KCEC
(Kirr's Chess Engine Comparison)
A tournament of original free chess engines
June 21, 2010
Testing summary:
Total: 85,760 games
played by 148 programs
894 CPU days (X2 4600+)

White wins: 34,666 (40.4%)
Black wins: 29,495 (34.4%)
Draws: 21,599 (25.2%)
White score: 53.0%

Engine Details

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Show each game results
EXchess 5.01 beta 64-bit JA WB#86  (2352+16
−16		)Quote
Author: Daniel C. Homan (USA) Released: 2006-01-29Links: Homepage, Jim Ablett's compile
"JA" compile is made by Jim Ablett.
Issues with this engine: EXchess does not count the opening moves when a GUI opening book is used. This leads to incorrect time allocation and time trouble. (Bug details posted at Winboard forum). Still sometimes it loses on time.
This is the only EXchess version we tested.
OpponentEloDiffResultsScoreLOSPerfPond
hit		Eval
diff
–   Quark 2.352538+16
−16		(+186)4.5 − 15.5
(+2−13=5)
22.5%
4.5 / 20
0.0%
−26
55.1%
1425
0.87
785
0 0 = 0 = 0 0 0 0 = = 0 0 0 1 = 0 1 0 0
–   Dragon 4.62521+16
−16		(+169)6.5 − 17.5
(+2−13=9)
27.1%
6.5 / 24
0.0%
+19
59.7%
1144
0.61
683
0 0 0 1 = = 0 0 0 0 0 0 = 0 = = = 1 = 0 = 0 = 0
–   Snitch 1.6.2 32-bit2520+15
−15		(+168)6.5 − 20.5
(+3−17=7)
24.1%
6.5 / 27
0.0%
−23
52.6%
1629
0.81
857
= 0 = 0 1 0 1 0 0 0 0 0 0 0 = 0 0 = = 0 0 0 0 0 = 1 =
–   Nejmet 3.072519+16
−16		(+167)9 − 17
(+5−13=8)
34.6%
9.0 / 26
0.0%
+62
56.1%
1778
0.75
997
1 1 0 = = 0 1 = = = 0 0 0 0 1 1 0 = 0 0 = 0 = 0 0 0
–   KnightDreamer 3.32497+17
−17		(+145)6 − 21
(+3−18=6)
22.2%
6.0 / 27
0.0%
−64
57.0%
1997
0.61
1138
= 0 0 = 0 0 0 1 = 0 1 0 0 0 0 0 1 0 0 = 0 0 0 0 = 0 =
–   Amy 0.8.7b DC2494+17
−17		(+142)8.5 − 15.5
(+6−13=5)
35.4%
8.5 / 24
0.0%
+35
55.2%
1950
0.82
1076
1 0 0 0 1 0 0 0 = 1 = 0 = 0 0 1 1 0 1 = 0 = 0 0
–   Francesca MAD 0.13 Nobook2493+19
−19		(+141)4.5 − 15.5
(+3−14=3)
22.5%
4.5 / 20
0.0%
−85
59.0%
1673
0.80
987
= = = 0 1 0 0 1 0 0 0 1 0 0 0 0 0 0 0 0
–   Leila 0.53h2483+17
−17		(+131)6.5 − 18.5
(+4−16=5)
26.0%
6.5 / 25
0.0%
−50
57.2%
1716
1.02
982
0 0 0 0 0 1 0 0 0 0 = 0 0 = 1 1 0 1 = 0 0 = = 0 0
–   Comet B682474+15
−15		(+122)11 − 17
(+8−14=6)
39.3%
11.0 / 28
0.0%
+42
57.7%
2071
0.89
1195
0 1 0 0 1 0 = 1 1 0 0 = 0 0 1 0 0 0 = 0 = 0 1 1 1 = = 0
–   Muse 0.899b2473+17
−17		(+121)8.5 − 21.5
(+6−19=5)
28.3%
8.5 / 30
0.0%
−50
54.7%
2197
0.73
1201
0 0 1 0 0 = 0 0 0 0 1 1 = 0 0 0 0 0 = 0 1 0 = = 1 0 0 0 0 1
–   Sjeng 12.132472+15
−15		(+120)12 − 14
(+9−11=6)
46.2%
12.0 / 26
0.0%
+96
53.8%
1873
0.93
1007
0 1 0 1 = 1 1 1 1 0 0 1 1 0 0 = 0 = 0 = 0 0 1 = = 0
–   Djinn 0.925x2472+17
−17		(+120)10.5 − 16.5
(+7−13=7)
38.9%
10.5 / 27
0.0%
+36
54.4%
2104
0.72
1145
1 0 = 1 1 = = 0 0 1 0 1 = 0 0 = 0 0 1 0 = 0 1 0 0 = 0
–   Der Bringer 1.92458+16
−16		(+106)8.5 − 16.5
(+6−14=5)
34.0%
8.5 / 25
0.0%
−14
58.9%
1920
0.50
1131
0 1 0 1 0 0 1 = = = = 0 0 0 0 0 0 0 0 1 = 1 1 0 0
–   Patzer 3.802458+17
−17		(+106)9.5 − 22.5
(+7−20=5)
29.7%
9.5 / 32
0.0%
−55
54.5%
2127
1.36
1159
0 0 0 1 = 1 0 0 0 0 1 0 0 0 0 0 0 0 = 0 1 1 1 = 1 0 = 0 0 0 0 =
–   The Crazy Bishop 00522452+16
−16		(+100)9.5 − 18.5
(+4−13=11)
33.9%
9.5 / 28
0.0%
−8
58.7%
1538
0.56
903
= = 0 0 1 1 0 0 1 = = 0 = 0 0 0 0 0 0 = = = 0 = 0 = 1 =
–   Phalanx XXII Reborn JA2450+15
−15		(+98)8 − 20
(+4−16=8)
28.6%
8.0 / 28
0.0%
−55
56.7%
1995
0.65
1132
0 = = 0 = 0 = 1 0 0 1 0 0 0 = 0 0 = 0 = 1 = 1 0 0 0 0 0
–   Gosu 0.162449+17
−17		(+97)12 − 20
(+7−15=10)
37.5%
12.0 / 32
0.0%
+11
47.0%
2595
1.06
1220
0 = 0 0 0 0 = 1 0 0 0 0 = 1 = 1 = 0 1 = 0 0 = = 1 0 = = 1 1 0 0
–   Betsy 6.51 Nobook2447+16
