 0 = = = = = 0 = = = 0 = 1 = = 0 = = = 0 = 0 = 1 = 1
–   Bagatur 2.0 64-bit2991+23
−23
(+16)6.5 − 7.5
(+4−5=5)
46.4%
6.5 / 14
13.6%
−5
0 1 0 0 = 1 1 = 0 0 = 1 = =
–   Igel 2.3.0 64-bit2986+27
−27
(+11)7.5 − 10.5
(+3−6=9)
41.7%
7.5 / 18
24.7%
−34
0 1 = 1 = = = = = 0 0 0 = 0 0 = = 1
–   Topple 0.7.5 64-bit2982+17
−17
(+7)8 − 6
(+4−2=8)
57.1%
8.0 / 14
29.3%
+50
= 0 = 1 1 = 1 = = 1 = 0 = =
–   Godel 7.0 64-bit2979+17
−17
(+4)7.5 − 4.5
(+5−2=5)
62.5%
7.5 / 12
37.4%
+77
1 1 = = 1 = 0 = 1 1 0 =
–   RubiChess 1.3 64-bit2979+21
−21
(+4)7.5 − 4.5
(+5−2=5)
62.5%
7.5 / 12
37.1%
+81
= 1 1 = 1 = = = 1 0 0 1
–   Pirarucu 2.9.5 64-bit2965+19
−19
(−10)11 − 3
(+8−0=6)
78.6%
11.0 / 14
79.4%
+169
1 1 = 1 1 = = = 1 = 1 1 1 =
–   Mr Bob 1.0.0 64-bit2961+29
−29
(−14)4.5 − 3.5
(+3−2=3)
56.3%
4.5 / 8
80.0%
+23
= 0 0 1 1 = 1 =
–   Andscacs 0.80 64-bit2959+25
−25
(−16)6 − 4
(+4−2=4)
60.0%
6.0 / 10
85.3%
+46
0 = = 1 0 1 = = 1 1
–   Naum 4.2 32-bit2957+10
−10
(−18)17 − 15
(+7−5=20)
53.1%
17.0 / 32
97.5%
+1
1 = = = 1 0 = = = = 0 = = = 1 1 = = = 0 0 = 1 0 1 = = = = = 1 =
–   SmarThink 1.90 64-bit2956+30
−30
(−19)6 − 4
(+4−2=4)
60.0%
6.0 / 10
86.0%
+47
= 1 = 1 0 1 0 1 = =
–   Pedone 1.4.1 64-bit2955+20
−20
(−20)5.5 − 4.5
(+3−2=5)
55.0%
5.5 / 10
94.4%
+11
0 1 1 = = = = 1 = 0
–   chess22k 1.10 64-bit2954+18
−18
(−21)4.5 − 3.5
(+2−1=5)
56.3%
4.5 / 8
96.3%
+15
= 1 = = = = 0 1
–   Pedone 1.5 64-bit2953+21
−21
(−22)5 − 5
(+1−1=8)
50.0%
5.0 / 10
95.5%
−25
= = = = 0 = 1 = = =
–   chess22k 1.9 64-bit2950+22
−22
(−25)5 − 7
(+3−5=4)
41.7%
5.0 / 12
97.0%
−80
= 0 0 0 1 1 0 = = 1 0 =
–   Shredder 12 32-bit2928+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-bit2911+9
−9
(−64)17 − 13
(+6−2=22)
56.7%
17.0 / 30
100.0%
−29
1 1 1 0 1 = = = = = = = = 0 = = = = = = = 1 = = 1 = = = = =
–   Koivisto 3.0 64-bit2899+25
−25
(−76)4 − 6
(+1−3=6)
40.0%
4.0 / 10
100.0%
−135
0 = = = 1 = 0 0 = =
–   Komodo 1.2 32-bit2895+14
−14
(−80)19.5 − 16.5
(+11−8=17)
54.2%
19.5 / 36
100.0%
−52
1 = 0 1 0 = 0 0 = 0 = = 1 = 1 = 0 1 = = = 1 0 0 1 1 = = = = 1 = = 1 = 1
–   Fritz 122885+11
−11
(−90)22 − 9
(+14−1=16)
71.0%
22.0 / 31
100.0%
+34
1 = 1 = = = = 1 = 1 0 1 = 1 = 1 = = = 1 1 = = 1 = = 1 1 = 1 1
–   Critter 0.70 32-bit2876+19
−19
(−99)24 − 12
(+16−4=16)
66.7%
24.0 / 36
100.0%
+5
1 1 = 1 1 1 0 = = 1 1 0 1 = = 1 = 1 1 1 = = = 1 = = = = 0 1 0 1 = = 1 =
–   Hiarcs 13.12873+14
−14
(−102)21 − 11
(+14−4=14)
65.6%
21.0 / 32
100.0%
−5
0 = 1 1 = 1 = = = 1 1 0 1 1 = = = 1 0 = = = = = 1 = 0 1 1 1 1 1
–   Komodo 1.0 32-bit2867+16
−16
(−108)22 − 12
(+12−2=20)
64.7%
22.0 / 34
100.0%
−24
1 = 1 1 = = = = 1 = = = = 0 1 = 1 = = 1 = 1 = 1 1 = = 0 1 1 = = = =
–   Thinker 5.4d Inert 32-bit2855+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 0 1 1 = 1 = 1 = 1 = 1 = 0 = = 0
