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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Thor's Hammer 2.28 32-bit WB#84  (2417+15
−15		)Quote
Author: Toma Roncevic (Croatia) Released: 2005-07-22Links: Homepage, Jim Ablett's compile
This is the original compile from the homepage. Jim Ablett's 64-bit compile is faster, but has broken EGTB support (it basically loses every EGTB position), which is why it is not participating in this tournament.
Issues with this engine: Frequent losses on time.
This is the only Thor's Hammer version we tested.
OpponentEloDiffResultsScoreLOSPerfPond
hit		Eval
diff
–   Quark 2.352536+16
−16		(+119)13 − 14
(+10−11=6)
48.1%
13.0 / 27
0.0%
+106
56.0%
1942
0.79
1087
0 1 = 0 = 0 = 0 0 1 1 = = 0 0 0 1 0 0 1 0 1 1 = 1 1 1
–   King of Kings 2.562536+18
−18		(+119)4 − 20
(+4−20=0)
16.7%
4.0 / 24
0.0%
−207
50.9%
1859
0.93
946
1 0 0 0 0 1 0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0
–   Dragon 4.62524+16
−16		(+107)7.5 − 18.5
(+6−17=3)
28.8%
7.5 / 26
0.0%
−64
57.4%
2161
0.81
1240
0 0 0 1 1 1 0 = 0 0 0 = 0 0 0 0 1 0 = 0 0 0 0 1 1 0
–   Snitch 1.6.2 32-bit2521+15
−15		(+104)5 − 20
(+2−17=6)
20.0%
5.0 / 25
0.0%
−118
53.0%
1370
0.94
726
0 1 = 0 0 0 0 0 = 0 0 0 = 0 = 0 0 0 = = 0 0 0 0 1
–   Nejmet 3.072521+16
−16		(+104)7.5 − 22.5
(+6−21=3)
25.0%
7.5 / 30
0.0%
−102
57.8%
2349
0.82
1357
0 0 0 1 = 0 0 1 1 0 0 0 1 0 0 = 0 1 0 0 1 = 0 0 0 0 0 0 0 0
–   Amy 0.8.7b DC2500+17
−17		(+83)12 − 15
(+9−12=6)
44.4%
12.0 / 27
0.0%
+42
55.2%
1930
0.68
1066
= 1 1 0 0 0 0 0 1 1 0 0 = = 1 1 1 1 1 = = 0 0 0 = 0 0
–   KnightDreamer 3.32499+16
−16		(+82)6.5 − 18.5
(+3−15=7)
26.0%
6.5 / 25
0.0%
−87
53.6%
1889
0.71
1012
= 0 = 1 0 0 0 0 0 1 0 0 0 0 0 0 0 = = 0 = 0 1 = =
–   Francesca MAD 0.13 Nobook2493+19
−19		(+76)4.5 − 16.5
(+4−16=1)
21.4%
4.5 / 21
0.0%
−181
61.4%
1887
0.84
1158
0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 1 0 = 0 0 1
–   Leila 0.53h2490+17
−17		(+73)10 − 17
(+7−14=6)
37.0%
10.0 / 27
0.0%
−19
55.5%
2151
0.88
1193
0 = = 0 0 0 0 0 = 1 1 1 = 0 0 1 = = 0 1 0 1 0 0 0 0 1
–   Diablo 0.5.1 JA2482+16
−16		(+65)16 − 16
(+11−11=10)
50.0%
16.0 / 32
0.0%
+65
60.1%
2055
0.77
1235
0 0 = 1 0 0 1 = 0 = 1 0 1 0 = 0 0 1 0 = = 1 = = 1 1 1 0 = = 1 1
–   PostModernist 10162480+16
