CCRL 40/40
Downloads and Statistics
May 18, 2019
Testing summary:
Total: 1'044'560 games
played by 2'452 programs
143157 CPU days (X2 4600+)

White wins: 363'036 (34.8%)
Black wins: 270'297 (25.9%)
Draws: 411'227 (39.4%)
White score: 54.4%

Engine Details

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chess22k 1.7 64-bit (2898+22
−22
)Quote
Author: Sander Maassen vd Brink Link: github
This is one of the 11 chess22k versions we tested: Compare them!
OpponentEloDiffResultsScoreLOSPerf
–   Gull 3.1 64-bit3038+16
−16
(+140)4 − 12
(+1−9=6)
25.0%
4.0 / 16
0.0%
−23
0 0 = 0 0 = = = 0 0 0 0 1 0 = =
–   Arasan 20.4.1 64-bit3036+17
−16
(+138)3.5 − 14.5
(+0−11=7)
19.4%
3.5 / 18
0.0%
−65
= = = = 0 = 0 = 0 0 0 0 0 0 0 0 0 =
–   ChessBrainVB 3.663035+23
−23
(+137)5.5 − 8.5
(+1−4=9)
39.3%
5.5 / 14
0.0%
+80
= 1 0 0 = = = = = = 0 = = 0
–   SmarThink 1.98 64-bit3025+14
−13
(+127)3 − 11
(+1−9=4)
21.4%
3.0 / 14
0.0%
−75
= = 0 = = 0 0 0 0 0 0 0 0 1
–   Xiphos 0.2 64-bit3023+18
−18
(+125)9.5 − 20.5
(+2−13=15)
31.7%
9.5 / 30
0.0%
+15
0 = = 0 0 0 = 0 = 0 0 = = = 0 = 0 = = = 0 = 1 0 = 1 = 0 0 =
–   Pedone 1.7 64-bit3013+17
−17
(+115)5 − 9
(+0−4=10)
35.7%
5.0 / 14
0.0%
+36
0 = 0 = = = = = = = = 0 0 =
–   Naum 4.6 64-bit3012+12
−12
(+114)0.5 − 1.5
(+0−1=1)
25.0%
0.5 / 2
0.0%
−43
0 =
–   Ethereal 9.30 64-bit3004+25
−25
(+106)3 − 7
(+2−6=2)
30.0%
3.0 / 10
0.0%
−37
= 0 0 0 0 1 0 1 = 0
–   Vajolet2 2.5 64-bit3001+18
−18
(+103)6 − 7
(+3−4=6)
46.2%
6.0 / 13
0.0%
+87
= 1 0 = 0 = 1 = 1 0 0 = =
–   Defenchess (SCTR) 1.1f 64-bit2995+13
−13
(+97)1.5 − 0.5
(+1−0=1)
75.0%
1.5 / 2
0.0%
+254
1 =
–   SmarThink 1.97 64-bit2995+16
−15
(+97)0.5 − 1.5
(+0−1=1)
25.0%
0.5 / 2
0.0%
−60
= 0
–   Sting SF 9 64-bit2995+17
−18
(+97)3.5 − 12.5
(+2−11=3)
21.9%
3.5 / 16
0.0%
−120
= 0 0 0 0 = 0 0 1 0 = 0 0 0 1 0
–   ChessBrainVB 3.612987+27
−27
(+89)0 − 2
(+0−2=0)
0.0%
0.0 / 2
0.0%
−INF
0 0
–   Xiphos 0.1 64-bit2985+20
−20
(+87)8 − 22
(+2−16=12)
26.7%
8.0 / 30
0.0%
−62
0 0 = 0 0 0 = 1 0 = = = 0 = 0 0 = = 0 0 0 0 0 = 0 = = 1 = 0
–   Rodent III 0.238 64-bit2981+14
−15
(+83)0.5 − 2.5
(+0−2=1)
16.7%
0.5 / 3
0.0%
−144
0 0 =
–   Chiron 1.1a 64-bit2979+14