−16		(+95)9.5 − 20.5
(+6−17=7)
31.7%
9.5 / 30
0.0%
−41
59.8%
2502
0.62
1496
0 0 = 1 0 1 0 = 0 0 0 0 0 = 0 = 0 0 0 1 0 = 0 = 1 0 0 = 1 1
–   Amateur 2.822445+16
−16		(+93)9 − 21
(+6−18=6)
30.0%
9.0 / 30
0.0%
−59
58.1%
2049
1.01
1190
= 0 0 = 0 0 0 0 0 0 0 0 = 0 0 0 0 1 = 1 1 = 0 1 0 = 0 1 0 1
–   GNU Chess 5.07.9b 64-bit JA2440+17
−17		(+88)8 − 24
(+4−20=8)
25.0%
8.0 / 32
0.0%
−96
50.1%
2277
0.95
1141
0 = 0 0 0 0 0 0 0 1 0 0 0 0 0 = 0 0 = = 1 0 = 0 0 0 0 = = 1 = 1
–   Thor's Hammer 2.28 32-bit2416+16
−16		(+64)8 − 19
(+4−15=8)
29.6%
8.0 / 27
0.0%
−82
57.2%
1759
0.64
1006
0 0 = 0 0 = 0 1 1 = 0 = 0 0 1 = 1 = 0 0 0 = = 0 0 0 0
–   Arion 1.72415+18
−18		(+63)10.5 − 16.5
(+6−12=9)
38.9%
10.5 / 27
0.0%
−16
60.0%
1734
0.67
1041
= = 0 0 0 1 1 = 0 0 = 0 = 1 = = 0 1 1 = = 0 0 1 0 0 0
–   AICE 0.99.22410+17
−17		(+58)17.5 − 14.5
(+13−10=9)
54.7%
17.5 / 32
0.0%
+88
53.0%
2045
0.86
1083
0 = 1 1 0 = = 0 1 = 1 1 1 = 0 1 1 0 0 0 1 = 0 = 0 = 0 1 = 1 1 1
–   Chezzz 1.0.32403+16
−16		(+51)9 − 18
(+6−15=6)
33.3%
9.0 / 27
0.0%
−76
53.3%
2235
0.76
1192
= 1 0 0 0 0 0 0 0 1 = 0 = = = 1 0 0 1 0 1 0 1 0 = 0 0
–   Resp 0.19 64-bit JA Nobook2401+18
−18		(+49)6.5 − 17.5
(+3−14=7)
27.1%
6.5 / 24
0.0%
−110
60.9%
1889
0.48
1150
1 0 = 0 0 0 0 0 0 = 0 0 = 0 0 = = 1 = 0 0 0 = 1
–   Averno 0.812391+16
−16		(+39)11.5 − 15.5
(+8−12=7)
42.6%
11.5 / 27
0.0%
−16
55.5%
1979
0.71
1099
= 1 0 1 1 0 1 = 1 0 1 = 0 = 1 0 0 0 0 0 0 0 = = 1 = 0
–   Scidlet 3.61 64-bit JA2387+16
−16		(+35)15.5 − 12.5
(+13−10=5)
55.4%
15.5 / 28
0.1%
+79
60.1%
2243
0.72
1347
0 1 0 0 1 1 = 1 = 0 1 0 0 1 = = 1 0 1 1 0 = 1 1 0 1 1 0
–   KnightX 1.922378+17
−17		(+26)17 − 9
(+14−6=6)
65.4%
17.0 / 26
1.2%
+143
56.5%
1778
0.83
1005
= 1 1 1 1 = 1 1 1 1 0 1 = 0 1 0 1 0 1 0 = 1 = = 0 1
–   Eeyore 1.482376+16
−16		(+24)14 − 11
(+9−6=10)
56.0%
14.0 / 25
1.7%
+63
58.1%
1370
0.88
796
0 = 1 0 = = 0 = = = 1 1 1 = 1 1 0 = = 0 1 = 1 1 0
–   Ayito 0.2.9942360+18
−18		(+8)15 − 12
(+12−9=6)
55.6%
15.0 / 27
24.4%
+52
52.7%
2145
0.85
1131
1 0 0 1 1 0 = = 0 1 = 0 1 0 1 1 1 1 = 1 1 0 0 = 0 = 1
–   Esc 1.162337+17
−17		(−15)14 − 10
(+10−6=8)
58.3%
14.0 / 24
90.5%
+47
55.1%
1558
0.71
859
= 1 0 1 1 1 = = 0 0 = = 1 1 = 0 1 0 1 1 = 1 = 0
–   Ant 2006-F2327+18
−18		(−25)8.5 − 16.5
(+5−13=7)
34.0%
8.5 / 25
98.3%
−135
53.9%
1695
0.71
914
0 0 0 1 0 0 0 0 = 0 0 0 = = 1 0 = = 1 1 = = 0 1 0
–   GNU Chess 5.07 64-bit JA2324+21
−22		(−28)17.5 − 9.5
(+15−7=5)
64.8%
17.5 / 27
98.0%
+83
52.5%
1677
0.66
881
1 0 1 = 1 0 0 = 1 1 0 0 1 1 1 1 0 0 = 1 1 1 = 1 1 = 1
–   Anechka 0.082316+18
−18		(−36)16.5 − 15.5
(+10−9=13)
51.6%
16.5 / 32
99.9%
−26
54.0%
2097
0.75
1132
1 1 1 0 1 = = 0 0 = = 0 0 = = = = 0 1 = 1 0 = 1 1 = = = 0 1 1 0
–   Dorky 3.482293+17
−17		(−59)14 − 14
(+8−8=12)
50.0%
14.0 / 28
100.0%
−62
57.2%
1566
1.24
895
1 = 1 0 = 1 = = 1 0 = 0 = = 0 0 1 0 0 = = 0 = 1 = 1 1 =
–   CyberPagno 2.1 32MB2293+17
−17		(−59)15 − 9
(+13−7=4)
62.5%
15.0 / 24
100.0%
+39
56.0%
1729
0.77
969
= 0 1 1 0 1 = 1 0 0 1 1 0 1 1 1 1 1 = 1 = 0 1 0
–   Latista (Sinobyl) 1.52285+17
−17		(−67)10.5 − 15.5
(+5−10=11)
40.4%
10.5 / 26
100.0%
−125
59.2%
1347
0.64
798
0 = 0 0 = 1 = = = 0 1 = 0 = = 0 0 = = 1 1 1 = 0 0 0
–   Madeleine 0.22279+17
−17		(−73)15.5 − 11.5
(+13−9=5)
57.4%
15.5 / 27
100.0%
−14
52.5%
2013
0.88
1057
1 0 1 1 = 1 1 0 1 1 1 0 0 1 1 = 0 1 = 0 = 0 0 1 0 1 =
–   Chispa 4.0.32263+15
−15		(−89)21.5 − 7.5
(+16−2=11)
74.1%
21.5 / 29
100.0%
+70
53.8%
1661
1.06
894
1 1 1 = 1 = = = 0 0 1 = = = = 1 1 1 1 1 1 1 = 1 = = 1 1 1
–   Atlas 2.202256+18
−18		(−96)18.5 − 9.5
(+15−6=7)
66.1%
18.5 / 28
100.0%
+19
  
