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
EXchess 5.01 beta 64-bit JA WB#97  (2355+14
−14
)Quote
Author: Daniel C. Homan (USA) Released: 2006-01-29Links: Homepage, Jim Ablett's compile
"JA" compile is made by Jim Ablett.
Issues with this engine: EXchess does not count the opening moves when a GUI opening book is used. This leads to incorrect time allocation and time trouble. (Bug details posted at Winboard forum). Still sometimes it loses on time.
This is the only EXchess version we tested.
OpponentEloDiffResultsScoreLOSPerfPond
hit
Eval
diff
–   Quark 2.352536+16
−16
(+181)4.5 − 15.5
(+2−13=5)
22.5%
4.5 / 20
0.0%
−26
55.1%
1425
0.87
785
0 0 = 0 = 0 0 0 0 = = 0 0 0 1 = 0 1 0 0
–   Dragon 4.62524+16
−16
(+169)6.5 − 17.5
(+2−13=9)
27.1%
6.5 / 24
0.0%
+22
59.7%
1144
0.61
683
0 0 0 1 = = 0 0 0 0 0 0 = 0 = = = 1 = 0 = 0 = 0
–   Snitch 1.6.2 32-bit2521+15
−15
(+166)6.5 − 20.5
(+3−17=7)
24.1%
6.5 / 27
0.0%
−21
52.6%
1629
0.81
857
= 0 = 0 1 0 1 0 0 0 0 0 0 0 = 0 0 = = 0 0 0 0 0 = 1 =
–   Nejmet 3.072521+16
−16
(+166)9 − 17
(+5−13=8)
34.6%
9.0 / 26
0.0%
+63
56.1%
1778
0.75
997
1 1 0 = = 0 1 = = = 0 0 0 0 1 1 0 = 0 0 = 0 = 0 0 0
–   Amy 0.8.7b DC2500+17
−17
(+145)8.5 − 15.5
(+6−13=5)
35.4%
8.5 / 24
0.0%
+40
55.2%
1950
0.82
1076
1 0 0 0 1 0 0 0 = 1 = 0 = 0 0 1 1 0 1 = 0 = 0 0
–   KnightDreamer 3.32499+16
−16
(+144)6 − 21
(+3−18=6)
22.2%
6.0 / 27
0.0%
−62
57.0%
1997
0.61
1138
= 0 0 = 0 0 0 1 = 0 1 0 0 0 0 0 1 0 0 = 0 0 0 0 = 0 =
–   Francesca MAD 0.13 Nobook2493+19
−19
(+138)4.5 − 15.5
(+3−14=3)
22.5%
4.5 / 20
0.0%
−83
59.0%
1673
0.80
987
= = = 0 1 0 0 1 0 0 0 1 0 0 0 0 0 0 0 0
–   Leila 0.53h2490+17
−17
(+135)6.5 − 18.5
(+4−16=5)
26.0%
6.5 / 25
0.0%
−43
57.2%
1716
1.02
982
0 0 0 0 0 1 0 0 0 0 = 0 0 = 1 1 0 1 = 0 0 = = 0 0
–   Djinn 0.925x2479+16
−16
(+124)10.5 − 16.5
(+7−13=7)
38.9%
10.5 / 27
0.0%
+43
54.4%
2104
0.72
1145
1 0 = 1 1 = = 0 0 1 0 1 = 0 0 = 0 0 1 0 = 0 1 0 0 = 0
–   Comet B682478+14
−14
(+123)11 − 17
(+8−14=6)
39.3%
11.0 / 28
0.0%
+45
57.7%
2071
0.89
1195
0 1 0 0 1 0 = 1 1 0 0 = 0 0 1 0 0 0 = 0 = 0 1 1 1 = = 0
–   Sjeng 12.132475+14
−14
(+120)12 − 14
(+9−11=6)
46.2%
12.0 / 26
0.0%
+96
53.8%
1873
0.93
1007
0 1 0 1 = 1 1 1 1 0 0 1 1 0 0 = 0 = 0 = 0 0 1 = = 0
–   Muse 0.899b2474+16
−16
(+119)8.5 − 21.5
(+6−19=5)