−16		(+63)14.5 − 17.5
(+10−13=9)
45.3%
14.5 / 32
0.0%
+31
61.1%
2218
0.70
1355
1 0 0 0 = = 1 1 0 0 0 0 0 0 = = 1 1 = 1 = 1 = = 0 0 1 1 0 1 0 =
–   Djinn 0.925x2479+16
−16		(+62)13 − 11
(+10−8=6)
54.2%
13.0 / 24
0.0%
+89
59.9%
1590
0.97
952
1 1 0 1 0 1 = 1 0 = 1 1 1 0 = 0 0 1 0 = = 1 0 =
–   Comet B682478+14
−14		(+61)14.5 − 13.5
(+12−11=5)
51.8%
14.5 / 28
0.0%
+76
53.5%
1766
0.93
944
= 1 0 1 = 1 0 1 1 1 0 0 0 0 1 0 1 = 1 = 1 0 0 1 = 1 0 0
–   Sjeng 12.132475+14
−14		(+58)9 − 16
(+4−11=10)
36.0%
9.0 / 25
0.0%
−30
58.5%
1488
0.75
871
0 1 = = 0 = = = 0 0 0 0 0 1 = 0 0 = 1 = = 0 0 = 1
–   Muse 0.899b2474+16
−16		(+57)11.5 − 15.5
(+8−12=7)
42.6%
11.5 / 27
0.0%
+5
54.1%
1576
0.90
853
= 0 0 0 = 0 0 0 = 0 1 1 0 0 0 1 1 1 1 0 1 = 1 = = 0 =
–   Queen 4.032466+17
−17		(+49)11.5 − 20.5
(+7−16=9)
35.9%
11.5 / 32
0.0%
−48
55.1%
2728
0.72
1504
1 0 = 1 0 0 0 = = = = 1 0 1 1 1 1 = 0 0 0 = 0 0 0 0 0 0 = = 0 0
–   Patzer 3.802460+16
−16		(+43)13.5 − 18.5
(+10−15=7)
42.2%
13.5 / 32
0.0%
−13
52.8%
2420
1.04
1277
= 0 0 0 1 1 0 1 1 0 0 0 0 0 1 = = 1 0 = 1 0 = 0 0 1 = = 1 0 1 0
–   The Crazy Bishop 00522460+15
−15		(+43)11.5 − 17.5
(+7−13=9)
39.7%
11.5 / 29
0.0%
−29
56.4%
2095
0.94
1181
= 1 0 = 0 0 = 1 0 1 1 = = 0 0 = 0 0 = 0 1 0 0 = 0 = 0 1 1
–   Gosu 0.162455+16
−16		(+38)14.5 − 17.5
(+10−13=9)
45.3%
14.5 / 32
0.0%
+3
53.0%
1788
1.14
947
1 = 0 1 0 1 0 0 = 1 1 0 0 1 = 0 0 = 0 = 0 = 0 1 0 = 1 = 1 1 0 =
–   Der Bringer 1.92455+15
−15		(+38)13 − 11
(+10−8=6)
54.2%
13.0 / 24
0.0%
+69
56.9%
1503
0.80
855
1 0 = 1 0 1 = 0 0 0 1 = = 0 1 0 1 1 0 = = 1 1 1
–   Homer 2.012452+17
−17		(+35)16 − 16
(+11−11=10)
50.0%
16.0 / 32
0.1%
+33
54.0%
2222
0.89
1200
1 0 0 1 0 0 = = 1 0 1 = 1 = = 0 1 = 1 0 1 1 1 = 0 0 = 0 1 0 = =
–   Phalanx XXII Reborn JA2452+15
−15		(+35)10.5 − 15.5
(+9−14=3)
40.4%
10.5 / 26
0.0%
−43
53.9%
2077
0.86
1120
1 1 0 = 0 0 0 0 1 0 0 1 1 0 0 0 0 0 1 0 1 0 = 1 = 1
–   Betsy 6.51 Nobook2450+15
−15		(+33)14 − 14
(+12−12=4)
50.0%
14.0 / 28
0.1%
+32
56.1%
2064
0.92
1157
0 1 = 0 = 1 0 0 0 = 1 1 1 0 = 1 0 1 1 1 0 1 1 0 0 1 0 0
–   GNU Chess 5.07.9b 64-bit JA2448+16
−16		(+31)16 − 16
(+14−14=4)
50.0%
16.0 / 32
0.2%
+31
53.5%
2649
0.80
1417
1 1 0 1 1 1 0 0 1 0 0 0 0 0 1 = 1 1 = 0 1 0 1 1 1 0 0 0 0 1 = =
–   Amateur 2.822446+15
