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
GNU Chess 5.07 64-bit JA WB   (2332+22
−22
)Quote
Authors: Chua Kong-Sian (Singapore), Stuart Cracraft (USA) Released: 2003-08-22Links: Homepage, GnuWin32, Bugfixes by Michel Van den Bergh, Jim Ablett's compiles, Winboard forum thread
"JA" compile is made by Jim Ablett.
Issues with this engine: GNU Chess does not count the opening moves when a GUI opening book is used. This leads to incorrect time allocation and time trouble. Sometimes it crashes and sometimes it loses games on time. (See discussion about this bug, also about the same bug in other engines).
This is one of the 2 GNU Chess versions we tested: Compare them!
OpponentEloDiffResultsScoreLOSPerfPond
hit
Eval
diff
–   Amy 0.8.7b DC2500+17
−17
(+168)8.5 − 15.5
(+8−15=1)
35.4%
8.5 / 24
0.0%
+41
54.3%
1725
0.75
936
1 0 0 0 0 0 0 0 0 0 1 0 1 1 = 0 1 0 0 0 1 1 1 0
–   Leila 0.53h2490+17
−17
(+158)8.5 − 23.5
(+7−22=3)
26.6%
8.5 / 32
0.0%
−37
48.8%
2142
0.90
1046
= 1 1 0 = 0 0 0 0 = 1 0 0 0 0 0 1 1 0 0 0 0 0 0 1 0 0 0 1 0 0 0
–   Djinn 0.925x2479+16
−16
(+147)7.5 − 19.5
(+6−18=3)
27.8%
7.5 / 27
0.0%
−35
51.6%
1712
0.69
884
0 0 0 0 0 0 0 0 1 0 1 0 0 0 0 = 0 1 0 = 0 1 = 1 0 0 1
–   Comet B682478+14
−14
(+146)12 − 15
(+7−10=10)
44.4%
12.0 / 27
0.0%
+110
53.9%
1280
0.68
690
= = = 0 1 = = = 0 0 1 = 0 0 0 1 0 1 1 0 = = 0 1 = 0 1
–   Sjeng 12.132475+14
−14
(+143)5.5 − 20.5
(+5−20=1)
21.2%
5.5 / 26
0.0%
−118
56.2%
1706
0.69
959
1 0 1 0 1 0 0 1 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 = 0 0
–   Muse 0.899b2474+16
−16
(+142)11.5 − 16.5
(+10−15=3)
41.1%
11.5 / 28
0.0%
+72
51.5%
1725
0.64
888
0 = 0 1 0 0 = 0 1 0 1 1 0 0 0 1 1 0 1 1 0 1 0 1 0 = 0 0
–   The Crazy Bishop 00522460+15
−15
(+128)10.5 − 14.5
(+9−13=3)
42.0%
10.5 / 25
0.0%
+61
51.8%
1551
0.78
803
1 0 0 1 1 = 0 1 0 0 0 0 = 0 = 0 1 0 1 0 1 1 0 0 1
–   Der Bringer 1.92455+15
−15
(+123)10.5 − 16.5
(+9−15=3)
38.9%
10.5 / 27
0.0%
+33
54.5%
1706
0.63
929
0 1 0 0 0 1 1 0 = 1 0 1 0 1 1 0 0 = 0 0 0 1 1 = 0 0 0
–   Phalanx XXII Reborn JA2452+15
−15
(+120)6.5 − 21.5
(+5−20=3)
23.2%
6.5 / 28
0.0%
−101
51.8%
1713
0.64
887
0 0 1 0 0 = 0 0 0 0 0 1 1 0 1 0 0 0 0 1 0 0 0 0 = 0 0 =
–   Amateur 2.822446+15
−15
(+114)11 − 13
(+9−11=4)
45.8%
11.0 / 24
0.0%
+82
52.7%
1354
1.02
714
0 = 0 1 = 1 1 1 = 0 = 0 0 1 1 1 0 0 0 1 1 0 0 0
–   Thor's Hammer 2.28 32-bit2417+15
−15
(+85)11.5 − 13.5
(+9−11=5)
46.0%
11.5 / 25
0.0%
+54
51.5%
1405
0.68
723
0 = 1 1 0 1 0 = 0 0 1 = 0 1 0 0 0 0 = 1 = 1 1 1 0
–   Chezzz 1.0.32409+15
−15
(+77)9 − 18
(+8−17=2)
33.3%
9.0 / 27
0.0%
−60
54.5%
1781
0.79
970
= 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 1 1 1 0 1 1 0 =
–   Averno 0.812396+15
−15
(+64)10 − 15
(+7−12=6)
40.0%
10.0 / 25
0.0%
−5
51.9%
1362
0.63
707
0 0 0 0 0 0 0 1 0 0 1 = = 0 1 = = 0 1 1 = 0 1 = 1
–   Scidlet 3.61 64-bit JA2390+15
−15
(+58)10.5 − 15.5
(+8−13=5)
40.4%
10.5 / 26
0.0%
−10
53.5%
1468
0.76
786