28.3%
8.5 / 30
0.0%
−48
54.7%
2197
0.73
1201
0 0 1 0 0 = 0 0 0 0 1 1 = 0 0 0 0 0 = 0 1 0 = = 1 0 0 0 0 1
–   Patzer 3.802460+16
−16
(+105)9.5 − 22.5
(+7−20=5)
29.7%
9.5 / 32
0.0%
−52
54.5%
2127
1.36
1159
0 0 0 1 = 1 0 0 0 0 1 0 0 0 0 0 0 0 = 0 1 1 1 = 1 0 = 0 0 0 0 =
–   The Crazy Bishop 00522460+15
−15
(+105)9.5 − 18.5
(+4−13=11)
33.9%
9.5 / 28
0.0%
0
58.7%
1538
0.56
903
= = 0 0 1 1 0 0 1 = = 0 = 0 0 0 0 0 0 = = = 0 = 0 = 1 =
–   Gosu 0.162455+16
−16
(+100)12 − 20
(+7−15=10)
37.5%
12.0 / 32
0.0%
+16
47.0%
2595
1.06
1220
0 = 0 0 0 0 = 1 0 0 0 0 = 1 = 1 = 0 1 = 0 0 = = 1 0 = = 1 1 0 0
–   Der Bringer 1.92455+15
−15
(+100)8.5 − 16.5
(+6−14=5)
34.0%
8.5 / 25
0.0%
−17
58.9%
1920
0.50
1131
0 1 0 1 0 0 1 = = = = 0 0 0 0 0 0 0 0 1 = 1 1 0 0
–   Homer 2.012452+17
−17
(+97)11.5 − 20.5
(+7−16=9)
35.9%
11.5 / 32
0.0%
−2
50.6%
1908
0.93
966
0 1 0 0 0 = 0 = 1 = 1 0 1 = 0 1 0 0 0 = 0 1 = = = 0 0 1 0 0 0 =
–   Phalanx XXII Reborn JA2452+15
−15
(+97)8 − 20
(+4−16=8)
28.6%
8.0 / 28
0.0%
−52
56.7%
1995
0.65
1132
0 = = 0 = 0 = 1 0 0 1 0 0 0 = 0 0 = 0 = 1 = 1 0 0 0 0 0
–   Betsy 6.51 Nobook2450+15
−15
(+95)9.5 − 20.5
(+6−17=7)
31.7%
9.5 / 30
0.0%
−38
59.8%
2502
0.62
1496
0 0 = 1 0 1 0 = 0 0 0 0 0 = 0 = 0 0 0 1 0 = 0 = 1 0 0 = 1 1
–   GNU Chess 5.07.9b 64-bit JA2448+16
−16
(+93)8 − 24
(+4−20=8)
25.0%
8.0 / 32
0.0%
−87
50.1%
2277
0.95
1141
0 = 0 0 0 0 0 0 0 1 0 0 0 0 0 = 0 0 = = 1 0 = 0 0 0 0 = = 1 = 1
–   Amateur 2.822446+15
−15
(+91)9 − 21
(+6−18=6)
30.0%
9.0 / 30
0.0%
−57
58.1%
2049
1.01
1190
= 0 0 = 0 0 0 0 0 0 0 0 = 0 0 0 0 1 = 1 1 = 0 1 0 = 0 1 0 1
–   Tytan 9.32 64-bit2429+17
−17
(+74)10 − 22
(+8−20=4)
31.3%
10.0 / 32
0.0%
−72
  
0 0 0 0 0 0 = 0 0 1 0 1 0 0 0 1 0 0 = 0 0 0 = 1 0 1 1 0 = 1 0 1
–   Sage 3.532424+19
−19
(+69)14 − 18
(+10−14=8)
43.8%
14.0 / 32
0.0%
+23
52.0%
2295
1.00
1193
= 0 1 0 1 = 0 0 = 1 0 1 0 1 0 1 = = = 0 0 0 0 = 1 0 = 1 1 1 0 0
–   Sorgenkind 0.42421+18
−18
(+66)11.5 − 20.5
(+9−18=5)
35.9%
11.5 / 32
0.0%
−41
51.4%
2364
0.93
1216
0 0 = 1 0 0 0 0 0 0 1 0 0 0 = 0 0 1 0 = 1 = = 1 1 0 1 0 1 0 0 1
–   Horizon 4.42419+18
−18
(+64)17 − 15
(+11−9=12)
53.1%
17.0 / 32
0.0%
+83
54.5%
1808
1.53
986
0 1 = 0 0 0 = 1 = 1 1 = 1 0 0 0 0 = 1 1 0 = = 1 = = 1 = 1 = 1 =
–   Thor's Hammer 2.28 32-bit2417+15
−15
(+62)8 − 19
(+4−15=8)
