KCEC
(Kirr's Chess Engine Comparison)
A tournament of original free chess engines
June 16, 2013
Testing summary:
Total: 135,679 games
played by 202 programs
1398 CPU days (X2 4600+)

White wins: 55,227 (40.7%)
Black wins: 47,434 (35.0%)
Draws: 33,018 (24.3%)
White score: 52.9%

Engine Details

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Show each game results
Sharper 0.17 WB#150  (2022+16
−16		)Quote
Author: Albert Bertilsson (Sweden) Released: 2003-11-11Link: Homepage
Issues with this engine: Frequent crashes.
This is the only Sharper version we tested.
OpponentEloDiffResultsScoreLOSPerfPond
hit		Eval
diff
–   Esc 1.162345+15
−15		(+323)3.5 − 23.5
(+1−21=5)
13.0%
3.5 / 27
0.0%
+22
52.0%
1954
1.04
1016
0 0 0 0 1 0 = 0 = 0 0 0 = 0 0 0 = 0 0 = 0 0 0 0 0 0 0
–   Dorky 3.482308+16
−16		(+286)3.5 − 24.5
(+1−22=5)
12.5%
3.5 / 28
0.0%
−19
52.8%
1746
1.79
922
= 0 1 0 0 0 0 0 = 0 0 0 0 0 0 = 0 0 = 0 0 0 0 = 0 0 0 0
–   CyberPagno 2.1 32MB2295+16
−16		(+273)6 − 21
(+5−20=2)
22.2%
6.0 / 27
0.0%
+34
55.3%
2321
0.72
1283
0 0 0 0 0 1 1 0 0 = 0 0 0 0 = 0 0 1 0 0 1 1 0 0 0 0 0
–   Madeleine 0.22285+15
−15		(+263)7.5 − 20.5
(+6−19=3)
26.8%
7.5 / 28
0.0%
+72
49.7%
2653
1.09
1318
0 1 0 1 1 = 1 0 0 1 0 0 0 0 0 0 1 0 0 = 0 0 0 0 0 0 = 0
–   Chispa 4.0.32273+14
−14		(+251)4.5 − 25.5
(+1−22=7)
15.0%
4.5 / 30
0.0%
−16
54.2%
1546
1.18
838
0 0 0 0 0 0 0 0 0 0 0 1 0 = = 0 = = 0 0 0 = = 0 0 0 0 0 0 =
–   InmiChess 3.06N2241+15
−15		(+219)3 − 25
(+0−22=6)
10.7%
3.0 / 28
0.0%
−93
56.2%
1502
1.17
844
0 0 0 0 = 0 0 0 0 0 0 0 = = = 0 0 0 0 0 0 = 0 0 0 = 0 0
–   Nesik 0.7.0 alpha2237+16
−16		(+215)6.5 − 21.5
(+4−19=5)
23.2%
6.5 / 28
0.0%
+9
52.5%
1910
1.44
1003
0 = 0 1 0 0 0 0 0 0 0 0 = 0 = 0 = 1 0 0 0 1 0 0 = 0 1 0
–   Sunsetter C10.3 64-bit JA2232+16
−16		(+210)7 − 18
(+6−17=2)
28.0%
7.0 / 25
0.0%
+28
49.5%
1940
0.90
961
0 1 0 0 0 0 0 1 1 0 = 0 0 1 0 0 0 1 0 0 = 1 0 0 0
–   Alarm 0.93.12226+16
−16		(+204)3.5 − 28.5
(+2−27=3)
10.9%
3.5 / 32
0.0%
−156
51.6%
2417
1.67
1248
0 0 0 0 0 0 0 0 0 0 0 = 0 0 0 0 0 0 0 0 0 0 0 0 = = 1 0 0 1 0 0
–   Fortress 1.622216+15
−15		(+194)7.5 − 16.5
(+5−14=5)
31.3%
7.5 / 24
0.0%
+59
49.6%
1735
1.26
860
0 0 = = 0 0 1 1 0 0 = = 1 0 0 0 1 = 0 0 0 1 0 0
–   WJChess 1.642215+16
−16		(+193)3.5 − 20.5
(+2−19=3)
14.6%
3.5 / 24
0.0%
−110
54.9%
2077
1.16
1141
= 0 0 0 0 = 0 0 1 0 0 1 0 0 0 0 0 = 0 0 0 0 0 0
–   Gk 0.90 64-bit JA2194+16
−16		(+172)7 − 23
(+6−22=2)
23.3%
7.0 / 30
0.0%
−61
49.8%
2630
0.82
1310
1 0 1 1 1 0 0 0 0 0 0 0 1 0 0 0 1 = 0 = 0 0 0 0 0 0 0 0 0 0
–   Ghost 0.142189+17
−17		(+167)11 − 21
(+9−19=4)
34.4%
11.0 / 32
0.0%
+42
49.7%
2411
1.34
1199
0 1 0 0 0 = 0 0 1 = 0 1 0 = 0 0 0 0 0 1 0 1 0 0 0 1 0 = 1 0 1 1
–   Wing 2.0a2179+16
−16		(+157)8.5 − 17.5
(+5−14=7)
32.7%
8.5 / 26
0.0%
+32
49.4%
1742
1.09
861
1 0 0 0 0 1 = 0 = 1 0 = 0 1 0 = 1 = 0 0 = 0 0 0 = 0
–   Uragano 3D 0.872174+16
−16		(+152)14 − 18
(+12−16=4)
43.8%
14.0 / 32
0.0%
+103
53.9%
2398
0.82
1292
0 = 0 1 0 0 0 1 = 0 0 1 0 0 1 0 1 0 0 1 0 1 1 = 0 1 1 1 1 0 = 0
–   Matheus 2.32144+15
−15		(+122)12 − 16
(+10−14=4)
42.9%
12.0 / 28
0.0%
+69
55.1%
2359
0.56
1300
= 1 1 1 1 0 1 = 1 0 0 = 1 1 0 0 0 0 = 1 0 0 0 0 1 0 0 0
–   Bodo 0.2b2137+15
−15		(+115)8 − 19
(+8−19=0)
29.6%
8.0 / 27
0.0%
−67
48.8%
1885
0.72
919
0 0 0 0 0 0 1 0 0 1 1 0 0 1 0 0 0 0 0 1 1 1 0 0 0 0 1
–   Monarch 1.72131+16
−16		(+109)12.5 − 19.5
(+9−16=7)
39.1%
12.5 / 32
0.0%
+27
51.4%
2457
1.09
1264
1 = 1 = 1 0 0 = 0 1 0 0 = 0 1 0 0 0 0 0 = 1 1 1 0 = 0 = 0 0 1 0
–   Bestia 0.902122+15
−15		(+100)9.5 − 16.5
(+6−13=7)
36.5%
9.5 / 26
0.0%
+6
48.4%
2226
1.09
1078
0 = 1 0 = 0 0 0 1 0 = 1 = 0 1 = 0 1 0 0 = 0 0 1 = 0
–   Ax 0.82119+15
−15		(+97)8.5 − 17.5
(+8−17=1)
32.7%
8.5 / 26
0.0%
−52
  