−14
(+81)7.5 − 8.5
(+3−4=9)
46.9%
7.5 / 16
0.0%
+64
= 0 1 = 0 = = = 1 = = 0 0 1 = =
–   Pedone 1.6 64-bit2976+19
−19
(+78)0.5 − 0.5
(+0−0=1)
50.0%
0.5 / 1
0.0%
+108
=
–   Vajolet2 2.4 64-bit2968+21
−21
(+70)1.5 − 0.5
(+1−0=1)
75.0%
1.5 / 2
0.0%
+227
= 1
–   Ethereal 9.00 64-bit2967+18
−18
(+69)2 − 2
(+2−2=0)
50.0%
2.0 / 4
0.0%
+69
1 1 0 0
–   Hiarcs 142961+10
−10
(+63)2 − 0
(+2−0=0)
100.0%
2.0 / 2
0.0%
+INF
1 1
–   Hakkapeliitta 3.0 64-bit2954+11
−12
(+56)0.5 − 1.5
(+0−1=1)
25.0%
0.5 / 2
0.0%
−101
0 =
–   Wasp 2.6 64-bit2946+13
−13
(+48)7.5 − 10.5
(+4−7=7)
41.7%
7.5 / 18
0.0%
−1
1 0 1 0 = 0 0 = 1 1 = 0 = = = 0 = 0
–   Deep Sjeng c't 20102941+10
−10
(+43)0 − 2
(+0−2=0)
0.0%
0.0 / 2
0.0%
−INF
0 0
–   Crafty 25.2 64-bit2929+11
−11
(+31)0.5 − 1.5
(+0−1=1)
25.0%
0.5 / 2
0.7%
−126
= 0
–   chess22k 1.8 64-bit2929+21
−21
(+31)14 − 20
(+3−9=22)
41.2%
14.0 / 34
1.7%
−20
0 = 0 1 0 = 0 = = = 0 = = = 1 = 0 = = = = = 0 = 0 1 = = = = = = 0 =
–   Bobcat 8.0 64-bit2923+13
−13
(+25)1.5 − 2.5
(+0−1=3)
37.5%
1.5 / 4
2.6%
−42
= = 0 =
–   Cheng 4.39 64-bit2921+11
−11
(+23)0.5 − 1.5
(+0−1=1)
25.0%
0.5 / 2
3.1%
−119
= 0
–   Deep Junior Yokohama 64-bit2919+15
−15
(+21)0.5 − 1.5
(+0−1=1)
25.0%
0.5 / 2
5.7%
−136
0 =
–   Demolito 2018-03-01 64-bit2909+17
−17
(+11)6 − 12
(+2−8=8)
33.3%
6.0 / 18
21.1%
−92
= 0 = = = = 0 0 0 = 0 = = 0 1 0 1 0
–   Toga II 4.0 64-bit2905+14
−14
(+7)2.5 − 1.5
(+1−0=3)
62.5%
2.5 / 4
29.2%
+66
= 1 = =
–   Amoeba 2.7 64-bit2903+15
−15
(+5)7 − 9
(+2−4=10)
43.8%
7.0 / 16
35.2%
−31
= 1 0 0 = 0 1 = = = = 0 = = = =
–   Atlas 3.91 64-bit2899+15
−15
(+1)10.5 − 5.5
(+6−1=9)
65.6%
10.5 / 16
46.3%
+88
1 = = = = = 1 1 0 = 1 = 1 = = 1
–   EXchess 7.97b 64-bit2893+13
−13
(−5)9.5 − 10.5
(+4−5=11)
47.5%
9.5 / 20
66.3%
−14
= = = 0 1 1 = 0 = 0 0 = 0 1 = 1 = = = =
–   Demolito 2017-08-26 64-bit2890+20
−20
(−8)11 − 9
(+4−2=14)
55.0%
11.0 / 20
72.3%
+16
1 = = 0 = = 1 = 0 = = = = = = = = = 1 1
–   Octochess r5506 64-bit 4CPU2887+21
−21
(−11)18.5 − 11.5
(+11−4=15)
61.7%
18.5 / 30
77.4%
+57
= = = = = 1 = 0 1 = 1 = 1 1 1 = = 0 1 1 0 = = = 0 1 1 = = 1
–   Scorpio 2.8 64-bit2886+15
−15
(−12)3 − 1
(+2−0=2)