29.6%
8.0 / 27
0.0%
−81
57.2%
1759
0.64
1006
0 0 = 0 0 = 0 1 1 = 0 = 0 0 1 = 1 = 0 0 0 = = 0 0 0 0
–   Arion 1.72415+16
−16
(+60)10.5 − 16.5
(+6−12=9)
38.9%
10.5 / 27
0.0%
−16
60.0%
1734
0.67
1041
= = 0 0 0 1 1 = 0 0 = 0 = 1 = = 0 1 1 = = 0 0 1 0 0 0
–   AICE 0.99.22411+16
−16
(+56)17.5 − 14.5
(+13−10=9)
54.7%
17.5 / 32
0.0%
+85
53.0%
2045
0.86
1083
0 = 1 1 0 = = 0 1 = 1 1 1 = 0 1 1 0 0 0 1 = 0 = 0 = 0 1 = 1 1 1
–   Chezzz 1.0.32409+15
−15
(+54)9 − 18
(+6−15=6)
33.3%
9.0 / 27
0.0%
−70
53.3%
2235
0.76
1192
= 1 0 0 0 0 0 0 0 1 = 0 = = = 1 0 0 1 0 1 0 1 0 = 0 0
–   Asterisk 0.62402+17
−17
(+47)9 − 23
(+6−20=6)
28.1%
9.0 / 32
0.0%
−117
54.5%
2549
0.61
1388
= 1 0 0 0 0 0 0 0 0 0 1 0 0 = 0 1 = 0 1 0 0 0 0 0 1 = 1 0 = 0 =
–   Resp 0.19 64-bit JA Nobook2402+16
−16
(+47)6.5 − 17.5
(+3−14=7)
27.1%
6.5 / 24
0.0%
−109
60.9%
1889
0.48
1150
1 0 = 0 0 0 0 0 0 = 0 0 = 0 0 = = 1 = 0 0 0 = 1
–   Averno 0.812396+15
−15
(+41)11.5 − 15.5
(+8−12=7)
42.6%
11.5 / 27
0.0%
−12
55.5%
1979
0.71
1099
= 1 0 1 1 0 1 = 1 0 1 = 0 = 1 0 0 0 0 0 0 0 = = 1 = 0
–   Scidlet 3.61 64-bit JA2390+15
−15
(+35)15.5 − 12.5
(+13−10=5)
55.4%
15.5 / 28
0.0%
+77
60.1%
2243
0.72
1347
0 1 0 0 1 1 = 1 = 0 1 0 0 1 = = 1 0 1 1 0 = 1 1 0 1 1 0
–   KnightX 1.922385+15
−15
(+30)17 − 9
(+14−6=6)
65.4%
17.0 / 26
0.2%
+144
56.5%
1778
0.83
1005
= 1 1 1 1 = 1 1 1 1 0 1 = 0 1 0 1 0 1 0 = 1 = = 0 1
–   Eeyore 1.482384+15
−15
(+29)14 − 11
(+9−6=10)
56.0%
14.0 / 25
0.2%
+67
58.1%
1370
0.88
796
0 = 1 0 = = 0 = = = 1 1 1 = 1 1 0 = = 0 1 = 1 1 0
–   Ayito 0.2.9942371+16
−16
(+16)15 − 12
(+12−9=6)
55.6%
15.0 / 27
6.4%
+59
52.7%
2145
0.85
1131
1 0 0 1 1 0 = = 0 1 = 0 1 0 1 1 1 1 = 1 1 0 0 = 0 = 1
–   Matilde 2008 64-bit2368+15
−15
(+13)14.5 − 17.5
(+10−13=9)
45.3%
14.5 / 32
9.5%
−19
56.4%
1843
0.64
1040
= 1 1 = 1 1 0 = 0 = = = 0 1 0 0 1 0 0 0 0 = = 0 = 1 0 0 1 0 1 1
–   Natwarlal 0.142359+17
−17
(+4)15.5 − 16.5
(+11−12=9)
48.4%
15.5 / 32
36.9%
−5
58.6%
2009
0.75
1178
= 0 = 0 1 0 0 1 0 0 1 0 = = 0 1 0 = = 1 = 1 0 0 1 1 1 1 = = 0 1
–   Zeus 1.292346+16
−16
(−9)18 − 14
(+14−10=8)
56.3%
18.0 / 32
80.4%
+35
54.2%
2220
0.82
1204
1 0 0 1 1 1 0 0 0 1 1 1 = 1 0 = 1 1 = 0 = = 1 1 = = 1 = 0 0 1 0
–   Esc 1.162345+15
−15
(−10)14 − 10
(+10−6=8)
58.3%
14.0 / 24
84.8%
+50
55.1%
1558
0.71
859
