CCRL 40/15
Downloads and Statistics
May 15, 2021
Testing summary:
Total: 1'244'261 games
played by 2'847 programs

White wins: 426'196 (34.3%)
Black wins: 313'011 (25.2%)
Draws: 505'054 (40.6%)
White score: 54.5%

Engine Details

Options
Show each game results
chess22k 1.7 64-bit (2898+22
−22
)Quote
Author: Sander Maassen vd Brink Link: github
This is one of the 13 chess22k versions we tested: Compare them!
OpponentEloDiffResultsScoreLOSPerf
–   Gull 3.1 64-bit3039+15
−16
(+141)4 − 12
(+1−9=6)
25.0%
4.0 / 16
0.0%
−22
0 0 = 0 0 = = = 0 0 0 0 1 0 = =
–   Arasan 20.4.1 64-bit3035+16
−16
(+137)3.5 − 14.5
(+0−11=7)
19.4%
3.5 / 18
0.0%
−66
= = = = 0 = 0 = 0 0 0 0 0 0 0 0 0 =
–   ChessBrainVB 3.663034+23
−23
(+136)5.5 − 8.5
(+1−4=9)
39.3%
5.5 / 14
0.0%
+79
= 1 0 0 = = = = = = 0 = = 0
–   SmarThink 1.98 64-bit3025+13
−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-bit3022+18
−18
(+124)9.5 − 20.5
(+2−13=15)
31.7%
9.5 / 30
0.0%
+14
0 = = 0 0 0 = 0 = 0 0 = = = 0 = 0 = = = 0 = 1 0 = 1 = 0 0 =
–   Pedone 1.7 64-bit3012+17
−17
(+114)5 − 9
(+0−4=10)
35.7%
5.0 / 14
0.0%
+35
0 = 0 = = = = = = = = 0 = 0
–   Naum 4.6 64-bit3009+12
−12
(+111)0.5 − 1.5
(+0−1=1)
25.0%
0.5 / 2
0.0%
−46
0 =
–   Ethereal 9.30 64-bit3003+26
−25
(+105)3 − 7
(+2−6=2)
30.0%
3.0 / 10
0.0%
−38
0 1 0 1 = 0 = 0 0 0
–   Vajolet2 2.5 64-bit3000+18
−18
(+102)6 − 7
(+3−4=6)
46.2%
6.0 / 13
0.0%
+86
= 0 = 1 = 1 1 0 0 0 = = =
–   Sting SF 9 64-bit3000+16
−16
(+102)3.5 − 12.5
(+2−11=3)
21.9%
3.5 / 16
0.0%
−115
= 0 0 0 0 = 0 0 1 0 = 0 0 0 1 0
–   Defenchess 1.1f 64-bit2996+12
−12
(+98)1.5 − 0.5
(+1−0=1)
75.0%
1.5 / 2
0.0%
+255
1 =
–   SmarThink 1.97 64-bit2994+16
−16
(+96)0.5 − 1.5
(+0−1=1)
25.0%
0.5 / 2
0.0%
−61
= 0
–   ChessBrainVB 3.612986+27
−27
(+88)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+15
−15
(+83)0.5 − 2.5
(+0−2=1)
16.7%
0.5 / 3
0.0%
−144
0 0 =
–   Chiron 1.1a 64-bit2977+13
−13
(+79)7.5 − 8.5
(+3−4=9)
46.9%
7.5 / 16
0.0%
+62
= 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 0 1 0
–   Hiarcs 142960+10
−10
(+62)2 − 0
(+2−0=0)
100.0%
2.0 / 2
0.0%
+INF
1 1
–   Hakkapeliitta 3.0 64-bit2953+12
−12
(+55)0.5 − 1.5
(+0−1=1)
25.0%
0.5 / 2
0.0%
−102
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 20102940+10
−10
(+42)0 − 2
(+0−2=0)
0.0%
0.0 / 2
0.0%
−INF
0 0
–   Crafty 25.2 64-bit2931+11
−11
(+33)0.5 − 1.5
(+0−1=1)
25.0%
0.5 / 2
0.4%
−124
= 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+12
−13
(+25)1.5 − 2.5
(+0−1=3)
37.5%
1.5 / 4
2.6%
−42
0 = = =
–   Cheng 4.39 64-bit2919+10
−10
(+21)0.5 − 1.5
(+0−1=1)
25.0%
0.5 / 2