0 0 0 1 0 0 1 0 1 0 0 1 0 1 0 0 0 0 1 0 1 0 = 0 1 0
–   Gerbil 02 64-bit JA2118+18
−18		(+96)9.5 − 22.5
(+7−20=5)
29.7%
9.5 / 32
0.0%
−63
51.5%
2323
0.82
1197
0 1 0 0 = 1 1 0 0 0 0 0 0 0 0 0 0 = 1 = 1 1 0 0 1 0 0 0 0 = 0 =
–   BigLion 2.23x2117+17
−17		(+95)11.5 − 20.5
(+10−19=3)
35.9%
11.5 / 32
0.0%
−18
52.2%
2766
0.69
1444
1 0 0 0 0 0 = 1 0 0 0 1 = 1 1 1 0 1 0 1 1 0 0 0 0 0 0 0 0 = 1 0
–   RDChess 3.232117+16
−16		(+95)11.5 − 20.5
(+7−16=9)
35.9%
11.5 / 32
0.0%
−2
53.4%
2020
1.11
1078
0 1 0 0 0 1 0 1 0 0 = = 0 1 0 = 0 = 0 1 0 = 1 = 0 = = 0 = 1 0 0
–   DelphiMax 2.92102+16
−16		(+80)8.5 − 19.5
(+6−17=5)
30.4%
8.5 / 28
0.0%
−68
53.4%
2185
0.72
1167
0 = 0 0 1 0 0 0 = 0 1 0 = 0 0 0 1 1 1 = 0 1 0 0 0 0 = 0
–   Armageddon 2.3082098+17
−17		(+76)14.5 − 17.5
(+10−13=9)
45.3%
14.5 / 32
0.0%
+44
51.1%
1946
0.89
995
= 0 0 0 1 0 0 = = 1 1 = 0 0 0 = 1 0 1 1 0 1 0 = = 1 0 1 = 1 = 0
–   Requiem 0.532084+15
−15		(+62)14.5 − 17.5
(+9−12=11)
45.3%
14.5 / 32
0.0%
+32
56.2%
1535
0.62
863
1 0 = = 1 1 = 1 0 1 0 0 1 0 0 1 = = = 1 = 0 = 0 0 = 0 0 0 1 = =
–   Small Potato 0.6.12082+16
−16		(+60)13.5 − 18.5
(+9−14=9)
42.2%
13.5 / 32
0.0%
+7
52.6%
2318
0.88
1220
0 1 = 0 = 0 1 0 0 0 = 0 = 1 0 0 0 = = 1 1 = 1 0 0 = = 1 0 1 0 1
–   Elephant 1.062075+16
−16		(+53)6 − 15
(+5−14=2)
28.6%
6.0 / 21
0.0%
−123
51.9%
1806
0.59
937
1 0 0 0 0 0 0 0 1 0 1 0 = = 0 1 0 1 0 0 0
–   La Dame Blanche 2.0c2070+19
−19		(+48)17.5 − 14.5
(+14−11=7)
54.7%
17.5 / 32
0.0%
+80
47.4%
1801
1.45
854
0 1 = 1 0 1 0 1 0 0 0 = 1 = 0 0 0 0 1 1 = = 1 0 1 = 1 1 1 = 1 1
–   Cilian 4.142069+16
−16		(+47)15 − 17
(+10−12=10)
46.9%
15.0 / 32
0.0%
+26
  