= 1 0 1 1 1 = = 0 0 = = 1 1 = 0 1 0 1 1 = 1 = 0
–   Popochin 3.22341+19
−19
(−14)14 − 18
(+8−12=12)
43.8%
14.0 / 32
88.6%
−56
55.7%
2159
0.54
1203
= 0 = 0 = 0 1 0 1 = = = = 0 = 1 = 1 1 0 = 0 1 0 = 1 0 = 0 1 0 0
–   ANT 2006-F2333+16
−16
(−22)8.5 − 16.5
(+5−13=7)
34.0%
8.5 / 25
97.9%
−130
53.9%
1695
0.71
914
0 0 0 1 0 0 0 0 = 0 0 0 = = 1 0 = = 1 1 = = 0 1 0
–   GNU Chess 5.07 64-bit JA2332+22
−22
(−23)17.5 − 9.5
(+15−7=5)
64.8%
17.5 / 27
96.1%
+85
52.5%
1677
0.66
881
1 0 1 = 1 0 0 = 1 1 0 0 1 1 1 1 0 0 = 1 1 1 = 1 1 = 1
–   Anechka 0.082320+16
−16
(−35)16.5 − 15.5
(+10−9=13)
51.6%
16.5 / 32
99.9%
−25
54.0%
2097
0.75
1132
1 1 1 0 1 = = 0 0 = = 0 0 = = = = 0 1 = 1 0 = 1 1 = = = 0 1 1 0
–   Dorky 3.482308+16
−16
(−47)14 − 14
(+8−8=12)
50.0%
14.0 / 28
100.0%
−50
57.2%
1566
1.24
895
1 = 1 0 = 1 = = 1 0 = 0 = = 0 0 1 0 0 = = 0 = 1 = 1 1 =
–   CyberPagno 2.1 32MB2295+16
−16
(−60)15 − 9
(+13−7=4)
62.5%
15.0 / 24
100.0%
+36
56.0%
1729
0.77
969
= 0 1 1 0 1 = 1 0 0 1 1 0 1 1 1 1 1 = 1 = 0 1 0
–   Latista (Sinobyl) 1.52289+16
−16
(−66)10.5 − 15.5
(+5−10=11)
40.4%
10.5 / 26
100.0%
−122
59.2%
1347
0.64
798
0 = 0 0 = 1 = = = 0 1 = 0 = = 0 0 = = 1 1 1 = 0 0 0
–   Madeleine 0.22285+15
−15
(−70)15.5 − 11.5
(+13−9=5)
57.4%
15.5 / 27
100.0%
−13
52.5%
2013
0.88
1057
1 0 1 1 = 1 1 0 1 1 1 0 0 1 1 = 0 1 = 0 = 0 0 1 0 1 =
–   Chispa 4.0.32273+14
−14
(−82)21.5 − 7.5
(+16−2=11)
74.1%
21.5 / 29
100.0%
+74
53.8%
1661
1.06
894
1 1 1 = 1 = = = 0 0 1 = = = = 1 1 1 1 1 1 1 = 1 = = 1 1 1
–   Uralochka 1.1b2272+18
−18
(−83)16 − 16
(+13−13=6)
50.0%
16.0 / 32
100.0%
−81
51.6%
2535
1.00
1308
0 1 1 1 1 1 = 1 0 0 1 0 1 0 = 0 = 1 0 1 1 0 0 = 1 0 1 = = 0 0 0
–   Atlas 2.202271+17
−17
(−84)18.5 − 9.5
(+15−6=7)
66.1%
18.5 / 28
100.0%
+28
  
= 1 0 = 1 = 0 1 1 = 1 1 1 0 0 1 0 = 1 = 1 1 = 1 1 1 1 0
–   Genesis 2.02247+16
−16
(−108)19 − 7
(+16−4=6)
73.1%
19.0 / 26
100.0%
+59
56.8%
1715
0.73
974
1 0 = 1 1 0 1 1 1 1 1 1 0 = 1 1 1 0 1 1 = = 1 1 = =
–   InmiChess 3.06N2241+15
−15
(−114)14.5 − 8.5
(+11−5=7)
63.0%
14.5 / 23
100.0%
−28
54.9%
1320
0.81
725
1 1 1 0 0 = 1 1 = 0 1 1 = 1 1 = 1 = 1 0 = 0 =
–   Lime 662241+18
−18
(−114)22 − 10
(+20−8=4)
68.8%
22.0 / 32
100.0%
+34
52.9%
2762
0.95
1461
1 1 1 0 0 1 0 1 1 1 0 1 1 0 1 1 1 0 1 = 1 1 0 1 0 1 1 1 = = 1 =
–   Nesik 0.7.0 alpha2237+16
