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
Esc 1.16 WB#99  (2345+15
−15		)Quote
Author: Claudio Della Corte (Italy) Released: 2002-05-06
This engine is stable and runs without issues.
This is the only Esc version we tested.
OpponentEloDiffResultsScoreLOSPerfPond
hit		Eval
diff
–   Leila 0.53h2490+17
−17		(+145)4 − 21
(+3−20=2)
16.0%
4.0 / 25
0.0%
−159
55.7%
1678
0.94
934
0 0 0 0 0 0 0 0 0 0 0 0 0 0 = 0 1 0 = 0 1 1 0 0 0
–   Comet B682478+14
−14		(+133)8 − 16
(+6−14=4)
33.3%
8.0 / 24
0.0%
+4
52.8%
1787
0.87
944
0 0 1 1 = = = 1 0 = 0 0 0 0 0 1 0 0 0 0 0 1 1 0
–   Sjeng 12.132475+14
−14		(+130)11.5 − 14.5
(+7−10=9)
44.2%
11.5 / 26
0.0%
+95
57.7%
1457
0.93
841
1 = = = = 1 1 = 1 0 0 = 0 0 0 0 1 = = 0 0 1 1 0 0 =
–   Muse 0.899b2474+16
−16		(+129)6 − 18
(+4−16=4)
25.0%
6.0 / 24
0.0%
−68
54.4%
1780
0.72
969
= 0 1 1 = 1 0 0 0 = 0 = 0 1 0 0 0 0 0 0 0 0 0 0
–   Patzer 3.802460+16
−16		(+115)12 − 20
(+8−16=8)
37.5%
12.0 / 32
0.0%
+25
53.3%
2247
1.07
1198
0 1 = = 0 1 0 1 0 1 1 = 0 = 0 = 0 0 0 0 0 0 1 0 0 = = 0 = 1 1 0
–   The Crazy Bishop 00522460+15
−15		(+115)10.5 − 17.5
(+7−14=7)
37.5%
10.5 / 28
0.0%
+29
54.2%
2318
0.55
1257
0 1 1 0 0 = 0 0 = = = 0 0 0 = 1 0 1 1 0 = 0 = 0 0 0 1 1
–   Gosu 0.162455+16
−16		(+110)10 − 22
(+8−20=4)
31.3%
10.0 / 32
0.0%
−38
51.3%
3042
1.06
1560
= 0 1 0 1 0 0 1 0 = 0 = 0 0 0 0 0 0 0 0 1 = 1 0 1 1 0 0 0 1 0 0
–   Der Bringer 1.92455+15
−15		(+110)6.5 − 15.5
(+3−12=7)
29.5%
6.5 / 22
0.0%
−28
53.7%
1401
0.57
753
0 = 1 0 = 0 0 0 0 1 = 0 = 0 1 0 = 0 0 = 0 =
–   Homer 2.012452+17
−17		(+107)10.5 − 21.5
(+6−17=9)
32.8%
10.5 / 32
0.0%
−11
54.3%
2011
0.81
1091
0 1 0 0 = 0 0 = = 0 0 1 = 0 0 = 1 1 0 0 0 1 0 0 = = = 1 0 0 0 =
–   Phalanx XXII Reborn JA2452+15
−15		(+107)9 − 15
(+6−12=6)
37.5%
9.0 / 24
0.0%
+20
54.8%
1420
0.71
778
= 1 0 = 1 0 0 1 0 = = 0 0 = 0 0 0 1 = 1 0 1 0 0
–   Betsy 6.51 Nobook2450+15
−15		(+105)10.5 − 17.5
(+6−13=9)
37.5%
10.5 / 28
0.0%
+20
57.3%
1709
0.74
980
= 0 1 0 0 0 = 0 0 0 0 0 0 1 1 = = 1 = = = = 1 0 0 = 1 0
–   GNU Chess 5.07.9b 64-bit JA2448+16
−16		(+103)12 − 20
(+10−18=4)
37.5%
12.0 / 32
0.0%
+4
52.2%
2811
0.80
1468
= = 0 0 = 0 0 0 1 0 1 0 0 0 0 0 1 1 1 0 1 1 0 0 0 1 1 0 1 0 = 0
