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
Marvin 1.3.0 UCI#144  (2054+16
−16		)Quote
Author: Martin Danielsson (Sweden) Released: 2005-01-01Link: RWBC
This engine is stable and runs without issues.
This is the only Marvin version we tested.
OpponentEloDiffResultsScoreLOSPerfPond
hit		Eval
diff
–   Dorky 3.482308+16
−16		(+254)2.5 − 27.5
(+0−25=5)
8.3%
2.5 / 30
0.0%
−106
55.2%
1922
1.53
1061
0 = 0 0 0 0 = 0 = 0 0 0 0 0 0 0 0 0 0 0 = 0 0 0 0 0 0 0 0 =
–   CyberPagno 2.1 32MB2295+16
−16		(+241)4 − 23
(+2−21=4)
14.8%
4.0 / 27
0.0%
−52
56.3%
2156
0.58
1213
0 = = 0 0 0 = = 0 1 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0
–   Latista (Sinobyl) 1.52289+16
−16		(+235)5 − 24
(+1−20=8)
17.2%
5.0 / 29
0.0%
−2
55.1%
1566
0.87
863
0 0 0 0 0 = = 0 0 0 = 0 0 0 = 0 = = 0 1 0 = 0 = 0 0 0 0 0
–   Madeleine 0.22285+15
−15		(+231)2 − 28
(+0−26=4)
6.7%
2.0 / 30
0.0%
−169
55.0%
2075
1.18
1142
0 0 0 = 0 0 0 0 0 0 0 0 0 0 = 0 0 0 0 0 0 = 0 = 0 0 0 0 0 0
–   Chispa 4.0.32273+14
−14		(+219)7.5 − 19.5
(+1−13=13)
27.8%
7.5 / 27
0.0%
+82
54.8%
1083
1.14
594
0 = 0 0 = = 0 = = 0 0 = = 0 0 0 1 0 = = 0 = 0 = = = 0
–   Atlas 2.202271+17
−17		(+217)3 − 22
(+2−21=2)
12.0%
3.0 / 25
0.0%
−139
  
0 0 0 0 0 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 = 0 = 0 0
–   Genesis 2.02247+16
−16		(+193)8 − 20
(+5−17=6)
28.6%
8.0 / 28
0.0%
+35
57.7%
2219
0.75
1281
0 0 = 0 0 0 1 1 1 1 0 0 = 1 0 0 = 0 0 = 0 0 = = 0 0 0 0
–   InmiChess 3.06N2241+15
−15		(+187)8.5 − 17.5
(+6−15=5)
32.7%
8.5 / 26
0.0%
+58
53.6%
1718
0.79
921
0 = = 0 1 1 0 0 0 1 0 1 = 0 0 0 1 0 = 0 1 0 0 = 0 0
–   Nesik 0.7.0 alpha2237+16
−16		(+183)4 − 22
(+1−19=6)
15.4%
4.0 / 26
0.0%
−79
55.8%
1517
0.99
847
0 0 0 0 0 0 0 = 0 0 0 0 0 = = = 0 = 1 0 0 0 = 0 0 0
–   Sunsetter C10.3 64-bit JA2232+16
−16		(+178)4.5 − 23.5
(+2−21=5)
16.1%
4.5 / 28
0.0%
−95
55.4%
2000
0.60
1107
0 1 0 = 0 0 0 = 0 0 0 0 0 0 0 0 = = 1 0 0 0 = 0 0 0 0 0
–   Alarm 0.93.12226+16
−16		(+172)12.5 − 19.5
(+8−15=9)
39.1%
12.5 / 32
0.0%
+97
54.5%
2194
1.56
1195
= 1 1 = 1 1 1 1 0 0 = 0 1 0 = = 0 0 0 = 0 0 0 0 0 1 = 0 = 0 = 0
–   Fortress 1.622216+15
−15		(+162)4 − 22
(+3−21=2)
15.4%
