CCRL 40/15
Downloads and Statistics
February 20, 2021
Testing summary:
Total: 1'218'554 games
played by 2'788 programs

White wins: 418'779 (34.4%)
Black wins: 308'204 (25.3%)
Draws: 491'571 (40.3%)
White score: 54.5%

Engine Details

Options
Show each game results
Butcher 1.61 32-bit (2285+27
−27		)Quote
Author: Marek Kolacz (Poland) Link: Homepage
This is one of the 4 Butcher versions we tested: Compare them!
OpponentEloDiffResultsScoreLOSPerf
–   Gaviota 0.83 32-bit2525+27
−28		(+240)1.5 − 8.5
(+1−8=1)		15.0%
1.5 / 10
0.0%
−63
0 0 0 0 0 0 0 = 1 0
–   Rodin 4.02524+18
−18		(+239)0 − 4
(+0−4=0)		0.0%
0.0 / 4
0.0%
−INF
0 0 0 0
–   Pawny 0.2.2 32-bit2413+34
−34		(+128)1.5 − 2.5
(+1−2=1)		37.5%
1.5 / 4
0.0%
+42
= 0 1 0
–   Eeyore 1.52 32-bit2405+23
−23		(+120)2.5 − 1.5
(+2−1=1)		62.5%
2.5 / 4
0.0%
+212
0 1 = 1
–   Pawny 0.2.1 32-bit2403+31
−31		(+118)2 − 2
(+2−2=0)		50.0%
2.0 / 4
0.0%
+118
1 0 0 1
–   Rodin 3.02403+18
−18		(+118)1.5 − 3.5
(+0−2=3)		30.0%
1.5 / 5
0.0%
0
0 0 = = =
–   Atlas 3.14b 32-bit2401+25
−25		(+116)1.5 − 5.5
(+1−5=1)		21.4%
1.5 / 7
0.0%
−110
1 0 0 0 0 0 =
–   Dorky 4.3 32-bit2386+26
−26		(+101)2 − 6
(+0−4=4)		25.0%
2.0 / 8
0.0%
−45
= 0 = = 0 = 0 0
–   Ares 1.0042373+16
−16		(+88)7.5 − 18.5
(+4−15=7)		28.8%
7.5 / 26
0.0%
−63
0 = 0 = = 0 1 0 0 1 0 = = 0 1 0 = 0 0 0 0 0 1 0 0 =
–   iCE 0.22372+19
−19		(+87)1 − 3
(+1−3=0)		25.0%
1.0 / 4
0.0%
−139
1 0 0 0
–   TJchess 1.012371+24
−24		(+86)1.5 − 6.5
(+1−6=1)		18.8%
1.5 / 8
0.0%
−174
1 0 0 0 0 0 0 =
–   Alex 2.14a 32-bit2364+27
−27		(+79)4 − 4
(+2−2=4)		50.0%
4.0 / 8
0.0%
+79
0 = 0 = 1 = 1 =
–   OliThink 5.3.0 32-bit2359+21
−21		(+74)9 − 13
(+7−11=4)		40.9%
9.0 / 22
0.0%
+6
0 1 1 0 1 0 0 0 = = 1 0 = 1 0 1 1 0 0 0 = 0
–   Plisk 0.2.7d 32-bit2352+21
−21		(+67)19.5 − 16.5
(+15−12=9)
54.2%
19.5 / 36
0.0%
+94
= = 0 0 1 0 0 0 0 1 1 1 0 0 1 0 1 0 1 1 1 = = 1 1 = 1 = = 0 1 = 1 0 1 =
–   Tytan 9.32 32-bit2347+28
−28		(+62)0.5 − 1.5
(+0−1=1)		25.0%
0.5 / 2
0.1%
−80
0 =
–   Ghost 2.0.12343+19
−19		(+58)8.5 − 10.5
(+6−8=5)		44.7%
8.5 / 19
0.0%
+28