= 1 0 = 1 = 0 1 1 = 1 1 1 0 0 1 0 = 1 = 1 1 = 1 1 1 1 0
–   Genesis 2.02239+18
−18		(−113)19 − 7
(+16−4=6)
73.1%
19.0 / 26
100.0%
+58
56.8%
1715
0.73
974
1 0 = 1 1 0 1 1 1 1 1 1 0 = 1 1 1 0 1 1 = = 1 1 = =
–   InmiChess 3.06N2227+16
−16		(−125)14.5 − 8.5
(+11−5=7)
63.0%
14.5 / 23
100.0%
−37
54.9%
1320
0.81
725
1 1 1 0 0 = 1 1 = 0 1 1 = 1 1 = 1 = 1 0 = 0 =
–   Nesik 0.7.0 alpha2224+17
−17		(−128)14.5 − 6.5
(+13−5=3)
69.0%
14.5 / 21
100.0%
+27
55.6%
1560
0.67
868
1 1 = 0 1 1 1 1 1 1 1 0 1 0 = 1 1 0 = 1 0
–   Sunsetter C10.3 64-bit JA2222+17
−17		(−130)17 − 9
(+14−6=6)
65.4%
17.0 / 26
100.0%
−14
56.4%
1754
0.88
989
0 0 1 1 0 0 1 1 = 0 = 1 1 1 1 1 = 1 = 0 1 1 = = 1 1
–   Alarm 0.93.12217+17
−17		(−135)22.5 − 9.5
(+21−8=3)
70.3%
22.5 / 32
100.0%
+34
56.9%
2550
0.84
1450
0 = 1 1 1 = 0 0 1 1 1 1 1 0 1 1 1 1 1 1 1 1 1 1 0 0 0 1 0 1 = 1
–   WJChess 1.642214+17
−17		(−138)20 − 6
(+17−3=6)
76.9%
20.0 / 26
100.0%
+65
59.2%
1631
0.66
966
1 = 0 1 1 = 1 = = = 1 1 1 0 1 1 1 1 0 1 1 1 1 = 1 1
–   Fortress 1.622202+17
−17		(−150)20 − 6
(+17−3=6)
76.9%
20.0 / 26
100.0%
+54
55.7%
1804
0.89
1004
= 1 1 1 1 1 = = 1 1 1 = = 1 0 1 1 1 0 1 1 1 1 1 0 =
–   Gk 0.90 64-bit JA2180+17
−17		(−172)19.5 − 7.5
(+17−5=5)
72.2%
19.5 / 27
100.0%
−1
56.1%
1954
1.07
1097
1 = 1 1 1 1 1 1 1 = 1 = 1 1 0 = 1 0 0 0 1 1 1 1 = 0 1
–   Wing 2.0a2163+17
−17		(−189)19 − 7
(+15−3=8)
73.1%
19.0 / 26
100.0%
−25
58.0%
1547
0.73
897
1 = = 1 1 1 = 1 1 = 1 1 1 1 0 1 1 = = 1 1 0 = = 1 0
–   Matheus 2.32133+16
−16		(−219)17 − 4
(+15−2=4)
81.0%
17.0 / 21
100.0%
+28
57.8%
1520
1.03
878
1 1 1 1 1 1 1 1 1 0 1 = = 1 0 1 1 1 = = 1
–   Bodo 0.2b2124+17
−17		(−228)21 − 5
(+18−2=6)
80.8%
21.0 / 26
100.0%
+12
56.3%
1321
0.64
744
= 1 1 1 = 0 0 1 1 = 1 = 1 1 1 = 1 = 1 1 1 1 1 1 1 1
–   Bestia 0.902108+16
−16		(−244)22 − 3
(+20−1=4)
88.0%
22.0 / 25
100.0%
+77
54.3%
2052
0.90
1115
1 1 1 1 = = 1 1 1 1 1 = 1 1 1 = 1 1 1 0 1 1 1 1 1
–   Ax 0.82105+16
−16		(−247)20.5 − 5.5
(+18−3=5)
78.8%
20.5 / 26
100.0%
−20
  