4.0 / 26
0.0%
−147
54.2%
1935
0.82
1048
0 1 0 0 0 0 0 0 0 0 0 0 0 1 0 0 = 0 0 = 0 0 0 0 0 1
–   WJChess 1.642215+16
−16		(+161)3.5 − 24.5
(+3−24=1)
12.5%
3.5 / 28
0.0%
−202
57.5%
2593
1.08
1492
0 0 0 0 0 0 0 0 0 1 0 1 0 0 = 0 0 0 0 0 0 0 0 0 0 1 0 0
–   Gk 0.90 64-bit JA2194+16
−16		(+140)8.5 − 19.5
(+6−17=5)
30.4%
8.5 / 28
0.0%
−7
55.2%
2288
0.60
1262
= 1 0 = = 0 0 0 0 0 1 0 0 = 0 1 0 0 1 0 0 1 0 0 0 1 = 0
–   Alf 1.09 JA2193+17
−17		(+139)9.5 − 22.5
(+6−19=7)
29.7%
9.5 / 32
0.0%
−12
54.7%
2026
0.77
1108
0 0 0 0 = 0 1 = 1 0 1 0 0 0 0 = 0 = 0 = 0 = 0 1 0 = 1 1 0 0 0 0
–   Ghost 0.142189+17
−17		(+135)8.5 − 23.5
(+5−20=7)
26.6%
8.5 / 32
0.0%
−35
53.8%
2112
1.27
1137
1 0 1 = = 0 1 0 1 = 0 = 0 0 0 0 0 0 0 = 1 = 0 0 0 = 0 0 0 0 0 0
–   Wing 2.0a2179+16
−16		(+125)8.5 − 18.5
(+5−15=7)
31.5%
8.5 / 27
0.0%
−6
52.4%
1659
0.91
869
1 0 0 0 1 = 0 = 1 0 = = 0 1 0 0 = = 0 0 1 = 0 0 0 0 0
–   Uragano 3D 0.872174+16
−16		(+120)13.5 − 18.5
(+10−15=7)
42.2%
13.5 / 32
0.0%
+65
55.5%
2168
0.88
1204
= 1 0 = 1 1 0 = 0 0 0 1 = 0 0 1 0 0 0 0 1 0 1 1 0 0 = 1 0 = = 1
–   Parrot 0707222161+17
−17		(+107)10 − 22
(+8−20=4)
31.3%
10.0 / 32
0.0%
−41
54.7%
2200
1.23
1204
0 0 0 0 1 1 0 = = 0 0 0 1 0 1 0 0 0 = = 0 0 1 0 1 0 0 0 1 1 0 0
–   Matheus 2.32144+15
−15		(+90)9.5 − 15.5
(+5−11=9)
38.0%
9.5 / 25
0.0%
+7
57.9%
1312
0.62
759
= 0 = 0 0 0 0 0 = 1 1 0 1 0 = = = = = = 1 0 0 0 1
–   Bodo 0.2b2137+15
−15		(+83)12.5 − 16.5
(+10−14=5)
43.1%
12.5 / 29
0.0%
+31
57.1%
1596
0.65
912
1 0 = 1 0 1 0 0 1 1 0 0 = = 0 = 1 0 0 0 0 0 1 0 1 1 1 0 =
–   Monarch 1.72131+16
−16		(+77)17 − 15
(+14−12=6)
53.1%
17.0 / 32
0.0%
+102
49.6%
2953
1.16
1464
0 0 1 1 = 1 = 0 0 0 0 1 = 1 = 0 1 0 1 = 0 1 = 0 1 1 1 0 1 1 0 1
–   Bestia 0.902122+15
−15		(+68)9 − 18
(+7−16=4)
33.3%
9.0 / 27
0.0%
−61
55.6%
2026
0.89
1127
1 0 = 0 0 1 1 0 = 0 1 0 0 0 0 1 0 1 0 0 0 0 0 = 1 0 =
–   Ax 0.82119+15
−15		(+65)9 − 21
(+7−19=4)
30.0%
9.0 / 30
0.0%
−91
  
1 0 1 0 0 1 0 = 0 0 0 1 0 0 0 0 0 0 0 = 1 = 0 = 0 1 1 0 0 0
–   Gerbil 02 64-bit JA2118+18
−18		(+64)14.5 − 17.5
(+12−15=5)
45.3%
14.5 / 32
0.0%
+28
51.4%
3318
1.02
1705
1 0 = 1 1 0 0 1 0 0 1 1 = = 1 1 0 0 0 0 0 = 0 1 = 0 1 1 0 0 1 0