1 = 0 0 1 = = 1 0 0 0 1 0 = 1 0 = 1 0
–   Amundsen 0.802328+17
−17		(+43)1 − 1
(+1−1=0)		50.0%
1.0 / 2
0.4%
+43
1 0
–   Alex 2.132326+32
−33		(+41)3 − 5
(+2−4=2)		37.5%
3.0 / 8
2.7%
−54
1 1 0 = 0 = 0 0
–   Sjakk 1.1.92326+29
−29		(+41)5 − 5
(+4−4=2)		50.0%
5.0 / 10
2.1%
+35
0 1 = 0 0 1 = 1 0 1
–   Simplex 0.9.7 32-bit2324+31
−31		(+39)5.5 − 6.5
(+5−6=1)		45.8%
5.5 / 12
3.1%
+7
= 0 0 0 0 1 0 1 0 1 1 1
–   EveAnn 1.672319+30
−30		(+34)1 − 1
(+1−1=0)		50.0%
1.0 / 2
4.8%
+34
0 1
–   ECE 12.012319+22
−22		(+34)4.5 − 5.5
(+3−4=3)		45.0%
4.5 / 10
2.8%
−1
1 0 1 0 = = 0 = 0 1
–   Mediocre 0.42314+27
−27		(+29)4 − 10
(+3−9=2)		28.6%
4.0 / 14
6.8%
−142
= 0 0 0 = 0 1 0 0 1 0 1 0 0
–   Cheese 1.3b 32-bit2313+34
−34		(+28)4 − 2
(+3−1=2)		66.7%
4.0 / 6
10.7%
+137
= 0 1 1 1 =
–   Cheese 1.32309+17
−17		(+24)1.5 − 0.5
(+1−0=1)		75.0%
1.5 / 2
7.6%
+181
1 =
–   Waxman 20102309+22
−21		(+24)6 − 10
(+4−8=4)		37.5%
6.0 / 16
8.7%
−67
1 0 0 1 1 0 0 = 0 0 = 0 = = 1 0
–   Sjakk 1.1.82303+24
−24		(+18)2 − 6
(+1−5=2)		25.0%
2.0 / 8
16.8%
−168
= 0 0 1 0 = 0 0
–   Anechka 0.082302+19
−19		(+17)3 − 1
(+3−1=0)		75.0%
3.0 / 4
16.2%
+243
1 1 0 1
–   Natwarlal 0.142299+19
−19		(+14)2 − 2
(+2−2=0)		50.0%
2.0 / 4
21.2%
+14
0 1 0 1
–   Popochin 3.22296+18
−18		(+11)2 − 0
(+2−0=0)		100.0%
2.0 / 2
25.1%
+INF
1 1
–   Chaturanga 2.4.32289+19
−19		(+4)15 − 17
(+9−11=12)
46.9%
15.0 / 32
39.8%
−17
1 0 0 = = 1 = = 0 = 1 = 1 0 0 = 0 1 = 0 0 0 0 1 = = = 1 0 = 1 1
–   AliChess 4.252283+19
−19		(−2)13.5 − 18.5
(+10−15=7)
42.2%
13.5 / 32
56.4%
−58
1 0 1 0 1 0 0 = 1 = 1 1 1 = = 1 0 0 = = 0 0 0 0 0 = 1 0 0 0 1 0
–   Matilde 2008 32-bit2273+33
−34		(−12)0.5 − 1.5
(+0−1=1)		25.0%
0.5 / 2
70.6%
−168
0 =
–   EveAnn 1.662270+33
−33		(−15)4.5 − 3.5
(+4−3=1)		56.3%
4.5 / 8
75.4%
+30
0 1 0 1 = 1 0 1
–   Sungorus 1.4 32-bit2260+21
−21		(−25)14 − 8
(+12−6=4)		63.6%
14.0 / 22
93.2%
+80
= 1 1 = 1 0 0 1 = 1 1 0 1 0 0 = 1 1 1 0 1 1
–   RattateChess 1.0 Nosferatu2253+19
−18		(−32)4 − 0
(+4−0=0)		100.0%
4.0 / 4
97.3%
+INF
1 1 1 1
–   Atak 6.82238+16
−16		(−47)7 − 5
(+5−3=4)		58.3%
7.0 / 12
99.9%
+8