0 0 0 1 0 1 = 0 0 1 0 0 = 1 0 = 0 0 1 1 1 1 0 = 0 =
–   KnightX 1.922385+15
−15
(+53)16.5 − 9.5
(+14−7=5)
63.5%
16.5 / 26
0.0%
+157
48.7%
1372
0.66
668
0 0 = = 0 = 1 1 = 0 1 1 1 1 1 1 1 1 1 0 1 0 1 0 = 1
–   Eeyore 1.482384+15
−15
(+52)8 − 15
(+3−10=10)
34.8%
8.0 / 23
0.0%
−42
51.8%
960
0.83
497
= = 0 = 1 0 0 = 1 = 0 = 0 = = 0 = 1 = 0 0 0 0
–   EXchess 5.01 beta 64-bit JA2355+14
−14
(+23)9.5 − 17.5
(+7−15=5)
35.2%
9.5 / 27
3.9%
−85
52.5%
1677
0.66
881
0 1 0 = 0 1 1 = 0 0 1 1 0 0 0 0 1 1 = 0 0 0 = 0 0 = 0
–   Esc 1.162345+15
−15
(+13)16 − 12
(+14−10=4)
57.1%
16.0 / 28
16.8%
+67
54.5%
1607
0.70
876
0 0 0 1 1 = 1 1 1 1 1 1 0 = 0 = 0 1 1 0 1 1 = 0 1 0 1 0
–   Dorky 3.482308+16
−16
(−24)13.5 − 8.5
(+12−7=3)
61.4%
13.5 / 22
95.9%
+67
51.2%
1341
0.89
687
1 = 1 = 1 = 0 0 0 1 0 1 1 0 0 1 0 1 1 1 1 1
–   Madeleine 0.22285+15
−15
(−47)15.5 − 10.5
(+14−9=3)
59.6%
15.5 / 26
100.0%
+32
54.4%
1643
0.81
893
1 1 1 1 1 0 0 1 1 0 0 1 0 = = 0 1 = 1 1 0 0 1 0 1 1
–   Chispa 4.0.32273+14
−14
(−59)13.5 − 11.5
(+8−6=11)
54.0%
13.5 / 25
100.0%
−32
49.5%
1000
0.74
495
= 0 0 0 1 0 = 0 = = = 1 1 1 = 1 = 1 = 1 = 1 = 0 =
–   InmiChess 3.06N2241+15
−15
(−91)19 − 9
(+15−5=8)
67.9%
19.0 / 28
100.0%
+33
52.3%
1324
0.89
693
1 1 = 1 0 1 1 0 0 1 = = = 1 = 1 1 = 1 0 1 = = 0 1 1 1 1
–   Nesik 0.7.0 alpha2237+16
−16
(−95)15 − 11
(+13−9=4)
57.7%
15.0 / 26
100.0%
−37
52.2%
1551
0.75
810
1 0 1 1 1 1 1 0 = 0 0 0 1 = 1 = 1 = 0 0 0 1 1 1 1 0
–   Sunsetter C10.3 64-bit JA2232+16
−16
(−100)13 − 10
(+11−8=4)
56.5%
13.0 / 23
100.0%
−50
53.0%
1310
0.90
694
1 1 = 1 1 0 0 1 1 0 0 = 1 0 0 1 1 1 = 0 1 0 =
–   Fortress 1.622216+15
−15
(−116)17 − 10
(+16−9=2)
63.0%
17.0 / 27
100.0%
−8
54.0%
1787
1.00
965
1 1 1 1 0 = 1 0 0 0 0 0 1 1 1 1 1 1 1 1 = 1 1 0 0 1 0
–   WJChess 1.642215+16
−16
(−117)20.5 − 8.5
(+19−7=3)
70.7%
20.5 / 29
100.0%
+52
53.0%
1882
0.85
997
1 1 1 1 1 1 0 1 1 1 1 1 1 0 0 1 = 1 0 = = 1 1 0 0 1 1 1 0
–   Gk 0.90 64-bit JA2194+16
−16
(−138)19.5 − 7.5
(+16−4=7)
72.2%
19.5 / 27
100.0%
+21
52.0%
1330
1.20
692
0 1 = 1 = = = 1 0 1 1 1 1 1 0 1 1 = 1 1 1 1 = = 1 1 0
–   Matheus 2.32144+15
−15
(−188)16.5 − 10.5
(+15−9=3)
61.1%
16.5 / 27
100.0%
−97
52.9%
1649
0.99
872
1 1 1 0 1 0 1 1 0 0 1 1 1 1 0 0 1 = = 0 1 1 0 1 1 0 =
–   Bestia 0.902122+15
−15
(−210)17 − 8
(+16−7=2)
68.0%
17.0 / 25
100.0%
−59
53.3%
1571
0.91
838
1 1 0 1 1 = 0 1 0 0 1 1 1 1 1 1 0 1 1 0 1 1 0 = 1
–   Ax 0.82119+15
−15
(−213)21.5 − 7.5
(+19−5=5)
74.1%
21.5 / 29
100.0%
−26
  
1 1 = 1 1 1 = 1 = 0 = 1 1 1 1 0 1 1 0 1 1 0 1 1 = 1 1 0 1
–   DelphiMax 2.92102+16
−16
(−230)16.5 − 9.5
(+15−8=3)
63.5%
16.5 / 26
100.0%
−124
52.5%
1445
1.01
758
1 0 0 0 0 1 0 1 = 1 = 1 0 1 1 = 1 1 1 1 1 1 0 1 0 1
–   Faile 1.4.42042+15
−15
(−290)19.5 − 4.5
(+17−2=5)
81.3%
19.5 / 24
100.0%
−50
53.4%
1235
1.27
660
1 = 1 1 = 1 1 1 = = 1 = 1 1 0 1 1 1 0 1 1 1 1 1

Performance

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

Perf = C + 0.166 [±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