75.0%
3.0 / 4
82.0%
+138
1 = 1 =
–   Ethereal 8.62 64-bit2884+24
−24
(−14)9.5 − 7.5
(+4−2=11)
55.9%
9.5 / 17
81.1%
+17
= = = 1 0 = 1 0 1 = = = = = 1 = =
–   Quazar 0.4 32-bit2879+12
−12
(−19)8.5 − 7.5
(+6−5=5)
53.1%
8.5 / 16
94.1%
+3
1 = 0 1 0 0 = = 0 1 0 1 = 1 1 =
–   Protector 1.4.0 32-bit2878+11
−11
(−20)7.5 − 8.5
(+4−5=7)
46.9%
7.5 / 16
95.0%
−43
= 1 = 0 0 0 = 1 = 1 = = 1 0 0 =
–   Rybka 1.2 32-bit2870+18
−18
(−28)9.5 − 6.5
(+7−4=5)
59.4%
9.5 / 16
97.6%
+36
1 = 0 0 = 0 1 1 0 1 1 = 1 = = 1
–   Scorpio 2.7.9 64-bit2865+25
−25
(−33)10.5 − 5.5
(+8−3=5)
65.6%
10.5 / 16
97.5%
+73
1 0 1 = 1 1 1 = = 1 = 0 1 = 0 1
–   Stockfish 1.5.1 32-bit2864+15
−15
(−34)9.5 − 6.5
(+7−4=5)
59.4%
9.5 / 16
99.5%
+32
1 = 1 0 1 = 1 = = 0 1 0 1 = 0 1
–   Dirty 30Apr2017 64-bit2856+15
−15
(−42)13.5 − 6.5
(+11−4=5)
67.5%
13.5 / 20
99.9%
+78
= 1 = 1 1 1 1 = 1 1 1 1 0 = 0 1 1 = 0 0
–   Naum 3 32-bit2850+18
−18
(−48)9 − 7
(+6−4=6)
56.3%
9.0 / 16
100.0%
−7
1 = 1 = 1 0 0 1 0 1 = 0 = 1 = =
–   Tornado 8.0 64-bit2843+14
−14
(−55)11.5 − 8.5
(+8−5=7)
57.5%
11.5 / 20
100.0%
−4
= 1 0 1 = = 1 0 1 = 1 1 0 0 1 = 1 = = 0
–   The Baron 3.41 64-bit2837+22
−22
(−61)8 − 8
(+4−4=8)
50.0%
8.0 / 16
100.0%
−53
1 = 0 0 1 = 1 = 0 = = = 0 = 1 =
–   Fruit Reloaded 3.2.1 64-bit2830+13
−13
(−68)2 − 2
(+0−0=4)
50.0%
2.0 / 4
100.0%
−68
= = = =
–   Tucano 7.00 64-bit2824+19
−19
(−74)11.5 − 4.5
(+8−1=7)
71.9%
11.5 / 16
100.0%
+67
1 = 1 = 1 = 1 = 0 = 1 1 = 1 1 =
–   GNU Chess 5.60 64-bit2810+17
−17
(−88)10 − 6
(+6−2=8)
62.5%
10.0 / 16
100.0%
−12
1 = 1 1 1 = 1 = = = = 0 1 0 = =
–   The Baron 3.42 64-bit2796+15
−15
(−102)3.5 − 0.5
(+3−0=1)
87.5%
3.5 / 4
100.0%
+187
1 = 1 1
–   Rhetoric 1.4.3 64-bit2794+12
−12
(−104)12 − 4
(+9−1=6)
75.0%
12.0 / 16
100.0%
+61
1 0 = 1 1 = 1 1 = 1 1 = 1 = 1 =
–   Octochess r5506 64-bit2781+16
−16
(−117)9.5 − 6.5
(+7−4=5)
59.4%
9.5 / 16
100.0%
−52
1 0 1 1 0 0 1 = = = 1 = = 0 1 1
–   RuyDos 1.0.27 64-bit2763+23
−23
(−135)7.5 − 8.5
(+4−5=7)
46.9%
7.5 / 16
100.0%
−150
1 = = = 1 1 0 = = = 1 0 0 0 0 =

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Created in 2005-2013 by CCRL team
Last games added on May 18, 2019