–   Deep Junior 11.1a 32-bit2830+17
−17
(−145)18 − 12
(+11−5=14)
60.0%
18.0 / 30
100.0%
−84
= 0 1 = 0 0 1 1 1 1 0 = = = 1 1 1 = = = 0 1 = 1 = 1 = = = =
–   Critter 0.60 32-bit2829+23
−23
(−146)24.5 − 9.5
(+17−2=15)
72.1%
24.5 / 34
100.0%
−8
= 1 1 = 0 1 1 1 = 1 = 1 1 1 0 1 = 1 = 1 = = = = 1 1 = 1 = = = 1 = 1
–   Protector 1.3.5 32-bit2827+15
−15
(−148)21 − 14
(+11−4=20)
60.0%
21.0 / 35
100.0%
−89
= = 0 1 = 1 = = = = 0 = 0 1 = = = = = = 1 = 1 = 1 = 1 = 1 = 1 = 1 0 1
–   Grapefruit 1.0 32-bit2825+9
−9
(−150)29 − 11
(+20−2=18)
72.5%
29.0 / 40
100.0%
−10
1 1 1 = 1 1 0 = = = 1 = = 1 = 1 = = 1 1 = 1 1 1 1 = = = 1 = 1 1 = = 1 0 = = 1 1
–   Deep Sjeng WC2008 32-bit2824+12
−12
(−151)22 − 8
(+15−1=14)
73.3%
22.0 / 30
100.0%
−8
= 1 = = 1 = 1 = = = = 1 1 1 1 1 = 1 1 0 = = = = 1 1 1 1 1 =
–   Protector 1.3.4 32-bit2823+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-bit2820+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 12.12816+11
−11
(−159)24.5 − 5.5
(+20−1=9)
81.7%
24.5 / 30
100.0%
+66
= = 1 1 1 1 = = = = 1 1 1 0 1 = 1 1 = 1 1 1 1 1 1 1 1 1 1 =
–   Deep Junior 11.2 32-bit2815+21
−21
(−160)22 − 10
(+16−4=12)
68.8%
22.0 / 32
100.0%
−35
= 1 1 1 = 0 0 0 = = 1 1 1 1 = 1 = = 1 1 1 = 1 1 = 1 = 1 1 0 = =
–   Spark 0.3a 32-bit2798+17
−17
(−177)23 − 11
(+14−2=18)
67.6%
23.0 / 34
100.0%
−74
= = 1 = = = = 1 1 = = 1 1 = = = 1 1 1 1 = 1 = = = 0 1 = 1 0 = 1 = 1
–   Spark 0.3 32-bit2796+16
−16
(−179)23.5 − 6.5
(+18−1=11)
78.3%
23.5 / 30
100.0%
+9
1 1 = 1 = = 1 1 1 = 1 = = 1 1 = 1 0 = 1 1 1 1 1 1 1 = = = 1
–   Onno 1.2.70 32-bit2785+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 0.5c2777+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 0 1 = 1 = = 1 1 1 1 1 1 1 = = 1 1 1 1 1 = 1 =
–   Loop 13.6 (Loop 2007) 32-bit2772+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 Turin2744+7
−7
(−231)22 − 8
(+15−1=14)
73.3%
22.0 / 30
100.0%
−83
1 = = = 1 = 1 = = = 1 = = 1 1 = 1 1 1 0 1 1 1 = 1 = 1 = 1 =
–   Twisted Logic 20100131x 32-bit2735+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-bit2727+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 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 0 1 1 = 1 1 0 = 1 = 1 1
–   Booot 4.15.12696+30
−30
(−279)6 − 2
(+4−0=4)
75.0%
6.0 / 8
100.0%
−129
= 1 = 1 = 1 = 1
–   Crafty 23.2 32-bit2695+32
−32
(−280)4 − 0
(+4−0=0)
100.0%
4.0 / 4
100.0%
+INF
1 1 1 1
–   Delfi 5.42689+12
−12
(−286)3.5 − 0.5
(+3−0=1)
87.5%
3.5 / 4
100.0%
−2
1 = 1 1
–   Scorpio 2.5 32-bit2662+32
−32
(−313)3.5 − 0.5
(+3−0=1)
87.5%
3.5 / 4
100.0%
−24
1 = 1 1

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Created in 2005-2013 by CCRL team
Last games added on May 8, 2021