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
Fortress 1.62 WB  #117  (2216+15
−15
)Quote
Author: Alessandro Damiani (Italy/Switzerland) Released: 2000-05-22Link: RWBC
Sometimes it makes a draw by repetition instead of checkmating in two moves.
This engine is stable and runs without issues.
This is the only Fortress version we tested.
OpponentEloDiffResultsScoreLOSPerfPond
hit
Eval
diff
–   Leila 0.53h2490+17
−17
(+274)4.5 − 24.5
(+3−23=3)
15.5%
4.5 / 29
0.0%
−26
52.3%
2220
1.30
1161
0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 = = 0 0 0 0 0 0 = 1
–   The Crazy Bishop 00522460+15
−15
(+244)4.5 − 22.5
(+2−20=5)
16.7%
4.5 / 27
0.0%
−20
55.0%
2229
0.64
1226
0 0 0 0 0 1 0 = = 0 0 1 0 0 = 0 0 0 = 0 0 0 0 0 0 = 0
–   Der Bringer 1.92455+15
−15
(+239)4 − 22
(+3−21=2)
15.4%
4.0 / 26
0.0%
−72
54.6%
1860
0.98
1015
0 1 1 0 = 0 0 0 0 0 0 0 0 0 0 0 = 0 0 0 0 1 0 0 0 0
–   Phalanx XXII Reborn JA2452+15
−15
(+236)4.5 − 18.5
(+4−18=1)
19.6%
4.5 / 23
0.0%
−40
51.7%
1950
0.83
1008
0 1 1 0 0 0 0 0 1 0 1 = 0 0 0 0 0 0 0 0 0 0 0
–   Betsy 6.51 Nobook2450+15
−15
(+234)10 − 17
(+7−14=6)
37.0%
10.0 / 27
0.0%
+139
54.1%
2307
1.04
1247
0 = 1 = 1 = 0 0 1 1 0 = 1 1 0 0 1 0 0 = 0 = 0 0 0 0 0
–   Amateur 2.822446+15
−15
(+230)5.5 − 20.5
(+4−19=3)
21.2%
5.5 / 26
0.0%
−13
54.5%
1395
1.37
760
0 0 0 0 0 0 0 0 0 0 = = 0 1 0 0 1 = 1 0 0 0 0 0 1 0
–   Thor's Hammer 2.28 32-bit2417+15
−15
(+201)7.5 − 17.5
(+3−13=9)
30.0%
7.5 / 25
0.0%
+68
56.1%
1134
1.22
636
= = 0 1 = 0 = 0 = 0 = 0 0 0 0 0 1 1 0 0 = 0 = = 0
–   Chezzz 1.0.32409+15
−15
(+193)4 − 22
(+2−20=4)
15.4%
4.0 / 26
0.0%
−89
52.7%
2455
0.95
1293
0 1 0 0 = 0 0 = 0 0 0 0 0 0 0 = 0 0 0 = 0 0 0 1 0 0
–   Resp 0.19 64-bit JA Nobook2402+16
−16
(+186)6 − 16
(+4−14=4)
27.3%
6.0 / 22
0.0%
+12
51.7%
2099
0.85
1086
1 0 0 0 1 0 0 = 0 0 0 1 0 0 = 0 = = 1 0 0 0
–   Averno 0.812396+15
−15
(+180)4.5 − 22.5
(+2−20=5)
16.7%
4.5 / 27
0.0%
−84
50.2%
2197
0.90
1103
= 0 0 0 0 0 0 0 = 0 0 0 0 0 0 = = 0 0 0 0 0 0 = 0 1 1
–   Scidlet 3.61 64-bit JA2390+15
−15
(+174)7 − 15
(+6−14=2)
31.8%
7.0 / 22
0.0%
+24
57.3%
1777
0.87
1019