−16
(−118)14.5 − 6.5
(+13−5=3)
69.0%
14.5 / 21
100.0%
+33
55.6%
1560
0.67
868
1 1 = 0 1 1 1 1 1 1 1 0 1 0 = 1 1 0 = 1 0
–   Sunsetter C10.3 64-bit JA2232+16
−16
(−123)17 − 9
(+14−6=6)
65.4%
17.0 / 26
100.0%
−10
56.4%
1754
0.88
989
0 0 1 1 0 0 1 1 = 0 = 1 1 1 1 1 = 1 = 0 1 1 = = 1 1
–   NagaSkaki 5.122232+18
−18
(−123)23.5 − 8.5
(+20−5=7)
73.4%
23.5 / 32
100.0%
+52
57.0%
2508
0.78
1429
1 0 1 0 1 1 1 1 1 0 = 1 1 1 1 = 1 1 = 1 0 1 1 1 = 1 = 1 1 = = 0
–   Alarm 0.93.12226+16
−16
(−129)22.5 − 9.5
(+21−8=3)
70.3%
22.5 / 32
100.0%
+37
56.9%
2550
0.84
1450
0 = 1 1 1 = 0 0 1 1 1 1 1 0 1 1 1 1 1 1 1 1 1 1 0 0 0 1 0 1 = 1
–   Fortress 1.622216+15
−15
(−139)20 − 6
(+17−3=6)
76.9%
20.0 / 26
100.0%
+61
55.7%
1804
0.89
1004
= 1 1 1 1 1 = = 1 1 1 = = 1 0 1 1 1 0 1 1 1 1 1 0 =
–   WJChess 1.642215+16
−16
(−140)20 − 6
(+17−3=6)
76.9%
20.0 / 26
100.0%
+59
59.2%
1631
0.66
966
1 = 0 1 1 = 1 = = = 1 1 1 0 1 1 1 1 0 1 1 1 1 = 1 1
–   Gk 0.90 64-bit JA2194+16
−16
(−161)19.5 − 7.5
(+17−5=5)
72.2%
19.5 / 27
100.0%
+5
56.1%
1954
1.07
1097
1 = 1 1 1 1 1 1 1 = 1 = 1 1 0 = 1 0 0 0 1 1 1 1 = 0 1
–   Wing 2.0a2179+16
−16
(−176)19 − 7
(+15−3=8)
73.1%
19.0 / 26
100.0%
−16
58.0%
1547
0.73
897
1 = = 1 1 1 = 1 1 = 1 1 1 1 0 1 1 = = 1 1 0 = = 1 0
–   Matheus 2.32144+15
−15
(−211)17 − 4
(+15−2=4)
81.0%
17.0 / 21
100.0%
+32
57.8%
1520
1.03
878
1 1 1 1 1 1 1 1 1 0 1 = = 1 0 1 1 1 = = 1
–   Bodo 0.2b2137+15
−15
(−218)21 − 5
(+18−2=6)
80.8%
21.0 / 26
100.0%
+18
56.3%
1321
0.64
744
= 1 1 1 = 0 0 1 1 = 1 = 1 1 1 = 1 = 1 1 1 1 1 1 1 1
–   Bestia 0.902122+15
−15
(−233)22 − 3
(+20−1=4)
88.0%
22.0 / 25
100.0%
+85
54.3%
2052
0.90
1115
1 1 1 1 = = 1 1 1 1 1 = 1 1 1 = 1 1 1 0 1 1 1 1 1
–   Ax 0.82119+15
−15
(−236)20.5 − 5.5
(+18−3=5)
78.8%
20.5 / 26
100.0%
−13
  
0 1 1 0 1 = 0 1 1 1 1 1 1 1 = 1 1 1 1 = 1 = 1 = 1 1
–   DelphiMax 2.92102+16
−16
(−253)21.5 − 4.5
(+20−3=3)
82.7%
21.5 / 26
100.0%
+22
55.5%
1921
0.82
1067
1 1 1 1 0 1 1 0 1 1 1 1 1 = 1 1 = 1 1 1 1 1 1 = 0 1
–   Faile 1.4.42042+15
−15
(−313)27.5 − 1.5
(+27−1=1)
94.8%
27.5 / 29
100.0%
+195
57.3%
2095
0.93
1200
1 1 1 1 1 0 1 1 1 1 1 1 1 1 1 1 1 1 1 = 1 1 1 1 1 1 1 1 1

Performance

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

Perf = C − 0.156 [±0.122] * 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