–   BigLion 2.23x2117+17
−17		(+63)11.5 − 20.5
(+5−14=13)
35.9%
11.5 / 32
0.0%
−25
53.1%
1872
0.60
994
= 1 = 0 = = 0 0 0 = 0 0 1 0 = = 0 0 0 1 = 0 1 0 = = = = 0 = 0 1
–   RDChess 3.232117+16
−16		(+63)13 − 19
(+8−14=10)
40.6%
13.0 / 32
0.0%
−1
56.1%
2155
1.07
1208
0 0 0 0 1 0 0 0 1 = 1 0 1 1 = 0 0 1 = 0 = = = = 0 1 = = = 0 0 1
–   DelphiMax 2.92102+16
−16		(+48)11 − 16
(+10−15=2)
40.7%
11.0 / 27
0.0%
−26
58.8%
2511
0.83
1476
0 = 1 1 0 0 0 1 0 1 1 = 0 0 1 1 1 0 0 1 0 0 0 0 0 0 1
–   Armageddon 2.3082098+17
−17		(+44)15 − 17
(+11−13=8)
46.9%
15.0 / 32
0.0%
+21
56.0%
2275
0.95
1273
1 0 1 1 1 0 0 0 1 0 1 = = = = 1 1 1 = = 0 0 1 0 = 0 0 0 0 1 0 =
–   Requiem 0.532084+15
−15		(+30)14 − 18
(+6−10=16)
43.8%
14.0 / 32
0.2%
−7
58.0%
1108
0.38
643
= 0 1 = = = 0 = 0 1 = = = 0 = 1 0 0 = = = 1 = = 0 1 0 0 0 = = 1
–   Small Potato 0.6.12082+16
−16		(+28)17 − 15
(+14−12=6)
53.1%
17.0 / 32
0.3%
+51
57.4%
2190
0.75
1257
= = 0 1 0 0 = 1 0 0 0 1 1 1 = 0 0 0 1 = 1 0 1 = 0 1 0 1 1 1 1 1
–   Elephant 1.062075+16
−16		(+21)18.5 − 11.5
(+16−9=5)
61.7%
18.5 / 30
2.1%
+107
47.8%
2978
0.93
1422
1 = 1 1 0 0 1 1 1 0 0 = 1 0 1 1 = 0 0 1 1 1 1 = 1 0 0 1 1 =
–   La Dame Blanche 2.0c2070+19
−19		(+16)11.5 − 20.5
(+9−18=5)
35.9%
11.5 / 32
8.4%
−94
54.7%
2058
0.98
1126
1 1 0 0 = 0 1 0 1 = 0 = 0 0 1 1 0 0 0 = 0 0 1 0 0 1 1 0 0 = 0 0
–   Cilian 4.142069+16
−16		(+15)15.5 − 16.5
(+12−13=7)
48.4%
15.5 / 32
7.1%
+5
  
0 0 0 = 1 1 = 1 0 1 0 1 0 1 1 1 = = 1 0 1 1 = 0 1 0 = 0 0 0 = 0
–   Etude 0.1.22063+19
−19		(+9)13 − 19
(+11−17=4)
40.6%
13.0 / 32
20.5%
−63
55.9%
2922
0.64
1633
1 0 0 = = 0 1 0 0 1 0 1 0 0 0 1 1 0 1 0 0 1 0 = 1 = 0 1 1 0 0 0
–   Gullydeckel 2.16pl12062+19
−19		(+8)16.5 − 15.5
(+13−12=7)
51.6%
16.5 / 32
24.8%
+19
55.4%
2549
1.01
1411
0 1 1 1 = 0 = 0 = 0 1 1 0 = 0 0 1 1 1 0 0 1 0 1 1 1 = 0 0 = 1 =
–   JanWillem 1.132062+16
−16		(+8)14.5 − 14.5
(+11−11=7)
50.0%
14.5 / 29
21.7%
+6
54.2%
1965
0.73
1065
= = 0 1 1 0 = = 1 0 1 1 0 = 1 = 0 1 0 1 = 1 0 0 1 0 0 1 0
–   Matant 5.042053+17
−17		(−1)19.5 − 12.5
(+15−8=9)
60.9%
19.5 / 32
53.2%
+74
51.8%
1773
0.87
918
0 = 0 1 = 0 0 0 = 1 1 1 1 = 1 1 1 = = = 1 = 1 = 1 0 1 0 1 0 1 1