1 0 0 1 0 0 1 = 1 0 0 0 1 1 0 0 0 0 0 0 = 0
–   KnightX 1.922385+15
−15
(+169)8 − 18
(+6−16=4)
30.8%
8.0 / 26
0.0%
+18
52.6%
1972
0.98
1038
0 0 0 1 0 1 1 0 1 0 = = = 0 0 0 0 0 0 1 0 1 0 0 = 0
–   Eeyore 1.482384+15
−15
(+168)8 − 16
(+6−14=4)
33.3%
8.0 / 24
0.0%
+38
55.6%
1695
0.80
942
1 1 0 = 0 0 0 0 0 = 0 1 0 1 = 1 0 0 0 0 1 = 0 0
–   Ayito 0.2.9942371+16
−16
(+155)7 − 19
(+4−16=6)
26.9%
7.0 / 26
0.0%
−14
53.4%
2105
1.03
1125
0 1 0 1 0 1 0 = 0 0 = = 0 0 0 0 = 0 0 = 0 0 1 = 0 0
–   Matilde 2008 64-bit2368+15
−15
(+152)9.5 − 22.5
(+5−18=9)
29.7%
9.5 / 32
0.0%
+12
52.4%
2269
0.90
1188
0 0 = 0 0 0 0 = 0 = 0 1 0 = 0 1 0 = 0 0 1 = 1 0 0 0 1 = 0 0 = =
–   EXchess 5.01 beta 64-bit JA2355+14
−14
(+139)6 − 20
(+3−17=6)
23.1%
6.0 / 26
0.0%
−61
55.7%
1804
0.89
1004
= 0 0 0 0 0 = = 0 0 0 = = 0 1 0 0 0 1 0 0 0 0 0 1 =
–   Zeus 1.292346+16
−16
(+130)10.5 − 21.5
(+6−17=9)
32.8%
10.5 / 32
0.0%
+10
55.5%
1883
1.25
1045
= = 0 = = 0 1 1 0 0 0 = 0 0 0 1 0 0 0 0 0 1 0 = 0 0 = 0 = 1 1 =
–   Esc 1.162345+15
−15
(+129)5.5 − 20.5
(+4−19=3)
21.2%
5.5 / 26
0.0%
−112
54.8%
1979
1.01
1084
1 0 0 1 = 0 0 0 0 1 = 0 0 0 0 0 0 1 0 0 0 = 0 0 0 0
–   Popochin 3.22341+19
−19
(+125)10.5 − 21.5
(+7−18=7)
32.8%
10.5 / 32
0.0%
−1
54.9%
2417
0.75
1327
0 0 0 = = = = 0 0 0 1 1 1 1 1 0 = 0 0 0 0 0 0 0 = 0 1 0 = 1 0 0
–   ANT 2006-F2333+16
−16
(+117)12 − 19
(+9−16=6)
38.7%
12.0 / 31
0.0%
+34
52.5%
2278
0.90
1197
0 = 1 0 1 = 0 0 0 0 1 0 0 0 1 0 0 = 1 1 0 1 1 0 0 = = = 1 0 0
–   GNU Chess 5.07 64-bit JA2332+22
−22
(+116)10 − 17
(+9−16=2)
37.0%
10.0 / 27
0.0%
+8
54.0%
1787
1.00
965
0 0 0 0 1 = 0 1 1 1 1 1 0 0 0 0 0 0 0 0 = 0 0 1 1 0 1
–   Anechka 0.082320+16
−16
(+104)15 − 17
(+11−13=8)
46.9%
15.0 / 32
0.0%
+81
55.2%
2467
0.79
1363
1 = 1 = 0 0 0 0 0 = 1 1 1 1 = 0 0 0 0 0 = = 1 0 = 1 = 1 0 0 1 1
–   Dorky 3.482308+16
−16
(+92)13.5 − 9.5
(+12−8=3)
58.7%
13.5 / 23
0.0%
+161
55.4%
1954
1.30
1082
1 1 1 1 0 1 = 1 = 0 0 1 0 1 1 0 0 1 1 1 0 0 =
–   CyberPagno 2.1 32MB2295+16
−16
(+79)7.5 − 16.5
(+5−14=5)
31.3%
7.5 / 24
0.0%
−56
51.9%
2030
0.63
1054
0 0 = 1 0 0 0 1 1 = 0 0 0 1 = 0 1 0 0 = 0 = 0 0