–   Amateur 2.822446+15
−15		(+101)8.5 − 16.5
(+6−14=5)
34.0%
8.5 / 25
0.0%
−12
53.1%
2272
0.86
1206
0 = 0 0 = 1 1 0 0 1 1 = 0 1 0 0 0 1 = 0 0 0 = 0 0
–   Tytan 9.32 64-bit2429+17
−17		(+84)13 − 19
(+9−15=8)
40.6%
13.0 / 32
0.0%
+17
  
1 1 = 0 = 1 = 0 0 0 0 0 0 1 1 0 = = 1 0 0 = 0 1 1 1 0 = 0 = 0 0
–   Sorgenkind 0.42421+18
−18		(+76)9.5 − 22.5
(+5−18=9)
29.7%
9.5 / 32
0.0%
−66
53.6%
1974
1.14
1058
= 0 0 0 1 0 0 0 0 1 = = = = = = 1 1 0 0 0 0 0 1 0 0 0 0 0 0 = =
–   Horizon 4.42419+18
−18		(+74)11 − 21
(+6−16=10)
34.4%
11.0 / 32
0.0%
−32
49.7%
1887
1.68
937
= 0 0 0 0 0 0 = 0 = 0 1 1 0 0 = 0 = = 0 = = = 1 1 1 = 0 0 1 0 0
–   Thor's Hammer 2.28 32-bit2417+15
−15		(+72)12 − 14
(+11−13=2)
46.2%
12.0 / 26
0.0%
+42
53.7%
2545
0.66
1366
1 = 0 0 1 0 0 1 0 0 1 0 0 0 1 0 1 1 1 0 1 0 1 = 0 1
–   Arion 1.72415+16
−16		(+70)9.5 − 13.5
(+8−12=3)
41.3%
9.5 / 23
0.0%
−3
62.7%
1730
0.65
1085
1 1 0 0 = 1 1 0 0 = 1 0 0 1 1 1 0 0 = 0 0 0 0
–   AICE 0.99.22411+16
−16		(+66)9 − 23
(+5−19=8)
28.1%
9.0 / 32
0.0%
−91
50.2%
2030
0.80
1019
= 0 = 0 0 = 0 = = 0 0 0 0 0 0 0 0 0 1 0 0 = 1 0 1 1 1 0 0 = = 0
–   Chezzz 1.0.32409+15
−15		(+64)10 − 19
(+7−16=6)
34.5%
10.0 / 29
0.0%
−49
50.8%
2694
0.81
1368
1 0 0 0 1 0 0 = = 1 0 = 0 0 0 1 = 0 1 0 0 0 0 0 0 1 = = 1
–   Asterisk 0.62402+17
−17		(+57)11 − 21
(+7−17=8)
34.4%
11.0 / 32
0.0%
−53
56.0%
2437
0.61
1364
0 0 0 1 0 0 = 1 0 = 0 1 1 0 = 0 0 0 0 0 1 0 1 0 = = 0 = 1 0 = =
–   Resp 0.19 64-bit JA Nobook2402+16
−16		(+57)6 − 14
(+2−10=8)
30.0%
6.0 / 20
0.0%
−62
51.2%
1456
0.69
745
= = 0 = 0 1 0 0 = = 0 = 0 0 0 0 1 0 = =
–   Averno 0.812396+15
−15		(+51)8.5 − 14.5
(+6−12=5)
37.0%
8.5 / 23
0.0%
−38
55.3%
1836
0.73
1015
1 1 0 1 1 0 = 0 = 0 0 0 1 0 = 0 = 1 = 0 0 0 0
–   Scidlet 3.61 64-bit JA2390+15
−15		(+45)12 − 13
(+11−12=2)
48.0%
12.0 / 25
0.0%
+32
57.2%
2295
0.68
1312
= 1 0 1 1 1 0 1 0 0 0 = 1 1 1 0 0 1 0 1 0 1 0 0 0
–   KnightX 1.922385+15
−15		(+40)10.5 − 13.5
(+8−11=5)
43.8%
10.5 / 24
0.0%
−10
53.0%
1820
0.66
965
0 0 = = 1 0 1 0 = 1 1 0 1 0 = 1 0 0 0 = 0 1 1 0
–   Eeyore 1.482384+15
−15		(+39)7 − 17
(+5−15=4)
29.2%
7.0 / 24
0.0%
−125
55.3%
2124
0.76
1175
0 = 1 0 0 0 0 0 1 1 = 0 0 = 0 0 0 = 1 0 1 0 0 0
