CCRL 40/40
Downloads and Statistics
July 11, 2019
Testing summary:
Total: 1'066'603 games
played by 2'494 programs
145750 CPU days (X2 4600+)

White wins: 370'641 (34.7%)
Black wins: 275'905 (25.9%)
Draws: 420'057 (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
= = 0 = = 0 = 1 0 0 = = = =
–   SmarThink 1.98 64-bit3027+13
−13
(+129)3 − 11
(+1−9=4)
21.4%
3.0 / 14
0.0%
−73
0 1 0 0 0 0 0 0 = = 0 = = 0
–   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
−26
(+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
0 0 = = = 0 = 1 = 1 1 0 =
–   Defenchess (SCTR) 1.1f 64-bit2997+12
−12
(+99)1.5 − 0.5
(+1−0=1)
75.0%
1.5 / 2
0.0%
+256
1 =
–   Sting SF 9 64-bit2995+17
−17
(+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
–   SmarThink 1.97 64-bit2995+15
−15
(+97)0.5 − 1.5
(+0−1=1)
25.0%
0.5 / 2
0.0%
−60
= 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-bit2982+14
−15
(+84)0.5 − 2.5
(+0−2=1)
16.7%
0.5 / 3
0.0%
−143
0 0 =
–   Chiron 1.1a 64-bit2979+14
−13
(+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
0 1 0 1
–   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+12
−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-bit2930+11
−11
(+32)0.5 − 1.5
(+0−1=1)
25.0%
0.5 / 2
0.5%
−125
= 0
–   chess22k 1.8 64-bit2930+21
−21
(+32)14 − 20
(+3−9=22)
41.2%
14.0 / 34
1.6%
−19
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
2.7%
−42
= 0 = =
–   Cheng 4.39 64-bit2920+11
−11
(+22)0.5 − 1.5
(+0−1=1)
25.0%
0.5 / 2
3.8%
−120
= 0
–   Deep Junior Yokohama 64-bit2919+15
−14
(+21)0.5 − 1.5
(+0−1=1)
25.0%
0.5 / 2
6.0%
−136
0 =
–   Demolito 2018-03-01 64-bit2909+17
−17
(+11)6 − 12
(+2−8=8)
33.3%
6.0 / 18
20.8%
−92
1 0 = 0 = = = = 0 0 0 = 0 = = 0 1 0
–   Amoeba 2.7 64-bit2905+15
−15
(+7)7 − 9
(+2−4=10)
43.8%
7.0 / 16
31.3%
−29
= 1 0 0 = 0 1 = = = = 0 = = = =
–   Toga II 4.0 64-bit2904+14
−13
(+6)2.5 − 1.5
(+1−0=3)
62.5%
2.5 / 4
33.0%
+65
= = = 1
–   Atlas 3.91 64-bit2899+14
−14
(+1)10.5 − 5.5
(+6−1=9)
65.6%
10.5 / 16
48.3%
+88
= 1 0 = 1 = 1 = 1 = = = = = 1 1
–   EXchess 7.97b 64-bit2892+12
−13
(−6)9.5 − 10.5
(+4−5=11)
47.5%
9.5 / 20
67.6%
−15
= 1 = 0 = = 1 = 0 = 0 0 = 0 1 = 1 = = =
–   Demolito 2017-08-26 64-bit2889+20
−20
(−9)11 − 9
(+4−2=14)
55.0%
11.0 / 20
72.6%
+15
1 = = 0 1 = = 1 = 0 = = = = = = = = = 1
–   Octochess r5506 64-bit 4CPU2887+21
−21
(−11)18.5 − 11.5
(+11−4=15)
61.7%
18.5 / 30
76.7%
+57
= = = = = 1 = 0 1 = 1 = 1 1 1 = = 0 1 1 0 = = = 0 1 1 = = 1
–   Ethereal 8.62 64-bit2884+24
−24
(−14)9.5 − 7.5
(+4−2=11)
55.9%
9.5 / 17
81.4%
+17
= = = 1 0 = 1 0 1 = = = = = 1 = =
–   Scorpio 2.8 64-bit2884+14
−14
(−14)3 − 1
(+2−0=2)
75.0%
3.0 / 4
85.8%
+136
= = 1 1
–   Quazar 0.4 32-bit2878+12
−12
(−20)8.5 − 7.5
(+6−5=5)
53.1%
8.5 / 16
94.3%
+2
0 1 1 = 0 0 = = 0 1 0 1 = 1 1 =
–   Protector 1.4.0 32-bit2877+11
−11
(−21)7.5 − 8.5
(+4−5=7)
46.9%
7.5 / 16
95.4%
−44
= 0 = 1 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
97.7%
+36
0 0 1 = = 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
97.6%
+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-bit2855+15
−15
(−43)13.5 − 6.5
(+11−4=5)
67.5%
13.5 / 20
99.9%
+77
0 1 = 1 = 1 1 1 = 1 1 1 1 0 = 0 1 1 = 0
–   Naum 3 32-bit2851+18
−18
(−47)9 − 7
(+6−4=6)
56.3%
9.0 / 16
100.0%
−6
1 = 1 = 1 0 0 1 0 1 = 0 = 1 = =
–   Tornado 8.0 64-bit2842+14
−14
(−56)11.5 − 8.5
(+8−5=7)
57.5%
11.5 / 20
100.0%
−5
= = 0 1 = 1 1 0 1 = 1 1 0 0 1 = 1 = = 0
–   The Baron 3.41 64-bit2836+22
−22
(−62)8 − 8
(+4−4=8)
50.0%
8.0 / 16
100.0%
−54
1 = 0 0 1 = 1 = 0 = = = 0 = 1 =
–   Fruit Reloaded 3.2.1 64-bit2832+13
−13
(−66)2 − 2
(+0−0=4)
50.0%
2.0 / 4
100.0%
−66
= = = =
–   Tucano 7.00 64-bit2823+19
−19
(−75)11.5 − 4.5
(+8−1=7)
71.9%
11.5 / 16
100.0%
+66
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-bit2795+15
−15
(−103)3.5 − 0.5
(+3−0=1)
87.5%
3.5 / 4
100.0%
+186
1 1 1 =
–   Rhetoric 1.4.3 64-bit2794+13
−13
(−104)12 − 4
(+9−1=6)
75.0%
12.0 / 16
100.0%
+61
= 1 1 0 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 1 1 0 0 0 1 = = = 1 = = 0 1 1
–   RuyDos 1.0.27 64-bit2762+23
−23
(−136)7.5 − 8.5
(+4−5=7)
46.9%
7.5 / 16
100.0%
−151
= = 1 = 1 1 0 = = = 1 0 0 0 0 =

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Created in 2005-2013 by CCRL team
Last games added on July 11, 2019