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

Options
Show each game results
Arion 1.7 UCI#77  (2411+17
−17		)Quote
Author: Gabriel Guillory (France) Released: 2006-03-07Link: Homepage
This engine is stable and runs without issues.
This is the only Arion version we tested.
OpponentEloDiffResultsScoreLOSPerfPond
hit		Eval
diff
–   Nejmet 3.072519+16
−16		(+108)5.5 − 18.5
(+1−14=9)
22.9%
5.5 / 24
0.0%
−74
62.0%
1378
0.79
854
0 0 = 0 = = 0 0 = = = 0 0 = 0 0 0 = 0 1 0 0 0 =
–   Snitch 1.6.2 32-bit2519+15
−15		(+108)9.5 − 17.5
(+5−13=9)
35.2%
9.5 / 27
0.0%
+8
59.8%
1799
0.65
1075
0 0 = 0 = 0 0 = = 0 0 1 1 1 = = 0 0 0 0 = 1 0 = 1 = 0
–   KnightDreamer 3.32496+17
−17		(+85)7 − 16
(+4−13=6)
30.4%
7.0 / 23
0.0%
−51
59.4%
1615
0.64
960
0 = 0 1 0 0 0 0 0 0 0 0 = 1 1 = 0 1 0 = = 0 =
–   Amy 0.8.7b DC2493+17
−17		(+82)12 − 15
(+10−13=4)
44.4%
12.0 / 27
0.0%
+39
60.4%
2386
0.67
1440
1 0 0 0 = 0 1 1 1 1 1 0 = 0 = 0 0 1 0 1 0 0 1 0 1 0 =
–   Francesca MAD 0.13 Nobook2493+19
−19		(+82)5.5 − 13.5
(+3−11=5)		28.9%
5.5 / 19
0.0%
−67
65.9%
1346
0.89
887
0 = 1 0 0 0 0 1 = = 0 0 0 = 0 1 0 = 0
–   Leila 0.53h2483+17
−17		(+72)9.5 − 13.5
(+7−11=5)
41.3%
9.5 / 23
0.0%
+2
61.0%
1807
0.66
1102
0 0 0 0 1 1 1 1 = 1 0 0 0 = 1 0 = = 1 = 0 0 0
–   Diablo 0.5.1 JA2478+17
−17		(+67)18.5 − 13.5
(+13−8=11)
57.8%
18.5 / 32
0.0%
+120
60.7%
1968
0.52
1194
= = = 0 = 0 1 1 = = 1 = 1 0 1 0 1 0 0 1 = 1 1 = 0 1 1 1 0 1 = =
–   PostModernist 10162475+17
−17		(+64)17.5 − 14.5
(+14−11=7)
54.7%
17.5 / 32
0.0%
+98
64.7%
2547
0.64
1647
1 1 0 1 0 0 = 0 = 1 1 = 1 0 1 0 = 1 1 = = 0 0 1 1 1 0 0 1 1 0 =
–   Comet B682473+15
−15		(+62)7.5 − 19.5
(+4−16=7)
27.8%
7.5 / 27
0.0%
−99
61.0%
1827
0.99
1115
= 0 0 = = 0 0 = 0 = 1 0 1 0 0 0 0 0 0 0 0 0 = = 1 0 1
–   Djinn 0.925x2472+16
−16		(+61)7.5 − 20.5
(+4−17=7)
26.8%
7.5 / 28
0.0%
−108
61.0%
1838
0.54
1121
0 = 1 1 0 0 0 = 0 0 0 = = 0 0 0 = = = 0 0 1 1 0 0 0 0 0
–   Sjeng 12.132472+15
−15		(+61)11.5 − 14.5
(+7−10=9)
44.2%
11.5 / 26
0.0%
+21
60.1%
1577
0.71
948
1 = 0 = 0 = 1 = 1 0 1 0 0 = 1 = 1 1 0 = = 0 = 0 0 0
–   Muse 0.899b2472+17
−17		(+61)10 − 12
(+7−9=6)
45.5%
10.0 / 22
0.0%
+35
56.0%
1510
0.94
845
= 1 0 = 0 0 1 0 0 1 0 1 0 = 1 1 = 1 0 = = 0
–   Patzer 3.802458+17
−17		(+47)14.5 − 17.5
(+9−12=11)
45.3%
14.5 / 32
0.0%
+15
56.3%
2095
1.20
1180
1 0 1 1 0 = 0 = 1 1 0 = 1 0 = 1 0 0 0 0 = = 0 1 = = = 0 = 1 = 0
–   Der Bringer 1.92458+16
−16		(+47)9.5 − 15.5
(+5−11=9)
38.0%
9.5 / 25
0.0%
−32
63.7%
1839
0.60
1171
