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

Options
Show each game results
Amateur 2.82 WB#79  (2446+15
−15		)Quote
Author: Will Singleton (USA) Released: 2005-01-30Link: WBEC
This engine is stable and runs without issues.
This is the only Amateur version we tested.
OpponentEloDiffResultsScoreLOSPerfPond
hit		Eval
diff
–   Amyan 1.5972552+17
−17		(+106)12.5 − 14.5
(+9−11=7)
46.3%
12.5 / 27
0.0%
+81
54.1%
2329
1.09
1259
= = 1 1 = = 0 0 0 0 = 1 0 = 0 1 1 1 = 0 0 0 1 0 1 0 1
–   Matacz 1.3 HT74 5-men-egbb2551+18
−18		(+105)7 − 17
(+3−13=8)
29.2%
7.0 / 24
0.0%
−32
59.0%
1633
0.80
963
0 1 0 = 1 0 = 0 0 0 0 1 0 = = 0 0 = = 0 = = 0 0
–   SpiderChess 0706032546+17
−17		(+100)10.5 − 17.5
(+5−12=11)
37.5%
10.5 / 28
0.0%
+19
54.4%
1644
0.87
895
= 1 0 0 0 = 0 0 = = 0 = = 0 1 = 1 1 0 = = = 0 1 0 0 = 0
–   Quark 2.352536+16
−16		(+90)7 − 16
(+4−13=6)
30.4%
7.0 / 23
0.0%
−50
56.1%
1616
0.99
906
0 1 0 = 0 = 1 0 0 = 0 0 0 = 0 0 0 = 1 1 0 = 0
–   King of Kings 2.562536+18
−18		(+90)10 − 15
(+7−12=6)
40.0%
10.0 / 25
0.0%
+19
54.3%
2021
0.80
1098
0 0 0 0 1 = 0 0 = 0 0 0 1 = 1 0 0 = = 1 = 1 0 1 1
–   LambChop 10.992531+17
−17		(+85)6 − 17
(+3−14=6)
26.1%
6.0 / 23
0.0%
−89
51.4%
1727
0.95
887
1 = 0 0 = = = = 0 1 0 0 0 0 0 0 0 0 0 0 1 0 =
–   Dragon 4.62524+16
−16		(+78)10.5 − 16.5
(+8−14=5)
38.9%
10.5 / 27
0.0%
−4
55.7%
1769
0.82
985
0 0 = 0 0 0 0 0 = 1 = 0 1 0 0 0 0 1 = 1 1 1 0 1 = 1 0
–   Snitch 1.6.2 32-bit2521+15
−15		(+75)9.5 − 20.5
(+6−17=7)
31.7%
9.5 / 30
0.0%
−59
53.9%
2243
1.15
1209
0 0 0 0 = 0 0 1 1 = = = 0 = 1 0 0 0 1 0 0 = 0 0 0 1 = 1 0 0
–   Nejmet 3.072521+16
−16		(+75)10 − 18
(+6−14=8)
35.7%
10.0 / 28
0.0%
−22
55.0%
1661
0.77
914
= 0 0 0 0 1 1 = = 1 0 = = 0 0 0 1 0 0 = = 0 0 1 0 0 = 1
–   RomiChess P3k 64-bit2502+18
−18		(+56)12 − 20
(+7−15=10)
37.5%
12.0 / 32
0.0%
−27
61.6%
2177
0.94
1342
= 1 0 = 1 0 1 1 0 = 0 0 0 1 1 = 0 = = = 0 = = = 0 0 0 0 0 0 1 0
–   Amy 0.8.7b DC2500+17
−17		(+54)11.5 − 16.5
(+9−14=5)
41.1%
11.5 / 28
0.0%
−8
55.2%
2245
0.91
1239
0 1 1 1 0 1 0 = 1 1 1 = = 1 0 0 0 0 0 0 0 0 1 = 0 0 0 =
–   KnightDreamer 3.32499+16
−16		(+53)13 − 13
(+10−10=6)
50.0%
13.0 / 26
0.0%
+54
50.3%
2283
1.06
1148
= = = 1 1 0 0 0 1 1 1 0 1 0 = 0 0 0 1 = 0 1 0 1 1 =