−15		(+29)19.5 − 9.5
(+18−8=3)
67.2%
19.5 / 29
0.3%
+169
53.6%
2651
1.05
1421
0 1 1 0 1 1 0 = 1 = 1 0 1 1 1 1 1 1 1 0 0 0 1 1 1 0 = 1 1
–   Tytan 9.32 64-bit2429+17
−17		(+12)14 − 18
(+10−14=8)
43.8%
14.0 / 32
15.0%
−31
  
0 1 = = 1 1 0 1 = = 0 = 0 1 0 = 0 1 0 0 = 0 0 0 = 0 1 0 0 1 1 1
–   Sage 3.532424+19
−19		(+7)14 − 18
(+12−16=4)
43.8%
14.0 / 32
26.9%
−42
52.0%
2881
1.05
1497
1 0 1 = = 0 1 1 0 1 0 0 0 = 0 1 1 0 0 1 0 = 0 0 0 1 1 0 0 1 0 1
–   Sorgenkind 0.42421+18
−18		(+4)19 − 13
(+17−11=4)
59.4%
19.0 / 32
37.6%
+78
53.3%
2734
1.19
1457
0 = 0 1 = 1 1 1 1 0 0 0 0 1 1 1 = 1 = 1 1 1 0 1 0 1 1 1 0 1 0 0
–   Horizon 4.42419+18
−18		(+2)14 − 18
(+10−14=8)
43.8%
14.0 / 32
43.9%
−42
51.8%
2117
1.58
1096
0 1 1 1 0 = 0 0 1 1 0 1 1 = 1 0 = 0 0 0 = 1 0 0 1 0 = 0 = = 0 =
–   Arion 1.72415+16
−16		(−2)14 − 16
(+11−13=6)
46.7%
14.0 / 30
58.6%
−25
60.7%
2294
0.92
1393
0 1 1 = = 1 0 = = 0 = 0 1 0 0 1 1 0 0 = 0 1 1 1 0 0 0 1 1 0
–   AICE 0.99.22411+16
−16		(−6)11 − 21
(+8−18=6)
34.4%
11.0 / 32
71.2%
−121
52.8%
2315
0.89
1222
0 = 0 0 0 0 0 0 0 1 = 1 0 1 1 1 0 0 0 = = 1 0 0 0 0 = = 0 1 0 1
–   Chezzz 1.0.32409+15
−15		(−8)15.5 − 14.5
(+13−12=5)
51.7%
15.5 / 30
78.8%
+3
52.7%
2516
0.88
1327
1 = = 1 1 = 1 1 1 1 0 0 1 0 0 0 1 0 0 1 = 0 1 = 0 0 1 0 0 1
–   Asterisk 0.62402+17
−17		(−15)11 − 21
(+8−18=6)
34.4%
11.0 / 32
91.7%
−132
57.4%
2687
0.77
1543
0 0 = 0 0 = 0 = 0 = 0 0 0 1 1 0 0 1 1 0 = 1 1 0 1 0 0 0 0 0 = 1
–   Resp 0.19 64-bit JA Nobook2402+16
−16		(−15)14.5 − 6.5
(+12−4=5)
69.0%
14.5 / 21
91.5%
+119
56.5%
1379
0.93
779
= 1 1 = 1 0 1 1 1 1 0 1 0 1 = 0 = 1 = 1 1
–   Averno 0.812396+15
−15		(−21)10.5 − 14.5
(+8−12=5)
42.0%
10.5 / 25
98.0%
−81
57.4%
1722
0.74
988
= = 0 0 0 = = 1 1 1 1 1 0 0 1 1 0 0 = 0 0 1 0 0 0
–   Scidlet 3.61 64-bit JA2390+15
−15		(−27)10 − 13
(+9−12=2)
43.5%
10.0 / 23
99.5%
−78
57.6%
1720
0.79
991
1 0 1 0 1 = 1 0 0 1 0 0 = 0 0 0 1 0 1 1 0 1 0
–   KnightX 1.922385+15
−15		(−32)17 − 10
(+15−8=4)
63.0%
17.0 / 27
99.9%
+66
55.8%
2120
0.81
1183
= 0 1 1 1 0 1 0 0 = 1 = 0 1 1 0 1 1 1 0 = 1 0 1 1 1 1
–   Eeyore 1.482384+15
−15		(−33)16.5 − 9.5
(+14−7=5)
63.5%
16.5 / 26
99.9%
+67
56.8%
1902
1.14
1080
0 1 0 0 1 1 0 = = 1 1 0 = 1 = 1 0 0 1 1 1 = 1 1 1 1
–   Ayito 0.2.9942371+16
−16		(−46)15 − 13