0 = 0 0 1 = = 1 1 0 = 0 0 0 = 0 = 1 1 = 1 1 0 = = 1 0 1 1 = 0 0
–   Etude 0.1.22063+19
−19		(+41)11 − 21
(+7−17=8)
34.4%
11.0 / 32
0.0%
−68
49.4%
2327
0.77
1149
1 0 = 0 0 = 0 0 0 = 1 0 1 0 1 = 1 1 0 0 = 0 = 0 1 0 0 = 0 = 0 0
–   Gullydeckel 2.16pl12062+19
−19		(+40)12.5 − 19.5
(+9−16=7)
39.1%
12.5 / 32
0.0%
−37
53.4%
2316
0.55
1236
1 1 0 0 0 = 0 0 1 1 0 = 0 0 1 1 0 = 1 = 0 0 1 0 0 0 = = = 1 0 0
–   JanWillem 1.132062+16
−16		(+40)12 − 15
(+9−12=6)
44.4%
12.0 / 27
0.0%
0
47.2%
1689
1.30
798
1 = 0 1 0 1 0 0 = 1 1 = = 1 = 0 0 1 0 = 0 0 1 0 0 1 0
–   Marvin 1.3.02054+16
−16		(+32)7 − 21
(+5−19=4)
25.0%
7.0 / 28
0.1%
−166
55.2%
2148
0.83
1186
0 1 1 0 0 = 0 0 = 0 0 = 0 0 0 0 0 0 0 0 1 0 1 1 0 0 0 =
–   Matant 5.042053+17
−17		(+31)19.5 − 12.5
(+18−11=3)
60.9%
19.5 / 32
0.2%
+117
51.0%
1996
1.01
1017
0 1 0 1 1 1 1 1 1 1 0 0 1 1 0 0 1 0 0 = 1 0 1 = 1 0 0 1 1 = 1 1
–   SSEChessII 2.05 DC2049+17
−17		(+27)18 − 14
(+14−10=8)
56.3%
18.0 / 32
0.5%
+72
47.7%
2548
0.96
1215
1 0 1 = = 1 = 1 1 0 0 1 0 0 1 1 0 0 = = 1 = 0 1 = 1 0 0 = 1 1 1
–   Faile 1.4.42042+15
−15		(+20)12.5 − 15.5
(+7−10=11)
44.6%
12.5 / 28
2.3%
−11
53.9%
1591
0.46
857
1 = = = = 0 1 = 1 1 1 0 0 = 0 0 = 1 0 = 0 1 = = 0 0 0 =
–   Smash 1.0.32036+17
−17		(+14)17 − 15
(+15−13=4)
53.1%
17.0 / 32
8.9%
+38
49.8%
2935
0.80
1461
0 0 0 = 1 1 0 1 = 1 1 1 0 1 1 0 1 1 0 = 0 0 0 1 = 1 1 1 1 0 0 0
–   Micro-Max 4.8 PIV DM2028+17
−17		(+6)14 − 18
(+11−15=6)
43.8%
14.0 / 32
27.6%
−40
74.8%
3089
1.08
2312
1 1 = 0 1 0 = 1 0 0 1 1 1 = 0 0 = 0 0 1 0 0 1 0 1 0 1 0 0 = 0 =
–   Mustang 4.972021+17
−17		(−1)20 − 12
(+16−8=8)
62.5%
20.0 / 32
53.5%
+87
49.9%
1623
0.92
810
0 = = 1 1 1 1 = 1 1 0 0 1 1 0 1 1 0 1 = = 1 0 1 1 0 1 = = 1 = 0
–   Rival UCI 1.182021+17
−17		(−1)17 − 15
(+15−13=4)
53.1%
17.0 / 32
53.1%
+24
47.6%
3436
0.80
1637
1 1 = 0 = 0 0 1 0 = 1 1 1 1 0 0 1 1 0 0 1 0 1 1 = 1 0 0 0 1 0 1
–   BibiChess 0.52007+16
−16		(−15)19.5 − 12.5
(+15−8=9)
60.9%
19.5 / 32
92.3%
+61
  
