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 5.07.9b 64-bit JA WB    #78  (2448+16
−16		)Quote
Authors: Chua Kong-Sian (Singapore), Stuart Cracraft (USA), Michel Van den Bergh (Netherlands) Released: 2009-11-14Links: Homepage, GnuWin32, Bugfixes by Michel Van den Bergh, Jim Ablett's compiles, Winboard forum thread
This is GNU Chess 5.07 with bugfixes and improvements by Michel Van den Bergh, compiled by Jim Ablett.
Issues with this engine: Occasional crashes.
This is one of the 2 GNU Chess versions we tested: Compare them!
OpponentEloDiffResultsScoreLOSPerfPond
hit		Eval
diff
–   LambChop 10.992531+17
−17		(+83)12.5 − 19.5
(+9−16=7)
39.1%
12.5 / 32
0.0%
+3
58.0%
2220
0.69
1288
0 0 1 = = 0 0 1 0 = = 1 = 1 1 0 0 0 0 0 1 1 1 0 1 = 0 0 0 0 = 0
–   Dragon 4.62524+16
−16		(+76)13 − 19
(+8−14=10)
40.6%
13.0 / 32
0.0%
+15
49.9%
2220
0.89
1107
0 1 0 1 0 0 = 0 = 1 = 1 = = 1 0 0 0 0 0 = 0 = = 0 0 = 1 1 1 0 =
–   Nejmet 3.072521+16
−16		(+73)11 − 21
(+7−17=8)
34.4%
11.0 / 32
0.0%
−37
51.9%
2281
0.78
1183
0 1 0 = 1 1 1 0 0 1 = 0 1 1 = 0 0 = = 0 0 0 0 = 0 = 0 = 0 0 0 0
–   Snitch 1.6.2 32-bit2521+15
−15		(+73)11 − 21
(+8−18=6)
34.4%
11.0 / 32
0.0%
−44
54.4%
2573
0.70
1399
0 1 0 = 0 0 0 = 0 1 0 = 1 0 0 0 0 0 = 1 0 0 1 1 1 = 1 0 = 0 0 0
–   Amy 0.8.7b DC2500+17
−17		(+52)13.5 − 18.5
(+12−17=3)
42.2%
13.5 / 32
0.0%
−10
54.4%
2715
0.63
1478
= 0 1 0 1 1 1 1 1 0 0 0 1 0 0 0 = = 0 0 0 1 1 0 0 0 0 1 0 1 0 1
–   KnightDreamer 3.32499+16
−16		(+51)12.5 − 19.5
(+9−16=7)
39.1%
12.5 / 32
0.0%
−28
54.2%
2220
0.75
1203
1 0 0 0 0 0 0 0 = 1 0 = 0 1 1 1 0 1 1 = = 1 1 = = 0 0 0 0 0 0 =
–   Francesca MAD 0.13 Nobook2493+19
−19		(+45)12 − 20
(+8−16=8)
37.5%
12.0 / 32
0.0%
−43
58.5%
2550
0.73
1492
0 0 0 = = = = 1 0 1 = 0 1 = 1 0 0 0 = = 0 1 0 1 1 0 0 0 0 0 0 1
–   Leila 0.53h2490+17
−17		(+42)11.5 − 20.5
(+9−18=5)
35.9%
11.5 / 32
0.0%
−65
53.5%
2512
0.75
1345
= 0 0 1 1 0 1 0 = 1 1 0 0 = 0 0 1 = 1 0 0 0 0 1 1 0 0 0 0 = 0 0
–   Diablo 0.5.1 JA2482+16
−16		(+34)15.5 − 16.5
(+12−13=7)
48.4%
15.5 / 32
0.1%
+24
56.0%
2595
0.68
1452
1 1 = 1 0 1 0 1 1 0 = 0 = 0 1 1 1 0 1 0 0 0 0 0 = 1 0 = = 0 1 =
–   PostModernist 10162480+16
−16		(+32)18.5 − 13.5
(+14−9=9)
57.8%
18.5 / 32
0.2%
+86
58.1%
1950
0.64
1133
0 = = 1 = 1 1 0 0 0 0 1 1 0 = 0 0 1 1 0 1 = 1 1 1 1 1 = = = 1 =