(+14−12=2)
53.6%
15.0 / 28
100.0%
−16
53.5%
2407
1.04
1287
1 1 0 1 1 1 0 1 0 1 0 1 0 1 = 0 0 1 0 = 0 1 0 1 0 1 0 1
–   Matilde 2008 64-bit2368+15
−15		(−49)16.5 − 15.5
(+14−13=5)
51.6%
16.5 / 32
100.0%
−35
60.0%
2245
1.06
1348
1 0 0 = 1 1 1 1 0 = 0 = 0 0 1 0 1 0 0 0 = 1 0 1 1 = 1 1 1 0 0 1
–   Natwarlal 0.142359+17
−17		(−58)18 − 14
(+16−12=4)
56.3%
18.0 / 32
100.0%
−7
56.6%
2263
1.06
1281
0 1 1 0 0 1 1 0 = 0 1 1 0 1 = 1 = 0 1 = 0 1 1 0 1 1 0 0 1 1 0 1
–   EXchess 5.01 beta 64-bit JA2355+14
−14		(−62)19 − 8
(+15−4=8)
70.4%
19.0 / 27
100.0%
+81
57.2%
1759
0.64
1006
1 1 = 1 1 = 1 0 0 = 1 = 1 1 0 = 0 = 1 1 1 = = 1 1 1 1
–   Zeus 1.292346+16
−16		(−71)23 − 9
(+19−5=8)
71.9%
23.0 / 32
100.0%
+85
59.8%
2070
0.89
1237
= 1 1 0 = = 1 0 = = 1 1 = 1 1 0 1 1 = 1 1 1 1 1 1 0 0 1 1 1 1 =
–   Esc 1.162345+15
−15		(−72)14 − 12
(+13−11=2)
53.8%
14.0 / 26
100.0%
−42
53.7%
2545
0.66
1366
0 = 1 1 0 1 1 0 1 1 0 1 1 1 0 1 0 0 0 1 0 1 0 = 1 0
–   Popochin 3.22341+19
−19		(−76)19 − 13
(+15−9=8)
59.4%
19.0 / 32
100.0%
−8
55.9%
2606
0.64
1456
1 1 = 1 1 1 = 0 = 0 = 1 1 = 1 1 1 1 = 0 0 0 0 1 0 1 1 = 0 = 0 1
–   ANT 2006-F2333+16
−16		(−84)18 − 9
(+16−7=4)
66.7%
18.0 / 27
100.0%
+46
50.0%
2563
0.76
1281
0 0 1 1 1 1 1 1 = 0 0 0 1 1 1 1 0 = = 1 0 1 1 1 = 1 1
–   GNU Chess 5.07 64-bit JA2332+22
−22		(−85)13.5 − 11.5
(+11−9=5)
54.0%
13.5 / 25
100.0%
−54
51.5%
1405
0.68
723
1 = 0 0 1 0 1 = 1 1 0 = 1 0 1 1 1 1 = 0 = 0 0 0 1
–   Anechka 0.082320+16
−16		(−97)25 − 7
(+24−6=2)
78.1%
25.0 / 32
100.0%
+147
55.6%
2767
1.18
1539
0 1 0 1 1 1 0 1 1 1 1 1 0 1 1 1 1 = 1 = 1 1 1 1 1 1 0 1 1 0 1 1
–   Dorky 3.482308+16
−16		(−109)17.5 − 13.5
(+15−11=5)
56.5%
17.5 / 31
100.0%
−62
55.9%
2356
0.86
1316
= 0 1 1 1 1 1 1 = 0 1 1 0 0 0 = 0 1 1 1 1 = 1 1 0 0 0 1 0 0 =
–   CyberPagno 2.1 32MB2295+16
−16		(−122)17.5 − 7.5
(+16−6=3)
70.0%
17.5 / 25
100.0%
+37
55.1%
2194
1.03
1208
= 1 1 0 1 1 0 0 = 1 1 1 1 = 1 1 1 1 0 1 1 0 1 0 1
–   Latista (Sinobyl) 1.52289+16
−16		(−128)23.5 − 6.5
(+20−3=7)
78.3%
23.5 / 30
100.0%
+82
56.0%
2203
0.87
1233
1 = 1 1 1 1 0 = 1 = 1 = 1 1 1 1 = 1 1 0 1 = 1 1 0 1 1 1 1 =
–   Madeleine 0.22285+15
−15		(−132)18.5 − 8.5
(+17−7=3)
68.5%
18.5 / 27
100.0%
+16
55.7%
2344
1.12
1305
0 0 1 1 1 1 1 1 1 1 1 1 0 = 1 0 0 0 1 1 1 1 1 = = 1 0