–   Latista (Sinobyl) 1.52289+16
−16
(+73)12 − 17
(+8−13=8)
41.4%
12.0 / 29
0.0%
+10
52.6%
1835
0.88
965
= 0 1 = 0 1 0 1 0 1 1 0 0 = 1 1 = 0 0 0 0 = 1 = = 0 = 0 0
–   Madeleine 0.22285+15
−15
(+69)13.5 − 11.5
(+11−9=5)
54.0%
13.5 / 25
0.0%
+97
51.2%
1887
1.39
966
1 0 = 1 0 0 = 1 1 1 0 1 1 1 = 1 = 1 1 = 0 0 0 0 0
–   Chispa 4.0.32273+14
−14
(+57)11.5 − 12.5
(+2−3=19)
47.9%
11.5 / 24
0.0%
+44
58.7%
446
0.81
262
= = = = = = = 0 = 1 = = = 0 = = = = = 0 = 1 = =
–   Uralochka 1.1b2272+18
−18
(+56)11.5 − 20.5
(+10−19=3)
35.9%
11.5 / 32
0.0%
−59
54.4%
2706
1.22
1471
1 0 0 1 0 1 0 0 0 1 1 0 1 1 1 0 0 0 0 = 0 = 0 0 0 0 0 0 0 = 1 1
–   Atlas 2.202271+17
−17
(+55)10 − 13
(+8−11=4)
43.5%
10.0 / 23
0.0%
+6
  
0 0 0 0 1 1 1 0 1 1 = = 0 0 = = 1 1 0 0 0 0 1
–   Genesis 2.02247+16
−16
(+31)13 − 14
(+11−12=4)
48.1%
13.0 / 27
0.2%
+17
57.9%
2267
0.84
1312
0 1 1 1 0 = 1 0 1 1 1 0 0 0 0 0 1 0 1 1 1 0 0 = = 0 =
–   Lime 662241+18
−18
(+25)15 − 17
(+11−13=8)
46.9%
15.0 / 32
1.2%
+4
50.7%
2251
0.99
1141
1 0 1 = = 0 = 1 = 1 0 1 = 1 0 0 0 0 0 1 0 = 0 1 = 0 1 = 0 1 0 1
–   InmiChess 3.06N2241+15
−15
(+25)7.5 − 14.5
(+4−11=7)
34.1%
7.5 / 22
0.6%
−85
51.2%
1237
1.22
633
1 = 0 = 0 0 1 = 0 0 = 0 0 0 0 = 1 0 0 = 1 =
–   Nesik 0.7.0 alpha2237+16
−16
(+21)15.5 − 11.5
(+13−9=5)
57.4%
15.5 / 27
2.2%
+76
53.3%
2137
0.92
1139
1 1 0 1 1 0 = 0 1 = = 1 1 0 0 0 1 1 0 = 1 1 0 0 1 1 =
–   NagaSkaki 5.122232+18
−18
(+16)16.5 − 15.5
(+11−10=11)
51.6%
16.5 / 32
7.4%
+28
54.8%
2207
1.03
1209
= 1 1 = 1 = 0 0 1 1 1 = 0 = 0 1 1 1 0 1 1 = 0 = 0 0 0 0 = = = =
–   Sunsetter C10.3 64-bit JA2232+16
−16
(+16)12.5 − 12.5
(+10−10=5)
50.0%
12.5 / 25
6.3%
+18
54.9%
1797
0.78
987
0 = 1 0 1 0 1 = 1 1 = = 1 = 1 1 1 1 0 0 0 0 0 0 0
–   Alarm 0.93.12226+16
−16
(+10)13 − 19
(+9−15=8)
40.6%
13.0 / 32
16.7%
−55
53.1%
2432
1.63
1291
= 1 0 0 0 1 = 1 1 0 = = 0 1 0 0 0 0 0 1 1 = 0 0 = 0 = = 1 0 0 1
–   WJChess 1.642215+16
−16
(−1)7.5 − 20.5
(+5−18=5)
26.8%
7.5 / 28
52.5%
−180
55.6%
2390
1.15
1328
= 0 0 0 1 = 1 0 0 0 0 0 = 0 0 1 0 0 0 0 0 = 0 1 0 0 = 1
–   Gk 0.90 64-bit JA2194+16
−16
(−22)11 − 13
(+8−10=6)
45.8%
11.0 / 24