–   Djinn 0.925x2479+16
−16		(+31)14.5 − 17.5
(+11−14=7)
45.3%
14.5 / 32
0.2%
−3
52.9%
2349
0.66
1242
= 0 0 = 0 = 0 1 = 0 = 0 1 0 0 = 1 1 0 1 0 = 1 1 1 1 0 0 0 1 1 0
–   Comet B682478+14
−14		(+30)13.5 − 18.5
(+11−16=5)
42.2%
13.5 / 32
0.2%
−30
54.2%
2571
0.84
1394
0 1 0 0 = 1 1 0 = 0 1 1 0 0 0 1 0 0 0 1 1 0 0 1 = = 1 1 0 = 0 0
–   Sjeng 12.132475+14
−14		(+27)11.5 − 20.5
(+9−18=5)
35.9%
11.5 / 32
0.5%
−80
56.6%
2212
0.91
1252
0 0 1 = 1 0 1 1 0 1 = 0 0 1 1 = 0 0 0 0 = 0 0 0 0 0 1 0 = 0 0 1
–   Muse 0.899b2474+16
−16		(+26)14.5 − 17.5
(+10−13=9)
45.3%
14.5 / 32
0.8%
−7
50.0%
2236
0.81
1117
1 0 0 1 1 = 0 0 1 1 1 1 0 = 1 1 = = 1 = = = 0 0 0 0 0 0 0 = = 0
–   Queen 4.032466+17
−17		(+18)19 − 13
(+14−8=10)
59.4%
19.0 / 32
6.0%
+82
54.6%
2137
0.62
1167
= 0 = 1 0 1 = = 1 0 = 1 = = 0 1 0 1 0 0 = 1 0 1 1 1 1 1 = = 1 1
–   The Crazy Bishop 00522460+15
−15		(+12)17 − 15
(+14−12=6)
53.1%
17.0 / 32
13.3%
+36
53.1%
2640
0.89
1401
= 0 0 1 1 0 = 1 0 = 1 0 = 1 = = 0 1 0 0 0 0 1 1 1 1 0 1 0 1 1 1
–   Patzer 3.802460+16
−16		(+12)10.5 − 21.5
(+7−18=7)
32.8%
10.5 / 32
14.6%
−116
47.8%
2244
0.90
1072
1 0 0 = 1 0 0 0 1 0 0 1 0 0 = = 1 1 1 0 0 = 0 = 0 0 0 0 0 = 0 =
–   Der Bringer 1.92455+15
−15		(+7)22 − 10
(+17−5=10)
68.8%
22.0 / 32
25.9%
+135
54.9%
2082
0.83
1142
0 = 1 = 0 0 1 1 1 1 1 = 0 1 1 1 1 1 = 0 1 1 1 = 1 1 = = = 1 = =
–   Gosu 0.162455+16
−16		(+7)16.5 − 15.5
(+13−12=7)
51.6%
16.5 / 32
27.0%
+18
51.3%
2378
0.90
1221
0 1 0 0 1 0 = 0 = 1 = 1 0 0 0 1 0 1 = 0 1 = 1 1 1 = 0 = 1 1 1 0
–   Phalanx XXII Reborn JA2452+15
−15		(+4)11.5 − 20.5
(+8−17=7)
35.9%
11.5 / 32
35.2%
−95
51.2%
2454
0.79
1257
1 1 1 0 0 0 = 1 0 0 = = = 1 0 0 0 0 0 0 0 0 = 1 0 0 1 = 0 1 = 0
–   Homer 2.012452+17
−17		(+4)17.5 − 14.5
(+13−10=9)
54.7%
17.5 / 32
37.6%
+35
51.6%
2372
0.68
1223
1 = 0 = 0 = = 1 0 = = 1 0 1 1 0 0 1 1 1 0 = 0 0 0 1 = 1 1 1 = 1
–   Betsy 6.51 Nobook2450+15
−15		(+2)17 − 15
(+14−12=6)
53.1%
17.0 / 32
42.4%
+26
55.6%
3003
0.74
1670
0 1 1 0 1 0 0 1 = = 1 0 = 0 0 0 0 1 1 0 = 1 = 1 = 0 1 0 1 1 1 1
–   Amateur 2.822446+15
−15		(−2)15 − 17
(+12−14=6)
46.9%
15.0 / 32
57.7%
−25
53.3%
2165
1.11
1154
= 1 1 0 1 0 = = 1 0 1 0 0 0 = 1 1 1 0 = 1 1 0 0 0 0 1 0 1 0 0 =
–   Tytan 9.32 64-bit2429+17
−17		(−19)16 − 16
(+12−12=8)
50.0%
16.0 / 32
95.9%
−16
  