1 1 0 0 0 0 1 = = = 1 0 0 0 0 1 0 0 = = = = = 0 =
–   The Crazy Bishop 00522455+16
−16		(+44)8 − 17
(+5−14=6)
32.0%
8.0 / 25
0.0%
−84
57.5%
2288
0.42
1316
0 = 0 = 0 1 0 1 1 0 0 0 0 = 1 0 = = 1 = 0 0 0 0 0
–   Gosu 0.162449+17
−17		(+38)17 − 15
(+13−11=8)
53.1%
17.0 / 32
0.1%
+58
58.8%
2702
0.72
1590
1 1 = 0 1 0 1 1 = 1 0 0 0 1 = = 1 = 0 1 = 0 = 1 0 = 0 1 0 1 1 0
–   Phalanx XXII Reborn JA2448+15
−15		(+37)7.5 − 17.5
(+5−15=5)
30.0%
7.5 / 25
0.1%
−119
58.9%
1782
0.74
1050
1 0 0 = 0 0 = 1 1 0 = 0 0 0 1 0 0 1 0 0 0 = 0 0 =
–   Amateur 2.822446+16
−16		(+35)10 − 17
(+5−12=10)
37.0%
10.0 / 27
0.1%
−55
57.6%
1445
1.40
832
0 = 1 0 0 = 1 = 0 1 0 = = = 0 = 1 = = 1 0 0 = 0 0 0 0
–   Betsy 6.51 Nobook2444+16
−16		(+33)18 − 11
(+12−5=12)
62.1%
18.0 / 29
0.2%
+111
64.1%
1927
0.56
1236
1 = 1 1 1 = = = = 1 1 = 1 1 = = 1 = 1 1 1 0 0 = 0 = = 0 0
–   GNU Chess 5.07.9b 64-bit JA2441+17
−17		(+30)15 − 17
(+11−13=8)
46.9%
15.0 / 32
0.6%
+3
59.2%
2507
0.84
1483
0 0 1 0 1 0 = 0 1 1 = 1 0 1 = = 0 1 = 1 0 0 0 0 = 1 = 0 = 1 1 0
–   Thor's Hammer 2.28 32-bit2417+16
−16		(+6)16 − 14
(+13−11=6)
53.3%
16.0 / 30
30.3%
+30
60.7%
2294
0.92
1393
1 0 0 = = 0 1 = = 1 = 1 0 1 1 0 0 1 1 = 1 0 0 0 1 1 1 0 0 1
–   AICE 0.99.22407+17
−17		(−4)16 − 16
(+9−9=14)
50.0%
16.0 / 32
63.6%
−5
57.7%
1554
0.83
896
= = = = 0 0 0 0 = 1 = = 1 = 1 = 1 = = 1 0 = 0 1 1 = = 0 1 0 1 0
–   Chezzz 1.0.32405+16
−16		(−6)10.5 − 13.5
(+9−12=3)
43.8%
10.5 / 24
69.7%
−58
59.0%
1814
0.63
1071
0 = 1 1 1 0 1 0 0 1 1 0 0 1 0 = = 1 0 0 1 0 0 0
–   Resp 0.19 64-bit JA Nobook2398+18
−18		(−13)14.5 − 7.5
(+13−6=3)
65.9%
14.5 / 22
86.1%
+117
60.9%
2085
0.45
1269
1 1 0 0 1 1 1 1 0 1 1 0 = = = 1 1 1 1 1 0 0
–   Averno 0.812389+16
−15		(−22)13 − 15
(+10−12=6)
46.4%
13.0 / 28
96.9%
−49
58.6%
2053
0.62
1204
1 0 1 0 = 1 = 1 0 0 1 = = 0 0 0 1 0 1 0 1 1 = 0 0 0 = 1
–   Scidlet 3.61 64-bit JA2384+16
−16		(−27)11.5 − 10.5
(+10−9=3)
52.3%
11.5 / 22
98.9%
−11
61.5%
2245
0.66
1380
0 0 1 = 1 1 1 0 1 0 0 0 0 = 1 1 1 1 0 = 1 0
–   KnightX 1.922379+16
−16		(−32)13.5 − 12.5
(+11−10=5)
51.9%
13.5 / 26
99.6%
−16
61.3%
1805
0.59
1107
1 1 = 1 1 0 0 0 0 0 1 1 1 = = 0 = = 0 1 1 1 0 1 0 0
–   Eeyore 1.482375+16
−16		(−36)14.5 − 9.5
(+11−6=7)
60.4%
14.5 / 24
99.9%
+35
62.2%
1404
0.60
873
= 1 0 = 0 0 1 = = 1 1 = 1 1 0 1 1 1 0 0 = 1 1 =
–   Ayito 0.2.9942363+17
−17		(−48)18 − 13
(+15−10=6)
58.1%
18.0 / 31
100.0%
+15
60.1%
2442
0.79
1467
0 = 1 0 1 0 0 0 1 1 1 1 = 1 = 1 1 0 1 = 0 0 1 1 = 1 0 1 = 0 1
–   EXchess 5.01 beta 64-bit JA2352+15