–   Ayito 0.2.9942371+16
−16		(+26)13 − 14
(+10−11=6)
48.1%
13.0 / 27
0.7%
+10
51.0%
1864
0.93
950
1 0 1 = 0 = 1 = 1 0 0 = 1 1 0 0 1 = 1 0 = 0 1 0 1 0 0
–   Matilde 2008 64-bit2368+15
−15		(+23)15 − 17
(+13−15=4)
46.9%
15.0 / 32
1.1%
−2
56.3%
2711
0.78
1527
0 1 0 = 0 1 0 1 0 = 0 1 1 = = 1 1 1 0 0 0 1 0 0 0 0 1 0 1 1 1 0
–   Natwarlal 0.142359+17
−17		(+14)16 − 16
(+13−13=6)
50.0%
16.0 / 32
9.9%
+15
57.6%
2366
0.71
1363
0 1 1 0 1 0 0 = 1 0 1 1 0 0 1 1 1 0 1 0 = = 1 0 0 0 = = 1 0 1 =
–   EXchess 5.01 beta 64-bit JA2355+14
−14		(+10)10 − 14
(+6−10=8)
41.7%
10.0 / 24
15.2%
−50
55.1%
1558
0.71
859
= 0 1 0 0 0 = = 1 1 = = 0 0 = 1 0 1 0 0 = 0 = 1
–   Zeus 1.292346+16
−16		(+1)17.5 − 14.5
(+13−10=9)
54.7%
17.5 / 32
44.6%
+32
54.6%
1962
0.77
1071
0 1 1 0 = = 1 0 = 1 1 0 1 0 0 1 1 = 1 = 1 0 = 0 1 0 = 0 1 1 = =
–   Popochin 3.22341+19
−19		(−4)15 − 17
(+11−13=8)
46.9%
15.0 / 32
61.6%
−25
59.5%
2172
0.69
1293
1 = 1 0 0 0 0 1 = 0 1 = 1 1 1 1 = 0 1 0 = 0 1 = 0 0 0 0 1 = = 0
–   ANT 2006-F2333+16
−16		(−12)14 − 13
(+11−10=6)
51.9%
14.0 / 27
85.0%
+3
53.6%
2068
0.78
1108
0 1 = = 1 1 = 1 0 1 0 = = 1 0 1 1 1 0 0 1 0 0 0 1 = 0
–   GNU Chess 5.07 64-bit JA2332+22
−22		(−13)12 − 16
(+10−14=4)
42.9%
12.0 / 28
83.2%
−67
54.5%
1607
0.70
876
1 1 1 0 0 = 0 0 0 0 0 0 1 = 1 = 1 0 0 1 0 0 = 1 0 1 0 1
–   Anechka 0.082320+16
−16		(−25)18.5 − 13.5
(+14−9=9)
57.8%
18.5 / 32
98.8%
+28
54.1%
2334
0.82
1263
0 1 0 1 = = = 0 = 1 0 = 1 0 1 = 1 1 1 1 1 1 = = 1 0 0 0 1 1 0 =
–   Dorky 3.482308+16
−16		(−37)16.5 − 12.5
(+14−10=5)
56.9%
16.5 / 29
100.0%
+13
53.2%
2409
0.96
1281
= 1 1 1 0 1 1 = 1 0 0 1 1 1 = 1 0 0 0 = 1 = 0 1 1 0 0 1 0
–   CyberPagno 2.1 32MB2295+16
−16		(−50)11 − 13
(+9−11=4)
45.8%
11.0 / 24
100.0%
−82
59.5%
1764
0.72
1049
= 0 = 0 1 0 1 0 1 0 0 1 = 1 0 1 1 1 0 0 = 0 0 1
–   Latista (Sinobyl) 1.52289+16
−16		(−56)20 − 9
(+16−5=8)
69.0%
20.0 / 29
100.0%
+76
55.8%
2313
0.68
1291
= = 1 1 0 1 1 = 0 0 = 1 1 1 1 = 0 1 1 = 1 1 1 0 1 = 1 1 =
–   Madeleine 0.22285+15
−15		(−60)15 − 11
(+12−8=6)
57.7%
15.0 / 26
100.0%
−7
56.6%
1742
0.83
986
0 1 0 = 1 1 0 = 1 1 1 0 = = = 0 0 = 1 1 1 1 0 1 0 1
–   Chispa 4.0.32273+14
−14		(−72)18.5 − 9.5
(+13−4=11)
66.1%
18.5 / 28