0 1 1 0 1 = 0 1 1 1 1 1 1 1 = 1 1 1 1 = 1 = 1 = 1 1
–   DelphiMax 2.92092+17
−17		(−260)21.5 − 4.5
(+20−3=3)
82.7%
21.5 / 26
100.0%
+18
55.5%
1921
0.82
1067
1 1 1 1 0 1 1 0 1 1 1 1 1 = 1 1 = 1 1 1 1 1 1 = 0 1
–   Faile 1.4.42029+17
−17		(−323)27.5 − 1.5
(+27−1=1)
94.8%
27.5 / 29
100.0%
+184
57.3%
2095
0.93
1200
1 1 1 1 1 0 1 1 1 1 1 1 1 1 1 1 1 1 1 = 1 1 1 1 1 1 1 1 1
–   Sharper 0.172000+18
−18		(−352)22.5 − 2.5
(+21−1=3)
90.0%
22.5 / 25
100.0%
+6
53.4%
1714
1.19
915
1 1 1 1 = 1 1 1 1 1 1 0 = 1 1 1 1 = 1 1 1 1 1 1 1
1492 games in total: 580 wins, 548 losses, 364 draws (24.4%), score: 51.1%
Average opponent: −12.2 (2339.8), average distance to opponent: 116.7

Performance

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

Perf = C − 0.128 [±0.119] * 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 June 21, 2010