–   SSEChessII 2.05 DC2049+17
−17		(−5)17 − 15
(+14−12=6)
53.1%
17.0 / 32
68.3%
+17
54.9%
2607
1.04
1430
1 0 = 1 = 0 0 0 1 0 = 1 0 = = 0 0 = 1 0 1 1 1 1 1 1 0 1 0 0 1 1
–   Faile 1.4.42042+15
−15		(−12)15 − 13
(+11−9=8)
53.6%
15.0 / 28
87.8%
+10
56.6%
2196
0.71
1244
1 1 1 1 = 1 0 0 0 = 0 0 1 = 1 = = = 1 1 0 1 0 0 = 0 = 1
–   Smash 1.0.32036+17
−17		(−18)16 − 16
(+12−12=8)
50.0%
16.0 / 32
95.0%
−18
56.6%
2656
0.43
1503
1 1 0 = 1 1 0 1 1 1 0 = 0 0 0 1 1 = = 1 = 0 = 0 0 0 = 1 0 1 0 =
–   Micro-Max 4.8 PIV DM2028+17
−17		(−26)13.5 − 18.5
(+10−15=7)
42.2%
13.5 / 32
99.3%
−84
76.6%
2413
1.01
1849
1 1 = 0 1 0 = = 1 1 = 0 1 0 0 = = 0 0 1 0 0 0 1 = 0 0 0 0 1 1 0
–   Sharper 0.172022+16
−16		(−32)21 − 7
(+19−5=4)
75.0%
21.0 / 28
99.9%
+166
55.2%
2148
0.83
1186
1 0 0 1 1 = 1 1 = 1 1 = 1 1 1 1 1 1 1 1 0 1 0 0 1 1 1 =
–   Mustang 4.972021+17
−17		(−33)18 − 14
(+13−9=10)
56.3%
18.0 / 32
99.9%
+12
58.4%
1725
0.68
1007
= = = 1 0 1 1 1 0 1 1 = 1 0 = 1 1 0 = 0 = 0 = 0 1 0 = 0 = 1 1 1
–   Rival UCI 1.182021+17
−17		(−33)18.5 − 13.5
(+16−11=5)
57.8%
18.5 / 32
99.9%
+28
56.8%
2609
0.72
1483
0 = = 0 1 1 1 1 1 0 1 1 = 1 0 0 1 0 0 1 0 1 = 1 1 0 1 1 0 0 = 1
–   BibiChess 0.52007+16
−16		(−47)18 − 14
(+13−9=10)
56.3%
18.0 / 32
100.0%
−5
  
1 0 1 1 0 1 = 0 0 = 0 1 = 0 = 1 1 = = = 1 0 1 0 1 = = 1 1 0 = 1
–   IACH 0.56z1995+18
−18		(−59)23 − 9
(+20−6=6)
71.9%
23.0 / 32
100.0%
+105
63.3%
2497
1.33
1580
0 0 0 1 1 = 1 0 1 1 = 1 1 = 1 = 1 1 1 = 0 1 = 1 1 1 1 1 1 1 0 1
–   Heracles 0.6.161993+19
−19		(−61)21 − 11
(+18−8=6)
65.6%
21.0 / 32
100.0%
+55
54.3%
3030
0.69
1645
= = 0 1 1 1 0 1 = = 1 1 = = 1 0 0 1 0 1 1 1 0 1 1 0 0 1 1 1 1 1
–   Clueless 1.41990+18
−18		(−64)17.5 − 14.5
(+15−12=5)
54.7%
17.5 / 32
100.0%
−26
53.4%
2264
1.18
1208
0 = 0 = 1 1 1 0 = 1 1 0 1 1 1 0 1 0 0 = 1 1 1 0 0 0 0 1 1 = 0 1
–   Warrior 1.0.31987+17
−17		(−67)16.5 − 15.5
(+12−11=9)
51.6%
16.5 / 32
100.0%
−57
55.4%
2363
0.73
1308
1 1 1 0 1 0 0 0 = = 0 1 1 = 1 0 0 = 0 = 0 = = = = 1 1 0 0 1 1 1
–   Morphy 3.221974+17
−17		(−80)19 − 13
(+15−9=8)
59.4%
19.0 / 32
100.0%
−13
55.3%
1945
4.03
1076
1 1 1 0 0 0 1 = 1 = = 1 0 1 1 1 = = 1 0 = 1 0 0 1 1 1 1 0 = = 0