= 1 = = 1 1 1 1 = 1 0 1 = 1 = 1 1 1 1 = 1 1 1 0 0 0 = = 0 0 0 0
–   IACH 0.56z1995+18
−18		(−27)13.5 − 18.5
(+10−15=7)
42.2%
13.5 / 32
99.3%
−82
61.1%
2936
1.40
1795
0 1 0 1 0 0 0 1 0 0 = 1 0 1 0 1 = 1 = 0 0 = = 1 0 0 1 = 1 = 0 0
–   Heracles 0.6.161993+19
−19		(−29)14.5 − 17.5
(+11−14=7)
45.3%
14.5 / 32
99.3%
−62
47.9%
2755
0.91
1319
0 = 1 = 1 0 1 1 = 1 0 0 0 = 0 0 = 1 1 1 = 0 1 0 0 1 1 0 0 = 0 0
–   Clueless 1.41990+18
−18		(−32)18 − 14
(+16−12=4)
56.3%
18.0 / 32
99.8%
+17
50.3%
2539
1.01
1278
0 0 1 1 0 1 1 0 1 1 1 1 = 0 0 1 0 0 1 1 0 1 = 1 0 1 0 1 = 1 0 =
–   Warrior 1.0.31987+17
−17		(−35)16 − 16
(+11−11=10)
50.0%
16.0 / 32
99.9%
−36
53.2%
1964
0.65
1045
= = 0 1 = = 0 0 1 0 0 1 0 = 0 = 1 0 0 1 0 0 1 = = = 1 1 1 1 = 1
–   Morphy 3.221974+17
−17		(−48)18 − 14
(+15−11=6)
56.3%
18.0 / 32
100.0%
−1
53.5%
2114
3.95
1132
0 0 1 1 1 0 = 1 0 0 0 1 1 1 0 = 0 0 1 1 1 0 1 = = 1 0 1 = = 1 1
–   Eagle 0.7.51973+20
−20		(−49)15.5 − 16.5
(+14−15=3)
48.4%
15.5 / 32
100.0%
−62
44.4%
3082
0.81
1369
0 1 0 0 0 = 1 1 1 = 1 1 1 0 1 0 0 0 0 1 0 0 0 0 1 1 = 1 1 0 0 1
–   SnailChess 4.0131973+19
−19		(−49)19.5 − 12.5
(+16−9=7)
60.9%
19.5 / 32
100.0%
+28
75.0%
2020
2.51
1514
0 1 = = 1 0 1 0 1 1 1 = 1 1 0 1 0 = 1 1 1 = = 1 1 0 0 = 0 1 0 1
–   Celes 0.77c1921+20
−20		(−101)18 − 14
(+15−11=6)
56.3%
18.0 / 32
100.0%
−54
48.7%
1981
1.30
965
1 0 0 = = 1 0 1 0 1 0 1 1 0 0 1 = 0 0 1 1 1 1 = 0 1 = = 1 1 0 1
–   Simontacchi 1.811915+20
−20		(−107)20.5 − 11.5
(+19−10=3)
64.1%
20.5 / 32
100.0%
+6
54.4%
2390
0.71
1301
1 = 0 0 1 = = 1 0 1 1 1 1 1 1 1 0 1 1 0 0 0 1 1 0 1 0 1 0 1 1 1
–   Ranita 2.41907+20
−20		(−115)17 − 15
(+15−13=4)
53.1%
17.0 / 32
100.0%
−90
54.7%
2548
0.81
1395
= 1 0 1 1 1 0 0 0 1 1 1 0 0 0 0 1 1 0 1 1 0 0 = 1 = 1 1 = 0 0 1
–   Cecir 3.51885+19
−19		(−137)23 − 9
(+21−7=4)
71.9%
23.0 / 32
100.0%
+37
50.2%
2648
0.84
1329
1 1 0 1 = 1 1 = 1 1 0 0 1 1 1 0 1 0 1 = 1 1 1 1 1 1 1 0 = 0 1 1
–   Enigma 1.1.41879+21
−21		(−143)26 − 6