0 1 = 1 0 0 = 1 0 0 0 1 = 1 1 = 0 0 = 0 1 1 0 = 0 1 1 1 = 1 = 0
–   Sage 3.532424+19
−19		(−24)17.5 − 14.5
(+16−13=3)
54.7%
17.5 / 32
97.8%
+11
50.4%
2289
0.94
1154
1 0 = 1 = 0 0 0 1 0 1 0 0 1 1 1 0 1 0 1 1 0 1 = 1 0 0 0 1 1 1 1
–   Sorgenkind 0.42421+18
−18		(−27)15 − 17
(+12−14=6)
46.9%
15.0 / 32
99.0%
−50
48.1%
2370
0.93
1140
0 1 = 0 0 0 1 1 0 1 0 = 1 1 0 = 1 0 1 = = 0 0 0 = 0 0 1 1 1 0 1
–   Horizon 4.42419+18
−18		(−29)17 − 15
(+11−9=12)
53.1%
17.0 / 32
99.4%
−11
51.6%
1646
1.29
850
= 1 0 = 0 = 0 = 1 = 1 = 1 0 0 1 0 = = 0 1 = 1 0 1 0 = 1 1 = 1 =
–   Thor's Hammer 2.28 32-bit2417+15
−15		(−31)16 − 16
(+14−14=4)
50.0%
16.0 / 32
99.8%
−31
53.5%
2649
0.80
1417
0 0 1 0 0 0 1 1 0 1 1 1 1 1 0 = 0 0 = 1 0 1 0 0 0 1 1 1 1 0 = =
–   Arion 1.72415+16
−16		(−33)17 − 15
(+13−11=8)
53.1%
17.0 / 32
99.9%
−7
59.2%
2507
0.84
1483
1 1 0 1 0 1 = 1 0 0 = 0 1 0 = = 1 0 = 0 1 1 1 1 = 0 = 1 = 0 0 1
–   AICE 0.99.22411+16
−16		(−37)18.5 − 13.5
(+14−9=9)
57.8%
18.5 / 32
100.0%
+16
55.2%
2068
0.79
1141
0 0 = = 1 0 1 1 1 1 0 1 0 = 1 = 1 1 = 1 0 1 = 1 1 = = 0 0 = 1 0
–   Chezzz 1.0.32409+15
−15		(−39)17.5 − 14.5
(+14−11=7)
54.7%
17.5 / 32
100.0%
−4
51.8%
2271
0.95
1177
0 0 1 0 = 1 = 0 = 1 1 1 0 1 1 1 = 0 0 = 0 1 0 1 1 1 0 = 0 = 1 1
–   Asterisk 0.62402+17
−17		(−46)22.5 − 9.5
(+20−7=5)
70.3%
22.5 / 32
100.0%
+113
56.4%
2392
0.77
1350
1 1 = 1 1 = 1 1 = 1 1 1 0 0 = 1 1 0 1 0 = 1 1 1 0 1 1 0 1 1 0 1
–   Resp 0.19 64-bit JA Nobook2402+16
−16		(−46)18 − 14
(+14−10=8)
56.3%
18.0 / 32
100.0%
−1
54.7%
2518
0.75
1377
= = 1 1 0 = = 1 1 = 1 0 1 = 1 0 0 1 1 0 0 1 0 0 1 1 0 0 1 = = 1
–   Averno 0.812396+15
−15		(−52)20.5 − 11.5
(+17−8=7)
64.1%
20.5 / 32
100.0%
+48
50.7%
2355
0.77
1194
= 1 1 = 0 0 1 1 = 1 1 1 1 1 0 0 1 0 1 1 = = = 1 = 1 0 1 1 0 1 0
–   Scidlet 3.61 64-bit JA2390+15
−15		(−58)18.5 − 13.5
(+13−8=11)
57.8%
18.5 / 32
100.0%
−8
58.3%
1891
0.88
1102
= = 1 1 0 0 1 0 0 1 1 0 0 = 1 = = 1 1 = = = 1 1 1 = 0 = = 0 1 1
–   KnightX 1.922385+15
−15		(−63)19.5 − 12.5
(+17−10=5)
60.9%
19.5 / 32
100.0%
+18
49.4%
2193
0.77
1083
0 0 = 1 1 = 1 0 0 0 = 1 = 0 1 1 = 1 1 1 1 1 1 0 0 1 1 0 1 1 1 0
–   Eeyore 1.482384+15
−15		(−64)18.5 − 13.5
(+15−10=7)
57.8%
18.5 / 32
100.0%
−6
56.0%
2581
1.04
1445
1 = 1 = 0 0 1 1 0 0 1 = 1 0 0 1 = 1 0 1 = 1 1 0 = 1 1 = 0 1 1 0
–   Ayito 0.2.9942371+16
−16		(−77)21.5 − 10.5