–   Francesca MAD 0.13 Nobook2493+19
−19		(+47)10 − 13
(+8−11=4)
43.5%
10.0 / 23
0.0%
−4
59.9%
1737
1.08
1040
= 1 0 0 1 1 1 0 0 1 0 0 0 = 0 1 = 0 = 0 1 0 1
–   Leila 0.53h2490+17
−17		(+44)15.5 − 12.5
(+13−10=5)
55.4%
15.5 / 28
0.0%
+85
52.8%
2428
1.35
1282
1 1 = 1 = 0 0 1 1 1 1 0 0 0 0 0 1 1 0 0 = 1 = 1 0 = 1 1
–   Diablo 0.5.1 JA2482+16
−16		(+36)17 − 15
(+14−12=6)
53.1%
17.0 / 32
0.0%
+57
58.3%
2475
1.10
1443
0 1 = 1 1 1 0 = = 1 0 1 0 0 0 0 0 0 = 0 1 1 1 1 1 1 0 1 = 1 = 0
–   PostModernist 10162480+16
−16		(+34)12 − 20
(+8−16=8)
37.5%
12.0 / 32
0.1%
−55
59.2%
2173
0.78
1286
1 = 0 0 0 = 0 0 = 1 0 1 0 1 1 = 0 = 0 0 0 0 1 0 = = 1 0 = 1 0 0
–   Djinn 0.925x2479+16
−16		(+33)12.5 − 13.5
(+9−10=7)
48.1%
12.5 / 26
0.1%
+21
53.9%
1797
1.08
969
0 = 0 = = 1 1 = 1 1 1 0 0 = = 1 0 1 0 0 1 1 0 0 0 =
–   Comet B682478+14
−14		(+32)13.5 − 10.5
(+11−8=5)
56.3%
13.5 / 24
0.1%
+78
53.3%
1808
1.13
964
0 0 = 0 0 1 1 0 1 1 0 1 1 1 = 0 0 = = = 1 1 1 1
–   Sjeng 12.132475+14
−14		(+29)14.5 − 11.5
(+13−10=3)
55.8%
14.5 / 26
0.2%
+71
55.8%
1891
0.95
1055
1 1 0 1 0 = 0 1 = 1 0 1 1 1 0 0 0 0 = 1 1 1 0 0 1 1
–   Muse 0.899b2474+16
−16		(+28)11.5 − 15.5
(+10−14=3)
42.6%
11.5 / 27
0.4%
−33
51.7%
2555
0.87
1321
0 0 = 1 1 1 0 0 1 1 0 1 0 1 1 = 0 = 0 0 0 0 0 1 0 1 0
–   Queen 4.032466+17
−17		(+20)16.5 − 15.5
(+13−12=7)
51.6%
16.5 / 32
3.8%
+29
55.7%
2268
0.99
1264
1 0 1 1 = 0 0 1 1 0 1 0 = 0 = 1 1 0 0 0 0 0 1 1 = 0 1 1 1 = = =
–   Patzer 3.802460+16
−16		(+14)11.5 − 20.5
(+7−16=9)
35.9%
11.5 / 32
10.2%
−82
49.9%
2071
1.10
1033
0 = 0 0 0 1 = 0 = 1 1 0 0 0 0 1 0 = 0 = = 1 = 0 1 1 = 0 0 0 0 =
–   The Crazy Bishop 00522460+15
−15		(+14)12 − 13
(+9−10=6)
48.0%
12.0 / 25
9.1%
+1
56.8%
1983
1.10
1126
= 0 1 0 0 = 1 = 0 0 0 0 1 1 0 = 1 1 = 1 1 = 0 0 1
–   Gosu 0.162455+16
−16		(+9)17.5 − 14.5
(+14−11=7)
54.7%
17.5 / 32
20.6%
+40
52.5%
2531
1.20
1328
0 0 1 0 1 = 0 1 1 0 1 0 0 = 1 1 1 = 1 1 0 0 1 = 0 0 1 1 1 = = =
–   Der Bringer 1.92455+15
−15		(+9)10 − 12
(+9−11=2)
45.5%
10.0 / 22
19.6%
−24
56.2%
1819
0.88
1023
= 1 0 0 0 1 0 0 0 1 0 1 0 0 1 1 1 1 1 0 = 0
–   Homer 2.012452+17
−17		(+6)12 − 20
(+10−18=4)
37.5%
12.0 / 32
30.5%
−94
55.7%
2318
0.82
1292
