KCEC
(Kirr's Chess Engine Comparison)
A tournament of original free chess engines
August 14, 2010
Testing summary:
Total: 89,765 games
played by 153 programs
937 CPU days (X2 4600+)

White wins: 36,316 (40.5%)
Black wins: 30,946 (34.5%)
Draws: 22,503 (25.1%)
White score: 53.0%

Engine Details

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GNU Chess 5.07.9b 64-bit JA WB  #75  (2441+17
−17		)Quote
Authors: Chua Kong-Sian (Singapore), Stuart Cracraft (USA) 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 done by Michel Van den Bergh, and 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 10.992530+17
−17		(+89)12.5 − 19.5
(+9−16=7)
39.1%
12.5 / 32
0.0%
+6
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 4.62521+16
−16		(+80)13 − 19
(+8−14=10)
40.6%
13.0 / 32
0.0%
+17
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 3.072519+16
−16		(+78)11 − 21
(+7−17=8)
34.4%
11.0 / 32
0.0%
−35
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-bit2519+15
−15		(+78)11 − 21
(+8−18=6)
34.4%
11.0 / 32
0.0%
−42
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
–   KnightDreamer 3.32496+17
−17		(+55)12.5 − 19.5
(+9−16=7)
39.1%
12.5 / 32
0.0%
−27
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 =
–   Amy 0.8.7b DC2493+17
−17		(+52)13.5 − 18.5
(+12−17=3)
42.2%
13.5 / 32
0.0%
−12
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
–   Francesca MAD 0.13 Nobook2493+19
−19		(+52)12 − 20
(+8−16=8)
37.5%
12.0 / 32
0.0%
−39
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 0.53h2483+17
−17		(+42)11.5 − 20.5
(+9−18=5)
35.9%
11.5 / 32
0.0%
−67
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 JA2478+17
−17		(+37)15.5 − 16.5
(+12−13=7)
48.4%
15.5 / 32
0.1%
+27
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 10162475+17
−17		(+34)18.5 − 13.5
(+14−9=9)
57.8%
18.5 / 32
0.2%
+89
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 =
–   Comet B682473+15
−15		(+32)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
–   Djinn 0.925x2472+16
−16		(+31)14.5 − 17.5
(+11−14=7)
45.3%
14.5 / 32
0.4%
−4
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
–   Sjeng 12.132472+15
−15		(+31)11.5 − 20.5
(+9−18=5)
35.9%
11.5 / 32
0.3%
−79
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 0.899b2472+17
−17		(+31)14.5 − 17.5
(+10−13=9)
45.3%
14.5 / 32
0.4%
−4
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
–   Patzer 3.802458+17
−17		(+17)10.5 − 21.5
(+7−18=7)
32.8%
10.5 / 32
7.7%
−115
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 1.92458+16
−16		(+17)22 − 10
(+17−5=10)
68.8%
22.0 / 32
7.2%
+148
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 = =
–   The Crazy Bishop 00522455+16
−16		(+14)17 − 15
(+14−12=6)
53.1%
17.0 / 32
10.4%
+39
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
–   Gosu 0.162449+17
−17		(+8)16.5 − 15.5
(+13−12=7)
51.6%
16.5 / 32
25.5%
+20
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 JA2448+15
−15		(+7)11.5 − 20.5
(+8−17=7)
35.9%
11.5 / 32
25.9%
−94
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
–   Amateur 2.822446+16
−16		(+5)15 − 17
(+12−14=6)
46.9%
15.0 / 32
34.0%
−18
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 =
–   Betsy 6.51 Nobook2444+16
−16		(+3)17 − 15
(+14−12=6)
53.1%
17.0 / 32
40.1%
+27
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
–   Thor's Hammer 2.28 32-bit2417+16
−16		(−24)16 − 16
(+14−14=4)
50.0%
16.0 / 32
98.2%
−24
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 1.72411+17
−17		(−30)17 − 15
(+13−11=8)
53.1%
17.0 / 32
99.4%
−3
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 0.99.22407+17
−17		(−34)18.5 − 13.5
(+14−9=9)
57.8%
18.5 / 32
99.8%
+20
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 1.0.32405+16
−16		(−36)17.5 − 14.5
(+14−11=7)
54.7%
17.5 / 32
99.9%
0
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
–   Resp 0.19 64-bit JA Nobook2398+18
−18		(−43)18 − 14
(+14−10=8)
56.3%
18.0 / 32
100.0%
+3
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 0.812389+16
−15		(−52)20.5 − 11.5
(+17−8=7)
64.1%
20.5 / 32
100.0%
+51
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 JA2384+16
−16		(−57)18.5 − 13.5
(+13−8=11)
57.8%
18.5 / 32
100.0%
−5
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 1.922379+16
−16		(−62)19.5 − 12.5
(+17−10=5)
60.9%
19.5 / 32
100.0%
+21
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 1.482375+16
−16		(−66)18.5 − 13.5
(+15−10=7)
57.8%
18.5 / 32
100.0%
−7
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 0.2.9942363+17
−17		(−78)21.5 − 10.5
(+20−9=3)
67.2%
21.5 / 32
100.0%
+66
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
–   EXchess 5.01 beta 64-bit JA2352+15
−15		(−89)24 − 8
(+20−4=8)
75.0%
24.0 / 32
100.0%
+95
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
–   Natwarlal 0.142350+18
−18		(−91)21.5 − 10.5
(+19−8=5)
67.2%
21.5 / 32
100.0%
+47
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
–   Esc 1.162338+16
−16		(−103)20 − 12
(+18−10=4)
62.5%
20.0 / 32
100.0%
−1
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
–   Zeus 1.292337+18
−18		(−104)20.5 − 11.5
(+18−9=5)
64.1%
20.5 / 32
100.0%
+6
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
–   ANT 2006-F2325+18
−17		(−116)19 − 13
(+15−9=8)
59.4%
19.0 / 32
100.0%
−47
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 0.082314+17
−17		(−127)19.5 − 12.5
(+16−9=7)
60.9%
19.5 / 32
100.0%
−47
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 3.482295+16
−16		(−146)24 − 8
(+21−5=6)
75.0%
24.0 / 32
100.0%
+51
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 32MB2292+16
−16		(−149)22.5 − 9.5
(+20−7=5)
70.3%
22.5 / 32
100.0%
+13
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) 1.52281+17
−17		(−160)21 − 11
(+16−6=10)
65.6%
21.0 / 32
100.0%
−50
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 0.22277+16
−16		(−164)22.5 − 9.5
(+20−7=5)
70.3%
22.5 / 32
100.0%
−2
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
1312 games in total: 556 wins, 479 losses, 277 draws (21.1%), score: 52.9%
Average opponent: −22.9 (2418.1), average distance to opponent: 61.6

Performance

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

Perf = C − 0.102 [±0.216] * 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 2005-2010 by Kirill Kryukov
Last games added on August 14, 2010