97.6%
−48
51.9%
1818
0.90
944
0 = 1 0 0 0 0 1 0 1 = 1 0 1 1 0 1 = 0 = = = 0 1
–   Alf 1.09 JA2193+17
−17
(−23)15 − 17
(+9−11=12)
46.9%
15.0 / 32
97.8%
−43
55.2%
1830
0.83
1010
0 = 0 0 0 = = = = 1 0 1 1 = 1 1 0 0 1 0 = = 1 = 0 0 = 1 = = 1 0
–   Clarabit 1.00 64-bit2193+18
−18
(−23)22.5 − 9.5
(+19−6=7)
70.3%
22.5 / 32
97.6%
+128
53.0%
2194
0.91
1162
1 = 1 = 1 1 1 0 1 1 1 1 = = 0 1 1 = 1 1 1 0 1 = 0 1 1 0 0 = 1 1
–   Ghost 0.142189+17
−17
(−27)15.5 − 16.5
(+14−15=3)
48.4%
15.5 / 32
99.2%
−41
53.4%
2723
1.41
1454
= 0 0 0 1 1 0 1 0 1 0 1 0 0 1 1 0 = 1 0 0 0 0 1 1 = 0 1 1 0 1 1
–   Wing 2.0a2179+16
−16
(−37)13 − 14
(+11−12=4)
48.1%
13.0 / 27
100.0%
−49
54.1%
1988
1.17
1076
0 = 0 0 1 1 0 1 1 1 1 = 0 1 0 0 1 0 1 0 0 1 1 = 0 = 0
–   Uragano 3D 0.872174+16
−16
(−42)19.5 − 12.5
(+15−8=9)
60.9%
19.5 / 32
100.0%
+35
52.7%
1899
1.01
1000
= 1 0 0 0 0 1 0 = 1 = 1 0 1 1 0 1 = = 1 0 1 1 1 = 1 = 1 1 1 = =
–   Parrot 0707222161+17
−17
(−55)18 − 14
(+15−11=6)
56.3%
18.0 / 32
100.0%
−8
51.1%
2027
1.40
1035
0 = 1 = = 1 0 0 1 0 1 1 1 = = 1 0 0 0 1 1 0 1 0 1 1 1 1 = 0 0 1
–   Matheus 2.32144+15
−15
(−72)18.5 − 7.5
(+15−4=7)
71.2%
18.5 / 26
100.0%
+75
54.3%
1632
0.94
886
= 0 = 1 1 = 0 = 1 = 1 1 1 0 1 1 1 0 = 1 1 1 1 = 1 1
–   Bodo 0.2b2137+15
−15
(−79)17.5 − 10.5
(+13−6=9)
62.5%
17.5 / 28
100.0%
+7
52.0%
1391
1.06
723
1 1 1 1 = 1 = 1 = = = 1 1 0 1 0 1 0 = = 1 1 0 0 0 = = 1
–   Monarch 1.72131+16
−16
(−85)19 − 13
(+16−10=6)
59.4%
19.0 / 32
100.0%
−14
50.6%
2094
1.74
1060
1 0 0 0 1 = 0 1 1 1 0 = 1 0 0 1 = 1 1 1 0 1 = 1 1 0 = 1 1 0 = 1
–   Bestia 0.902122+15
−15
(−94)17 − 8
(+14−5=6)
68.0%
17.0 / 25
100.0%
+33
56.0%
1500
0.93
840
0 1 = 0 1 = 0 1 1 1 = 1 = 1 1 = 1 1 1 0 1 = 1 0 1
–   Ax 0.82119+15
−15
(−97)19 − 6
(+17−4=4)
76.0%
19.0 / 25
100.0%
+107
  
1 1 = 1 = 0 0 1 1 = 1 1 1 0 1 1 1 = 1 1 1 0 1 1 1
–   Gerbil 02 64-bit JA2118+18
−18
(−98)23.5 − 8.5
(+19−4=9)
73.4%
23.5 / 32
100.0%
+66
51.3%
2325
0.95
1192
1 = 1 0 1 1 1 0 = 1 = = = 1 1 1 1 0 1 = 1 1 1 = 0 = 1 1 1 1 = 1
–   BigLion 2.23x2117+17
−17
(−99)23.5 − 8.5
(+21−6=5)
73.4%
23.5 / 32
100.0%
+85
53.7%
2414
0.98