4.5%
−121
= 0
–   Deep Junior Yokohama 64-bit2918+14
−14
(+20)0.5 − 1.5
(+0−1=1)
25.0%
0.5 / 2
6.2%
−137
0 =
–   Demolito 2018-03-01 64-bit2909+17
−17
(+11)6 − 12
(+2−8=8)
33.3%
6.0 / 18
20.6%
−92
1 0 = 0 = = = = 0 0 0 = 0 = = 0 1 0
–   Toga II 4.0 64-bit2903+13
−13
(+5)2.5 − 1.5
(+1−0=3)
62.5%
2.5 / 4
34.1%
+64
= = = 1
–   Amoeba 2.7 64-bit2901+13
−13
(+3)7 − 9
(+2−4=10)
43.8%
7.0 / 16
41.2%
−33
= 1 0 0 = 0 1 = = = = 0 = = = =
–   Atlas 3.91 64-bit2898+13
−13
(0)10.5 − 5.5
(+6−1=9)
65.6%
10.5 / 16
50.6%
+87
0 = 1 = 1 = 1 = = = = = 1 1 = 1
–   EXchess 7.97b 64-bit2893+12
−12
(−5)9.5 − 10.5
(+4−5=11)
47.5%
9.5 / 20
64.7%
−14
= = 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
73.1%
+15
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
77.3%
+57
= = = = = 1 = 0 1 = 1 = 1 1 1 = = 0 1 1 0 = = = 0 1 1 = = 1
–   Scorpio 2.8 64-bit2885+14
−14
(−13)3 − 1
(+2−0=2)
75.0%
3.0 / 4
84.5%
+137
= 1 1 =
–   Ethereal 8.62 64-bit2884+24
−24
(−14)9.5 − 7.5
(+4−2=11)
55.9%
9.5 / 17
81.3%
+17
= = = 1 0 = 1 0 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
1 = 0 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
= 1 = 0 0 0 = 1 = 1 = = 1 0 0 =
–   Rybka 1.2 32-bit2868+17
−17
(−30)9.5 − 6.5
(+7−4=5)
59.4%
9.5 / 16
98.4%
+34
1 = 0 0 = 0 1 1 0 1 1 = 1 = = 1
–   Scorpio 2.7.9 64-bit2866+25
−25
(−32)10.5 − 5.5
(+8−3=5)
65.6%
10.5 / 16
97.4%
+74
1 0 1 = 1 1 1 = = 1 = 0 1 = 0 1
–   Stockfish 1.5.1 32-bit2863+15
−15
(−35)9.5 − 6.5
(+7−4=5)
59.4%
9.5 / 16
99.6%
+31
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 0 1 0 = 0 1 1 = 0
–   Naum 3 32-bit2851+17
−17
(−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+13
−13
(−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-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-bit2836+13
−13
(−62)2 − 2
(+0−0=4)
50.0%
2.0 / 4
100.0%
−62
= = = =
–   Tucano 7.00 64-bit2825+19
−19
(−73)11.5 − 4.5
(+8−1=7)
71.9%
11.5 / 16
100.0%
+68
1 = 1 = 1 = 1 = 0 = 1 1 = 1 1 =
–   GNU Chess 5.60 64-bit2814+16
−16
(−84)10 − 6
(+6−2=8)
62.5%
10.0 / 16
100.0%
−8
1 = 1 1 1 = 1 = = = = 0 1 0 = =
–   The Baron 3.42 64-bit2797+14
−14
(−101)3.5 − 0.5
(+3−0=1)
87.5%
3.5 / 4
100.0%
+188
1 1 = 1
–   Rhetoric 1.4.3 64-bit2793+12
−12
(−105)12 − 4
(+9−1=6)
75.0%
12.0 / 16
100.0%
+60
1 0 = 1 1 = 1 1 = 1 1 = 1 = 1 =
–   Octochess r5506 64-bit2784+15
−15
(−114)9.5 − 6.5
(+7−4=5)
59.4%
9.5 / 16
100.0%
−49
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 =

Rating changes by day

Rating changes with played games


Created in 2005-2013 by CCRL team
Last games added on May 15, 2021