= 1 1 = 0 0 1 0 = 1 = 1
–   Betsabe II 1.08c2237+35
−35		(−48)1 − 3
(+1−3=0)		25.0%
1.0 / 4
98.4%
−273
0 1 0 0
–   Dolphin 1.0 64-bit2231+18
−18		(−54)7 − 3
(+5−1=4)		70.0%
7.0 / 10
100.0%
+77
1 = 1 = = 0 = 1 1 1
–   Bearded N44.22223+34
−34		(−62)1 − 1
(+0−0=2)		50.0%
1.0 / 2
99.7%
−62
= =
–   Bagatur 1.2d 32-bit2219+34
−34		(−66)5 − 5
(+2−2=6)		50.0%
5.0 / 10
99.9%
−66
= 1 = = = 0 0 = = 1
–   Beowulf 2.4a 32-bit2218+19
−19		(−67)5 − 1
(+4−0=2)		83.3%
5.0 / 6
100.0%
+164
1 = 1 = 1 1
–   Uralochka 1.1b2218+18
−18		(−67)0.5 − 1.5
(+0−1=1)		25.0%
0.5 / 2
100.0%
−209
0 =
–   Betsabe II 1.09c2209+34
−35		(−76)1.5 − 0.5
(+1−0=1)		75.0%
1.5 / 2
100.0%
+80
= 1
–   Myrddin 0.85 32-bit2206+27
−27		(−79)2 − 2
(+2−2=0)		50.0%
2.0 / 4
100.0%
−79
1 0 0 1
–   Latista (Sinobyl) 1.52206+22
−22		(−79)1.5 − 0.5
(+1−0=1)		75.0%
1.5 / 2
100.0%
+63
1 =
–   Jazz 501 32-bit2205+29
−29		(−80)1 − 1
(+1−1=0)		50.0%
1.0 / 2
100.0%
−80
0 1
–   FireFly 2.5.13 32-bit2188+34
−34		(−97)2.5 − 1.5
(+1−0=3)		62.5%
2.5 / 4
100.0%
−37
= 1 = =
–   NagaSkaki 5.122187+17
−17		(−98)1.5 − 2.5
(+1−2=1)		37.5%
1.5 / 4
100.0%
−193
1 0 0 =
–   KMTChess 1.2.1 32-bit2183+21
−21		(−102)3 − 1
(+2−0=2)		75.0%
3.0 / 4
100.0%
+54
= = 1 1
–   FireFly 2.5.102180+34
−34		(−105)4 − 0
(+4−0=0)		100.0%
4.0 / 4
100.0%
+INF
1 1 1 1
–   ECE 11.012180+23
−23		(−105)1.5 − 2.5
(+1−2=1)		37.5%
1.5 / 4
100.0%
−200
0 0 = 1
–   Sjakk 1.1.72174+34
−34		(−111)7 − 3
(+6−2=2)		70.0%
7.0 / 10
100.0%
+38
1 = 1 1 = 0 0 1 1 1
–   iCE 0.12162+29
−29		(−123)10 − 4
(+9−3=2)		71.4%
10.0 / 14
100.0%
+45
1 0 1 = 1 0 1 1 1 0 1 = 1 1
–   Chesley r323 32-bit2155+24
−24		(−130)1 − 3
(+1−3=0)		25.0%
1.0 / 4
100.0%
−364
0 0 0 1
–   KnockOut 0.7.12153+15
−15		(−132)3 − 1
(+3−1=0)		75.0%
3.0 / 4
100.0%
+94
1 1 1 0
–   Ifrit j4.32150+28
−28		(−135)11 − 3
(+10−2=2)		78.6%
11.0 / 14
100.0%
+95
0 1 1 1 1 = 1 0 1 1 1 1 = 1
493 games: 177 wins, 196 losses, 120 draws (24.3%), score: 48.1%

Rating changes by day

Rating changes with played games

Created in 2005-2013 by CCRL team
Last games added on February 20, 2021