100.0%
+27
54.0%
1594
0.86
860
0 = = 1 1 0 = = 1 1 1 1 = = = 1 = = 1 1 1 0 = 0 1 = 1 1
–   Uralochka 1.1b2272+18
−18		(−73)19.5 − 12.5
(+16−9=7)
60.9%
19.5 / 32
100.0%
+7
52.4%
2128
0.91
1115
1 0 1 1 0 1 0 0 = = = 1 = 1 1 1 1 1 0 1 1 = 0 1 = 1 = 0 1 1 0 0
–   Atlas 2.202271+17
−17		(−74)18 − 7
(+16−5=4)
72.0%
18.0 / 25
100.0%
+95
  
1 1 0 1 0 0 = 1 = 1 = 0 1 1 1 1 1 1 1 0 1 1 1 1 =
–   Genesis 2.02247+16
−16		(−98)18 − 10
(+13−5=10)
64.3%
18.0 / 28
100.0%
−4
57.4%
1891
0.74
1085
1 0 1 0 1 1 1 0 1 = = = 1 = = 1 1 = = 0 1 = 0 = 1 = 1 1
–   InmiChess 3.06N2241+15
−15		(−104)19 − 8
(+17−6=4)
70.4%
19.0 / 27
100.0%
+52
55.0%
1987
0.91
1093
= = 1 0 0 0 1 1 1 1 1 1 0 = = 0 1 1 1 1 1 1 0 1 1 1 1
–   Lime 662241+18
−18		(−104)23.5 − 8.5
(+19−4=9)
73.4%
23.5 / 32
100.0%
+60
50.3%
2483
0.89
1249
= 0 1 1 1 1 1 = 0 1 1 = 1 = 1 1 1 1 1 1 = 1 = = 1 0 1 = 1 0 = 1
–   Nesik 0.7.0 alpha2237+16
−16		(−108)18 − 7
(+14−3=8)
72.0%
18.0 / 25
100.0%
+34
57.4%
1562
0.64
897
1 = 1 1 = = 1 1 = 1 1 1 0 1 1 = = 1 = 1 0 1 = 0 1
–   Sunsetter C10.3 64-bit JA2232+16
−16		(−113)12.5 − 13.5
(+11−12=3)
48.1%
12.5 / 26
100.0%
−127
50.4%
2538
0.90
1278
0 1 = 0 0 0 1 0 1 1 0 0 0 1 0 1 0 = 1 1 0 1 1 0 = 1
–   NagaSkaki 5.122232+18
−18		(−113)20.5 − 11.5
(+17−8=7)
64.1%
20.5 / 32
100.0%
−10
55.4%
2227
0.78
1233
0 1 = 0 1 1 1 1 = = 0 = 1 0 1 1 1 1 1 0 0 1 1 = 0 1 1 1 = 0 = 1
–   Alarm 0.93.12226+16
−16		(−119)20 − 12
(+16−8=8)
62.5%
20.0 / 32
100.0%
−29
55.9%
2408
0.94
1346
= = 1 0 0 = 1 1 0 1 1 0 1 1 1 = 1 1 = 1 = = 1 1 0 = 0 0 0 1 1 1
–   Fortress 1.622216+15
−15		(−129)20.5 − 5.5
(+19−4=3)
78.8%
20.5 / 26
100.0%
+112
54.8%
1979
1.01
1084
0 1 1 0 = 1 1 1 1 0 = 1 1 1 1 1 1 0 1 1 1 = 1 1 1 1
–   WJChess 1.642215+16
−16		(−130)19.5 − 6.5
(+17−4=5)
75.0%
19.5 / 26
100.0%
+61
58.3%
2175
0.74
1268
1 0 = 1 1 1 1 0 1 1 1 1 0 = 1 1 1 1 = 1 1 1 0 = 1 =
–   Gk 0.90 64-bit JA2194+16
−16		(−151)18 − 9
(+15−6=6)
66.7%
18.0 / 27
100.0%
−28
52.4%
2261
1.03
1185
= 1 1 0 0 1 0 = 1 = 1 0 1 = 1 0 1 0 1 1 1 = = 1 1 1 1
–   Alf 1.09 JA2193+17
−17		(−152)26.5 − 5.5
(+25−4=3)
82.8%
26.5 / 32
100.0%
+133
57.7%
2594
0.93
1496
1 1 1 = 1 1 = 1 1 1 1 = 1 1 0 1 1 1 1 1 1 0 1 1 1 1 0 1 1 0 1 1