–   Chispa 4.0.32273+14
−14		(−144)19 − 6
(+16−3=6)
76.0%
19.0 / 25
100.0%
+44
57.0%
1527
1.17
870
0 = 0 1 1 1 = 1 1 = = = = 1 1 1 1 1 1 1 1 1 1 0 1
–   Atlas 2.202271+17
−17		(−146)19 − 8
(+17−6=4)
70.4%
19.0 / 27
100.0%
+10
  
1 1 1 0 1 0 1 1 0 1 1 1 = 1 0 0 1 = 0 1 1 1 1 = 1 = 1
–   Genesis 2.02247+16
−16		(−170)17.5 − 10.5
(+16−9=3)
62.5%
17.5 / 28
100.0%
−67
55.6%
2371
0.86
1318
0 1 0 = 1 1 1 0 1 1 0 1 = 1 1 0 1 1 1 0 1 0 1 1 0 0 1 =
–   InmiChess 3.06N2241+15
−15		(−176)24 − 4
(+21−1=6)
85.7%
24.0 / 28
100.0%
+102
57.2%
1622
1.19
927
1 1 1 1 = 1 1 1 1 = 1 1 1 0 = 1 1 1 1 1 1 = 1 = = 1 1 1
–   Nesik 0.7.0 alpha2237+16
−16		(−180)17 − 7
(+14−4=6)
70.8%
17.0 / 24
100.0%
−31
57.9%
1780
0.93
1031
1 1 1 = = 0 0 0 1 1 1 1 1 1 1 1 0 = = 1 1 = 1 =
–   Sunsetter C10.3 64-bit JA2232+16
−16		(−185)21 − 7
(+19−5=4)
75.0%
21.0 / 28
100.0%
+14
52.4%
1778
1.07
931
1 1 1 0 0 0 1 = = 1 1 0 = 1 1 1 1 1 1 1 1 1 1 0 1 1 = 1
–   Fortress 1.622216+15
−15		(−201)17.5 − 7.5
(+13−3=9)
70.0%
17.5 / 25
100.0%
−68
56.1%
1134
1.22
636
= = 1 0 = 1 = 1 = 1 = 1 1 1 1 1 0 0 1 1 = 1 = = 1
–   WJChess 1.642215+16
−16		(−202)19.5 − 4.5
(+17−2=5)
81.3%
19.5 / 24
100.0%
+39
52.8%
1547
1.07
817
= = 1 0 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		(−223)18.5 − 4.5
(+16−2=5)
80.4%
18.5 / 23
100.0%
+5
52.4%
1778
1.14
932
0 1 = 1 1 1 = 1 1 1 1 1 1 0 1 1 1 1 = = 1 1 =
–   Matheus 2.32144+15
−15		(−273)23 − 6
(+22−5=2)
79.3%
23.0 / 29
100.0%
−16
53.7%
1859
1.18
998
1 0 1 1 1 1 0 1 1 1 1 1 1 1 1 = 1 0 0 1 1 1 = 1 0 1 1 1 1
–   Bodo 0.2b2137+15
−15		(−280)20 − 5
(+19−4=2)
80.0%
20.0 / 25
100.0%
−18
55.6%
1566
0.92
870
1 0 1 1 1 1 0 1 1 1 0 1 1 0 1 = 1 = 1 1 1 1 1 1 1
–   Bestia 0.902122+15
−15		(−295)21 − 2
(+20−1=2)
91.3%
21.0 / 23
100.0%
+101
54.9%
1518
0.99
833
1 1 1 1 1 1 1 1 1 1 0 1 = = 1 1 1 1 1 1 1 1 1
–   Ax 0.82119+15
−15		(−298)22 − 5
(+20−3=4)
81.5%
22.0 / 27
100.0%
−39
  
0 1 1 1 1 1 1 1 = 1 1 1 1 1 1 = 1 1 1 1 1 0 0 = 1 = 1
1812 games in total: 816 wins, 655 losses, 341 draws (18.8%), score: 54.4%
Average opponent: −36.0 (2381), average distance to opponent: 85.3

Performance

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

Perf = C − 0.113 [±0.166] * 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