1297
1 1 1 = 1 1 1 1 0 1 1 = 1 = 1 1 1 0 1 0 1 0 0 1 1 0 1 1 1 = 1 =
–   RDChess 3.232117+16
−16
(−99)18 − 14
(+16−12=4)
56.3%
18.0 / 32
100.0%
−50
54.4%
2253
1.03
1225
0 0 1 1 0 0 1 1 1 1 = 0 1 1 0 1 1 0 0 1 1 1 1 = = 0 0 0 0 1 = 1
–   DelphiMax 2.92102+16
−16
(−114)12 − 11
(+9−8=6)
52.2%
12.0 / 23
100.0%
−95
53.9%
1441
0.92
776
0 = = 0 1 1 0 0 1 0 = 1 0 0 1 1 = 1 0 1 = = 1
–   Armageddon 2.3082098+17
−17
(−118)20.5 − 11.5
(+13−4=15)
64.1%
20.5 / 32
100.0%
−31
53.8%
1679
1.07
904
= 0 = = 1 = 1 1 = = = = 1 1 1 = 0 1 = 1 1 1 = 0 1 1 = = = 0 = 1
–   Requiem 0.532084+15
−15
(−132)18 − 14
(+9−5=18)
56.3%
18.0 / 32
100.0%
−95
52.5%
975
1.01
512
= = = = = = 1 = = = 0 0 1 = 1 0 1 1 = 1 1 = = = = = 0 0 1 1 = =
–   Small Potato 0.6.12082+16
−16
(−134)18.5 − 13.5
(+13−8=11)
57.8%
18.5 / 32
100.0%
−82
53.3%
1806
0.95
963
= 1 1 = = = 1 0 0 0 1 1 = 1 0 1 = = 0 0 = 0 = 1 1 1 0 1 1 = 1 =
–   Elephant 1.062075+16
−16
(−141)15.5 − 10.5
(+14−9=3)
59.6%
15.5 / 26
100.0%
−63
51.3%
1723
0.90
884
1 0 = 1 0 1 0 = 1 0 1 1 1 1 1 0 0 0 1 = 1 0 1 0 1 1
–   Cilian 4.142069+16
−16
(−147)24.5 − 7.5
(+19−2=11)
76.6%
24.5 / 32
100.0%
+32
  
1 1 1 1 = = = 1 1 = 1 1 1 0 1 = = = = 1 = 1 = 1 1 0 1 1 1 1 1 =
–   JanWillem 1.132062+16
−16
(−154)16 − 4
(+14−2=4)
80.0%
16.0 / 20
100.0%
+81
52.7%
1493
1.07
787
1 1 1 1 1 1 1 1 1 1 = 0 = = 1 0 1 1 = 1
–   Marvin 1.3.02054+16
−16
(−162)22 − 4
(+21−3=2)
84.6%
22.0 / 26
100.0%
+147
54.2%
1935
0.82
1048
1 0 1 1 1 1 1 1 1 1 1 1 1 0 1 1 = 1 1 = 1 1 1 1 1 0
–   Faile 1.4.42042+15
−15
(−174)20 − 7
(+17−4=6)
74.1%
20.0 / 27
100.0%
+3
55.7%
1746
1.19
972
1 1 0 1 1 1 1 1 1 1 1 1 = 0 1 0 = 0 1 = 1 = = 1 = 1 1
–   Sharper 0.172022+16
−16
(−194)16.5 − 7.5
(+14−5=5)
68.8%
16.5 / 24
100.0%
−59
49.6%
1735
1.26
860
1 1 = = 1 1 0 0 1 1 = = 0 1 1 1 0 = 1 1 1 0 1 1
–   BibiChess 0.52007+16
−16
(−209)23 − 9
(+17−3=12)
71.9%
23.0 / 32
100.0%
−70
  
1 = 1 = 0 1 1 = 0 1 1 = 1 = 1 1 = 1 1 = 0 1 1 = 1 = 1 1 = = 1 =

Performance

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

Perf = C + 0.002 [±0.132] * 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