–   Clarabit 1.00 64-bit2193+18
−18		(−152)21.5 − 10.5
(+17−6=9)
67.2%
21.5 / 32
100.0%
−31
52.5%
2303
0.74
1210
= 0 1 0 = = 1 1 1 1 1 = 1 1 1 = 1 0 1 1 = 1 1 1 = 0 = 1 0 0 1 =
–   Wing 2.0a2179+16
−16		(−166)18 − 11
(+13−6=10)
62.1%
18.0 / 29
100.0%
−86
52.9%
1509
0.77
798
= 0 = 0 1 0 = 1 1 1 1 = 1 0 1 1 = 1 1 = 0 = 1 = 1 1 = 0 =
–   Uragano 3D 0.872174+16
−16		(−171)24.5 − 7.5
(+23−6=3)
76.6%
24.5 / 32
100.0%
+49
52.0%
2282
0.75
1186
0 0 0 = 1 1 0 = 1 1 1 1 1 1 1 1 1 1 1 0 1 1 1 1 1 0 1 1 1 1 1 =
–   Matheus 2.32144+15
−15		(−201)21 − 5
(+19−3=4)
80.8%
21.0 / 26
100.0%
+49
56.6%
1729
1.03
978
1 1 1 = 1 1 0 1 1 1 = = 1 1 1 1 1 1 = 1 0 0 1 1 1 1
–   Bodo 0.2b2137+15
−15		(−208)21.5 − 3.5
(+19−1=5)
86.0%
21.5 / 25
100.0%
+78
54.5%
1390
0.74
757
= = 1 1 1 1 1 1 = = 1 1 1 1 1 1 1 1 1 1 = 1 1 1 0
–   Bestia 0.902122+15
−15		(−223)22.5 − 4.5
(+21−3=3)
83.3%
22.5 / 27
100.0%
+62
54.8%
2130
0.90
1167
1 1 1 1 1 1 1 1 1 0 = 1 1 0 1 1 1 = 1 1 0 1 1 = 1 1 1
–   Ax 0.82119+15
−15		(−226)23.5 − 4.5
(+20−1=7)
83.9%
23.5 / 28
100.0%
+27
  
= 1 1 = 1 1 1 1 1 1 = 1 1 1 = 1 1 1 1 1 1 = = 1 = 1 0 1
–   DelphiMax 2.92102+16
−16		(−243)23 − 5
(+19−1=8)
82.1%
23.0 / 28
100.0%
−10
58.7%
1831
1.06
1075
1 1 1 = 1 1 = = 1 1 = 1 = 1 = 1 0 = = 1 1 1 1 1 1 1 1 1
–   Elephant 1.062075+16
−16		(−270)21 − 4
(+19−2=4)
84.0%
21.0 / 25
100.0%
+8
52.2%
1822
1.09
951
1 1 0 1 1 1 1 = 1 1 1 1 1 = 1 = 1 1 1 = 1 1 1 0 1
–   JanWillem 1.132062+16
−16		(−283)22 − 2
(+22−2=0)
91.7%
22.0 / 24
100.0%
+181
53.9%
2120
1.10
1142
1 1 1 1 1 1 1 0 1 0 1 1 1 1 1 1 1 1 1 1 1 1 1 1
–   Faile 1.4.42042+15
−15		(−303)25.5 − 2.5
(+23−0=5)
91.1%
25.5 / 28
100.0%
+44
52.8%
1813
1.12
958
1 = 1 = 1 1 1 1 = 1 1 = 1 1 1 1 1 1 1 1 1 = 1 1 1 1 1 1
–   Sharper 0.172022+16
−16		(−323)23.5 − 3.5
(+21−1=5)
87.0%
23.5 / 27
100.0%
−22
52.0%
1954
1.04
1016
1 1 1 1 0 1 = 1 = 1 1 1 = 1 1 1 = 1 1 = 1 1 1 1 1 1 1
1811 games in total: 786 wins, 635 losses, 390 draws (21.5%), score: 54.2%
Average opponent: −33.8 (2311.2), average distance to opponent: 105.7

Performance

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

Perf = C − 0.172 [±0.111] * 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