−15		(−59)16.5 − 10.5
(+12−6=9)
61.1%
16.5 / 27
100.0%
+20
60.0%
1734
0.67
1041
= = 1 1 1 0 0 = 1 1 = 1 = 0 = = 1 0 0 = = 1 1 0 1 1 1
–   Natwarlal 0.142350+18
−18		(−61)18 − 14
(+13−9=10)
56.3%
18.0 / 32
100.0%
−15
59.9%
2542
0.86
1522
= = 1 1 1 1 = 1 0 0 0 1 0 = 0 = 0 1 1 1 0 = 1 = 0 = 1 0 1 = = 1
–   Esc 1.162338+16
−16		(−73)13.5 − 9.5
(+12−8=3)
58.7%
13.5 / 23
100.0%
+3
62.7%
1730
0.65
1085
0 0 1 1 = 0 0 1 1 = 0 1 1 0 0 0 1 1 = 1 1 1 1
–   Zeus 1.292337+18
−18		(−74)15 − 17
(+11−13=8)
46.9%
15.0 / 32
100.0%
−98
63.8%
2320
0.80
1479
0 0 0 0 1 = = 1 1 1 1 1 0 = 0 0 = = 0 1 = 1 1 0 = 1 0 0 0 0 = 1
–   ANT 2006-F2325+18
−17		(−86)17 − 10
(+15−8=4)
63.0%
17.0 / 27
100.0%
+22
58.8%
2337
0.45
1375
= 0 1 = 1 1 1 1 1 0 1 0 1 0 = 1 0 1 1 1 0 1 1 = 0 0 1
–   Anechka 0.082314+17
−17		(−97)22.5 − 9.5
(+17−4=11)
70.3%
22.5 / 32
100.0%
+41
62.0%
2219
0.51
1375
1 1 = = 0 1 = 1 = = = 1 = 1 1 0 0 1 1 = 1 = 1 = 1 1 1 0 1 1 1 =
–   Dorky 3.482295+16
−16		(−116)20 − 9
(+15−4=10)
69.0%
20.0 / 29
100.0%
+14
60.2%
1782
0.82
1072
= = 1 = = 1 1 1 0 = = 0 1 1 1 = = 1 1 1 1 1 0 = = 1 1 0 1
–   CyberPagno 2.1 32MB2292+16
−16		(−119)18.5 − 5.5
(+15−2=7)
77.1%
18.5 / 24
100.0%
+75
64.7%
1604
0.55
1037
1 1 1 0 0 1 1 = = 1 1 1 1 1 = = = 1 1 = 1 1 1 =
–   Latista (Sinobyl) 1.52281+17
−17		(−130)16 − 13
(+13−10=6)
55.2%
16.0 / 29
100.0%
−89
58.3%
2269
0.61
1323
= = 0 0 1 0 0 0 1 = = 1 = 0 1 1 1 1 0 = 1 1 0 0 1 0 1 1 1
–   Madeleine 0.22277+16
−16		(−134)21 − 10
(+17−6=8)
67.7%
21.0 / 31
100.0%
−3
61.3%
2006
0.63
1230
1 0 1 1 1 = 1 1 1 1 1 = 1 = 1 = = 0 1 1 1 = 1 0 1 0 0 0 = = 1
–   Chispa 4.0.32266+15
−15		(−145)16.5 − 9.5
(+11−4=11)
63.5%
16.5 / 26
100.0%
−61
59.6%
1558
0.72
928
1 0 = = = = 1 = = 1 = 1 1 = 0 0 1 1 1 0 1 = = = 1 1
–   Atlas 2.202255+18
−17		(−156)22 − 5
(+19−2=6)
81.5%
22.0 / 27
100.0%
+87
  
1 = 1 1 1 = 1 = 1 0 0 1 1 1 1 = = 1 1 1 1 1 1 1 1 = 1
–   Genesis 2.02237+17
−17		(−174)21 − 6
(+19−4=4)
77.8%
21.0 / 27
100.0%
+48
63.7%
2030
0.59
1294
1 1 1 1 0 1 0 1 1 = 1 1 1 1 1 1 = 1 1 = 1 1 0 1 = 0 1
–   InmiChess 3.06N2228+15
−16		(−183)21.5 − 6.5
(+17−2=9)
76.8%
21.5 / 28
100.0%
+7
60.2%
1645
0.78
990
1 = 1 1 0 = 1 1 1 1 1 1 = 1 1 0 = 1 = 1 1 = 1 = = 1 1 =
1170 games in total: 451 wins, 406 losses, 313 draws (26.8%), score: 51.9%
Average opponent: −15.0 (2396), average distance to opponent: 70.3

Performance

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

Perf = C − 0.095 [±0.229] * 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