0 1 0 0 1 1 0 0 0 0 0 0 0 0 0 = 1 1 1 0 0 1 0 0 1 = 0 = 1 0 1 =
–   Phalanx XXII Reborn JA2452+15
−15		(+6)13 − 9
(+12−8=2)
59.1%
13.0 / 22
27.7%
+79
53.4%
1711
0.99
913
1 1 1 0 0 1 1 0 0 0 1 1 1 = = 1 1 0 0 0 1 1
–   Betsy 6.51 Nobook2450+15
−15		(+4)11 − 14
(+9−12=4)
44.0%
11.0 / 25
34.7%
−42
54.8%
2147
1.15
1177
0 1 1 0 = 0 0 0 = 1 0 = = 1 1 1 0 1 0 1 0 0 1 0 0
–   GNU Chess 5.07.9b 64-bit JA2448+16
−16		(+2)17 − 15
(+14−12=6)
53.1%
17.0 / 32
42.3%
+25
53.3%
2165
1.11
1154
= 0 0 1 0 1 = = 0 1 0 1 1 1 = 0 0 0 1 = 0 0 1 1 1 1 0 1 0 1 1 =
–   Tytan 9.32 64-bit2429+17
−17		(−17)19.5 − 12.5
(+15−8=9)
60.9%
19.5 / 32
94.4%
+60
  
1 1 = 1 1 = 0 1 = = = 1 0 1 1 0 = 1 = 1 = 0 1 0 1 0 1 1 0 0 1 =
–   Sage 3.532424+19
−19		(−22)16 − 16
(+12−12=8)
50.0%
16.0 / 32
96.9%
−23
54.4%
1887
1.01
1026
= 0 1 1 0 = = 1 0 0 = 0 1 = 0 = 0 1 0 = 1 0 1 1 0 0 0 1 1 = 1 1
–   Sorgenkind 0.42421+18
−18		(−25)15.5 − 16.5
(+14−15=3)
48.4%
15.5 / 32
98.5%
−39
52.0%
3190
1.24
1660
0 = 0 0 1 = 1 0 0 0 0 1 1 0 1 0 1 0 1 0 1 1 0 0 0 1 1 1 1 = 1 0
–   Horizon 4.42419+18
−18		(−27)13.5 − 18.5
(+12−17=3)
42.2%
13.5 / 32
99.1%
−90
52.2%
2624
1.14
1370
0 = 0 1 0 0 = 0 1 0 1 1 0 1 0 1 1 0 0 0 1 0 0 1 1 = 1 0 0 1 0 0
–   Thor's Hammer 2.28 32-bit2417+15
−15		(−29)9.5 − 19.5
(+8−18=3)
32.8%
9.5 / 29
99.7%
−169
53.6%
2651
1.05
1421
1 0 0 1 0 0 1 = 0 = 0 1 0 0 0 0 0 0 0 1 1 1 0 0 0 1 = 0 0
–   Arion 1.72415+16
−16		(−31)17 − 10
(+12−5=10)
63.0%
17.0 / 27
99.8%
+56
57.6%
1445
1.40
832
1 = 0 1 1 = 0 = 1 0 1 = = = 1 = 0 = = 0 1 1 = 1 1 1 1
–   AICE 0.99.22411+16
−16		(−35)19.5 − 12.5
(+15−8=9)
60.9%
19.5 / 32
100.0%
+38
51.2%
2057
1.15
1053
= = 0 = 1 1 0 0 0 = 1 1 1 1 0 = 1 = 1 0 1 0 1 1 = = 0 1 = 1 1 1
–   Chezzz 1.0.32409+15
−15		(−37)8 − 17
(+5−14=6)
32.0%
8.0 / 25
100.0%
−164
55.2%
1717
1.09
947
= 1 0 = 0 0 1 = 0 0 0 0 0 0 0 = 1 = 0 1 = 0 1 0 0
–   Asterisk 0.62402+17
−17		(−44)21.5 − 10.5
(+17−6=9)
67.2%
21.5 / 32
100.0%
+74
52.3%
2662
1.10
1392
1 1 1 1 1 1 1 = 0 = 0 1 1 1 1 0 = 1 1 = = = 1 = 1 0 1 1 = = 0 0
–   Resp 0.19 64-bit JA Nobook2402+16
−16		(−44)7.5 − 5.5
(+7−5=1)		57.7%
7.5 / 13
100.0%
+24
50.0%
1259
0.91
630
1 1 1 0 1 1 = 0 0 1 1 0 0
–   Averno 0.812396+15
−15		(−50)17.5 − 11.5
(+14−8=7)
60.3%
17.5 / 29
100.0%