–   Eagle 0.7.51973+20
−20		(−81)21.5 − 10.5
(+19−8=5)
67.2%
21.5 / 32
100.0%
+53
50.6%
2602
1.19
1317
1 0 1 0 0 1 1 1 0 1 1 = = 0 1 1 = 1 = 0 = 1 1 1 0 1 0 1 1 1 1 1
–   SnailChess 4.0131973+19
−19		(−81)17.5 − 14.5
(+13−10=9)
54.7%
17.5 / 32
100.0%
−47
78.7%
1811
1.71
1426
1 1 1 0 = 1 0 0 0 = = 1 1 0 1 = = 1 = 1 = = = 1 1 0 1 0 0 0 0 1
–   Celes 0.77c1921+20
−20		(−133)23.5 − 8.5
(+20−5=7)
73.4%
23.5 / 32
100.0%
+41
55.9%
2274
0.70
1271
1 = 1 1 0 1 1 1 1 1 1 1 = 0 0 0 1 = 1 1 = = 1 1 1 1 = 0 = 1 1 1
–   Simontacchi 1.811915+20
−20		(−139)22.5 − 9.5
(+22−9=1)
70.3%
22.5 / 32
100.0%
+38
54.9%
2687
0.75
1475
0 0 1 1 1 0 0 0 1 1 1 1 1 1 1 1 1 1 0 1 0 1 1 1 1 1 0 1 0 1 = 1
–   Cecir 3.51885+19
−19		(−169)22 − 10
(+18−6=8)
68.8%
22.0 / 32
100.0%
−37
49.4%
2129
0.83
1052
0 1 1 1 1 1 0 1 1 = = 1 0 1 1 1 0 1 1 = 1 = 0 1 0 1 = = = = 1 1
–   Soldat 0.25b1873+17
−17		(−181)19.5 − 6.5
(+18−5=3)
75.0%
19.5 / 26
100.0%
+24
56.0%
1695
0.77
950
1 1 1 0 1 0 1 1 = 1 1 1 1 0 0 0 1 = 1 1 1 1 1 1 = 1
–   Grizzly 1.40.1b1837+20
−20		(−217)27.5 − 4.5
(+26−3=3)
85.9%
27.5 / 32
100.0%
+104
50.7%
2082
0.71
1055
1 1 1 1 1 1 1 1 1 1 0 1 = = 1 0 1 1 = 1 1 1 1 1 1 1 1 0 1 1 1 1
–   Elf 1.3.01820+18
−18		(−234)24 − 5
(+22−3=4)
82.8%
24.0 / 29
100.0%
+36
57.1%
2061
0.49
1177
0 1 = 1 1 1 1 1 1 0 1 1 1 1 1 1 = 1 1 = 1 1 1 1 1 1 = 0 1
–   Laurifer 1.01815+18
−18		(−239)25.5 − 6.5
(+23−4=5)
79.7%
25.5 / 32
100.0%
−2
54.6%
1992
0.72
1088
1 1 1 1 1 1 1 1 = 0 1 0 1 0 1 1 1 1 1 = 1 1 = 1 1 1 = 0 1 1 1 =
–   Adamant 1.71790+19
−19		(−264)27.5 − 4.5
(+26−3=3)
85.9%
27.5 / 32
100.0%
+57
58.0%
2360
0.76
1369
1 1 1 1 1 1 1 = 0 1 1 1 = = 1 1 1 1 1 1 1 0 1 1 1 1 1 0 1 1 1 1
–   Mizar 3.01767+20
−20		(−287)25.5 − 6.5
(+21−2=9)
79.7%
25.5 / 32
100.0%
−76
49.0%
1680
0.99
823
0 = 1 = 1 1 1 = = 1 1 = 1 1 1 1 1 1 = 1 1 1 1 = 1 1 = = 1 1 0 1
1877 games in total: 686 wins, 803 losses, 388 draws (20.7%), score: 46.9%
Average opponent: +21.7 (2075.7), average distance to opponent: 107.0

Performance

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

Perf = C − 0.163 [±0.128] * 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