(+24−4=4)
81.3%
26.0 / 32
100.0%
+115
45.2%
2651
0.96
1198
1 1 1 1 0 1 1 = 1 = 1 = 0 1 1 = 1 1 1 1 1 0 1 1 0 1 1 1 1 1 1 1
–   Soldat 0.25b1873+17
−17		(−149)14 − 11
(+12−9=4)
56.0%
14.0 / 25
100.0%
−103
50.1%
1803
0.64
904
0 1 0 0 = 1 1 0 0 0 = 1 0 1 0 1 1 0 1 1 = = 1 1 1
–   Grizzly 1.40.1b1837+20
−20		(−185)25.5 − 6.5
(+25−6=1)
79.7%
25.5 / 32
100.0%
+87
51.6%
2135
0.58
1101
1 1 1 1 1 0 1 = 1 1 1 1 1 1 1 1 1 0 1 1 1 1 1 1 1 1 0 0 1 1 0 0
–   Robin 0.9831834+20
−20		(−188)23.5 − 8.5
(+21−6=5)
73.4%
23.5 / 32
100.0%
−4
49.2%
2392
0.77
1176
= 1 1 1 1 0 1 1 1 = 0 1 1 1 1 1 1 = 1 = 1 1 1 1 0 0 1 0 = 1 1 0
–   Elf 1.3.01820+18
−18		(−202)20.5 − 9.5
(+18−7=5)
68.3%
20.5 / 30
100.0%
−59
52.6%
2116
0.84
1113
1 1 1 1 = 1 0 0 1 1 = 1 1 1 0 1 0 1 0 1 = 1 0 0 1 1 = = 1 1
–   Laurifer 1.01815+18
−18		(−207)26 − 6
(+24−4=4)
81.3%
26.0 / 32
100.0%
+53
50.6%
1941
0.83
983
1 1 1 = 1 1 1 1 1 1 = 1 1 1 = = 1 1 1 0 1 1 0 1 0 1 0 1 1 1 1 1
–   Aldebaran 0.7.01794+19
−19		(−228)28.5 − 3.5
(+26−1=5)
89.1%
28.5 / 32
100.0%
+104
53.0%
2337
0.73
1239
0 = 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
–   Adamant 1.71790+19
−19		(−232)25 − 7
(+23−5=4)
78.1%
25.0 / 32
100.0%
−2
53.3%
2502
0.86
1333
0 1 1 = 1 1 0 1 1 1 1 1 = 0 0 1 0 1 1 1 1 1 1 1 1 1 1 = 1 1 1 =
–   Mizar 3.01767+20
−20		(−255)26.5 − 5.5
(+26−5=1)
82.8%
26.5 / 32
100.0%
+52
45.6%
2628
1.37
1198
0 1 1 1 1 0 1 1 1 1 1 1 1 1 0 1 1 1 1 1 1 1 0 1 1 0 1 1 1 = 1 1
1867 games in total: 696 wins, 847 losses, 324 draws (17.4%), score: 46.0%
Average opponent: +30.3 (2052.3), average distance to opponent: 115.7

Performance

This figure shows how this engine performs depending on how strong is the opponent. Regression:

Perf = C − 0.046 [±0.118] * Opp

Where 'Opp' is the opponent's rating. 95% confidence intervals are in the brackets.

Rating changes by day

Rating changes with played games

Created in 2005-2012 by Kirill Kryukov
Updated on June 16, 2013