+24
54.0%
1880
1.00
1016
= = 1 0 1 0 1 1 = 1 0 = 1 1 = 1 0 = 1 0 1 1 1 0 1 0 0 1 =
–   Scidlet 3.61 64-bit JA2390+15
−15		(−56)12 − 12
(+9−9=6)
50.0%
12.0 / 24
100.0%
−58
58.9%
1570
1.13
925
0 1 = 1 0 1 1 0 1 1 0 1 0 0 = 0 = 1 1 = 0 0 = =
–   KnightX 1.922385+15
−15		(−61)14.5 − 10.5
(+12−8=5)
58.0%
14.5 / 25
100.0%
−2
54.3%
1884
0.77
1023
1 = 0 0 1 1 1 1 1 1 = 1 = = 1 1 0 0 0 0 1 1 = 0 0
–   Eeyore 1.482384+15
−15		(−62)16 − 8
(+14−6=4)
66.7%
16.0 / 24
100.0%
+72
53.9%
1873
1.50
1009
= 1 1 1 1 0 0 0 = 0 0 1 1 1 1 1 1 1 1 1 0 = = 1
–   Ayito 0.2.9942371+16
−16		(−75)14 − 14
(+13−13=2)
50.0%
14.0 / 28
100.0%
−73
54.7%
2431
1.19
1330
1 1 1 0 0 1 1 = 0 1 1 0 0 1 0 0 1 0 = 0 1 1 0 1 0 1 0 0
–   Matilde 2008 64-bit2368+15
−15		(−78)16.5 − 15.5
(+13−12=7)
51.6%
16.5 / 32
100.0%
−66
54.9%
2011
1.33
1105
1 1 0 0 1 1 1 0 0 0 1 0 0 1 = = 0 1 1 1 1 = 0 1 0 = 1 = = 0 = 0
–   Natwarlal 0.142359+17
−17		(−87)21.5 − 10.5
(+19−8=5)
67.2%
21.5 / 32
100.0%
+45
55.3%
2589
1.06
1432
0 = = 1 1 0 1 1 1 1 0 1 1 1 0 1 = 1 1 1 1 1 1 1 0 1 0 0 0 = = 1
–   EXchess 5.01 beta 64-bit JA2355+14
−14		(−91)21 − 9
(+18−6=6)
70.0%
21.0 / 30
100.0%
+57
58.1%
2049
1.01
1190
= 1 1 = 1 1 1 1 1 1 1 1 = 1 1 1 1 0 = 0 0 = 1 0 1 = 1 0 1 0
–   Zeus 1.292346+16
−16		(−100)21.5 − 10.5
(+17−6=9)
67.2%
21.5 / 32
100.0%
+17
54.7%
2019
1.02
1104
1 = 1 1 0 1 1 1 = = 1 1 = 0 0 1 0 = = 1 1 1 1 = 1 1 0 = 1 = 0 1
–   Esc 1.162345+15
−15		(−101)16.5 − 8.5
(+14−6=5)
66.0%
16.5 / 25
100.0%
+12
53.1%
2272
0.86
1206
1 = 1 1 = 0 0 1 1 0 0 = 1 0 1 1 1 0 = 1 1 1 = 1 1
–   ANT 2006-F2333+16
−16		(−113)17.5 − 9.5
(+15−7=5)
64.8%
17.5 / 27
100.0%
−2
50.2%
2064
1.25
1037
= 1 1 0 1 1 1 1 0 0 0 1 = 1 1 0 1 1 1 = 1 0 1 = 1 = 0
–   GNU Chess 5.07 64-bit JA2332+22
−22		(−114)13 − 11
(+11−9=4)
54.2%
13.0 / 24
100.0%
−82
52.7%
1354
1.02
714
1 = 1 0 = 0 0 0 = 1 = 1 1 0 0 0 1 1 1 0 0 1 1 1
–   Anechka 0.082320+16
−16		(−126)18 − 14
(+14−10=8)
56.3%
18.0 / 32
100.0%
−79
55.1%
2212
1.23
1218
= = 1 0 = 0 1 1 1 1 0 1 1 = 1 0 1 1 1 = 0 0 0 1 1 = 0 1 0 = 0 =
–   Dorky 3.482308+16
−16		(−138)16.5 − 12.5
(+14−10=5)
56.9%
16.5 / 29
100.0%
−86
54.4%
2627
1.33
1428
1 0 1 0 1 0 1 1 0 1 0 1 1 0 = 1 0 1 = = 1 0 = = 0 1 0 1 1
–   CyberPagno 2.1 32MB2295+16