(+20−9=3)
67.2%
21.5 / 32
100.0%
+63
50.0%
3433
0.83
1717
0 1 1 1 0 1 1 0 0 = 1 1 = 0 0 0 1 1 1 0 1 1 1 1 1 1 1 0 1 = 1 1
–   Matilde 2008 64-bit2368+15
−15		(−80)18 − 14
(+14−10=8)
56.3%
18.0 / 32
100.0%
−36
56.0%
1980
0.82
1109
1 = 1 1 = = 0 0 0 1 = 1 1 1 = 1 1 0 0 1 0 1 1 0 0 = 0 = 1 0 = 1
–   Natwarlal 0.142359+17
−17		(−89)21.5 − 10.5
(+19−8=5)
67.2%
21.5 / 32
100.0%
+45
55.2%
2623
0.79
1447
= 1 0 1 = 1 1 1 0 1 0 1 1 0 1 0 = 1 1 1 = 1 0 0 1 1 1 1 = 0 1 1
–   EXchess 5.01 beta 64-bit JA2355+14
−14		(−93)24 − 8
(+20−4=8)
75.0%
24.0 / 32
100.0%
+87
50.1%
2277
0.95
1141
1 = 1 1 1 1 1 1 1 0 1 1 1 1 1 = 1 1 = = 0 1 = 1 1 1 1 = = 0 = 0
–   Zeus 1.292346+16
−16		(−102)20.5 − 11.5
(+18−9=5)
64.1%
20.5 / 32
100.0%
+5
54.8%
2652
0.73
1453
0 1 1 0 0 0 0 1 = 1 0 = 1 1 1 1 0 1 1 0 1 1 = 0 1 = 1 1 1 = 1 1
–   Esc 1.162345+15
−15		(−103)20 − 12
(+18−10=4)
62.5%
20.0 / 32
100.0%
−4
52.2%
2811
0.80
1468
= = 1 1 = 1 1 1 0 1 0 1 1 1 1 1 0 0 0 1 0 0 1 1 1 0 0 1 0 1 = 1
–   ANT 2006-F2333+16
−16		(−115)19 − 13
(+15−9=8)
59.4%
19.0 / 32
100.0%
−48
53.1%
2139
0.76
1136
1 1 1 0 1 0 1 1 0 = 0 = 1 1 = 1 1 0 0 = = 1 = 1 1 0 0 0 = 1 1 =
–   Anechka 0.082320+16
−16		(−128)19.5 − 12.5
(+16−9=7)
60.9%
19.5 / 32
100.0%
−50
53.6%
2361
1.02
1265
0 1 1 0 1 1 0 = 0 = 1 1 0 1 = = 1 1 1 1 0 1 0 = 1 1 = 1 1 = 0 0
–   Dorky 3.482308+16
−16		(−140)24 − 8
(+21−5=6)
75.0%
24.0 / 32
100.0%
+52
53.2%
2134
0.76
1135
0 1 = 1 = 1 0 1 0 1 1 = 1 1 = 1 1 1 0 1 1 = 1 1 1 1 1 = 0 1 1 1
–   CyberPagno 2.1 32MB2295+16
−16		(−153)22.5 − 9.5
(+20−7=5)
70.3%
22.5 / 32
100.0%
+6
55.8%
2454
0.90
1370
1 1 1 0 1 = 1 = 1 0 1 1 1 1 0 1 1 0 0 1 1 0 1 1 = 1 = 1 = 0 1 1
–   Latista (Sinobyl) 1.52289+16
−16		(−159)21 − 11
(+16−6=10)
65.6%
21.0 / 32
100.0%
−52
51.4%
1969
0.77
1013
1 = = 1 1 0 1 = 0 1 1 = 1 = 0 = = 1 = 1 1 1 1 = = 1 1 1 0 1 0 0
–   Madeleine 0.22285+15
−15		(−163)22.5 − 9.5
(+20−7=5)
70.3%
22.5 / 32
100.0%
−4
53.1%
2450
1.13
1301
1 1 1 1 1 = 1 0 = 0 0 1 1 = 1 1 1 1 1 1 1 1 1 1 = 0 1 = 0 0 0 1
1568 games in total: 668 wins, 562 losses, 338 draws (21.6%), score: 53.4%
Average opponent: −25.1 (2422.9), average distance to opponent: 55.4

Performance

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

Perf = C − 0.078 [±0.218] * 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