−16		(−151)22 − 7
(+19−4=6)
75.9%
22.0 / 29
100.0%
+44
55.8%
1718
1.29
958
1 = 1 1 1 1 = 1 = 1 0 0 1 1 1 1 1 1 = 1 1 = 1 1 0 1 0 = 1
–   Latista (Sinobyl) 1.52289+16
−16		(−157)22.5 − 3.5
(+21−2=3)
86.5%
22.5 / 26
100.0%
+165
52.7%
1957
1.39
1032
1 0 1 1 1 1 1 = 1 0 1 1 = 1 1 1 1 1 1 1 1 = 1 1 1 1
–   Madeleine 0.22285+15
−15		(−161)17.5 − 10.5
(+14−7=7)
62.5%
17.5 / 28
100.0%
−72
53.3%
1671
1.28
890
1 0 = = = = 1 0 1 0 0 1 1 1 1 1 0 1 0 = 1 0 1 = = 1 1 1
–   Chispa 4.0.32273+14
−14		(−173)21.5 − 8.5
(+16−3=11)
71.7%
21.5 / 30
100.0%
−32
53.5%
1691
1.43
905
= 0 1 = 1 1 1 = = 0 = = 1 1 1 1 = 1 1 = 1 1 = 1 1 1 0 = 1 =
–   Atlas 2.202271+17
−17		(−175)24 − 2
(+23−1=2)
92.3%
24.0 / 26
100.0%
+244
  
1 1 1 1 = 1 0 1 1 = 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1
–   InmiChess 3.06N2241+15
−15		(−205)19.5 − 4.5
(+18−3=3)
81.3%
19.5 / 24
100.0%
+54
55.4%
1874
1.12
1038
1 1 1 1 0 = 1 = 1 1 0 1 1 1 0 1 1 1 1 1 = 1 1 1
–   Nesik 0.7.0 alpha2237+16
−16		(−209)24 − 5
(+22−3=4)
82.8%
24.0 / 29
100.0%
+61
56.6%
2031
1.07
1149
1 1 1 1 1 1 1 1 1 1 = 1 1 1 1 1 1 1 1 = 1 0 1 = 1 0 1 0 =
–   Sunsetter C10.3 64-bit JA2232+16
−16		(−214)21 − 6
(+19−4=4)
77.8%
21.0 / 27
100.0%
+10
57.2%
2034
1.30
1164
= 1 0 1 1 1 0 1 1 1 0 = 1 1 1 1 = 1 1 1 0 1 = 1 1 1 1
–   Fortress 1.622216+15
−15		(−230)20.5 − 5.5
(+19−4=3)
78.8%
20.5 / 26
100.0%
+13
54.5%
1395
1.37
760
1 1 1 1 1 1 1 1 1 1 = = 1 0 1 1 0 = 0 1 1 1 1 1 0 1
–   WJChess 1.642215+16
−16		(−231)18.5 − 2.5
(+17−1=3)
88.1%
18.5 / 21
100.0%
+99
59.3%
1088
1.09
645
1 1 1 1 1 = 1 = 1 1 1 1 1 = 0 1 1 1 1 1 1
–   Gk 0.90 64-bit JA2194+16
−16		(−252)20.5 − 1.5
(+19−0=3)
93.2%
20.5 / 22
100.0%
+141
53.3%
1494
1.67
796
= 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 = 1 1 = 1 1
–   Bodo 0.2b2137+15
−15		(−309)20 − 3
(+19−2=2)
87.0%
20.0 / 23
100.0%
+28
53.3%
1482
1.19
790
1 0 1 = 1 1 = 1 1 1 1 1 1 1 1 1 1 1 1 0 1 1 1
1783 games in total: 800 wins, 620 losses, 363 draws (20.4%), score: 55.0%
Average opponent: −40.0 (2406), average distance to opponent: 80.0

Performance

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

Perf = C − 0.167 [±0.173] * 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