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
Bestia 0.90 WB#129  (2122+15
−15		)Quote
Author: George Lyapko (Ukraine) Released: 2003-02-21Link: Homepage
This engine is stable and runs without issues.
This is the only Bestia version we tested.
OpponentEloDiffResultsScoreLOSPerfPond
hit		Eval
diff
–   Thor's Hammer 2.28 32-bit2417+15
−15		(+295)2 − 21
(+1−20=2)
8.7%
2.0 / 23
0.0%
−101
54.9%
1518
0.99
833
0 0 0 0 0 0 0 0 0 0 1 0 = = 0 0 0 0 0 0 0 0 0
–   Chezzz 1.0.32409+15
−15		(+287)2 − 21
(+1−20=2)
8.7%
2.0 / 23
0.0%
−106
55.2%
1814
0.70
1001
0 0 0 1 0 0 0 0 0 0 0 = 0 0 = 0 0 0 0 0 0 0 0
–   Resp 0.19 64-bit JA Nobook2402+16
−16		(+280)5 − 15
(+3−13=4)
25.0%
5.0 / 20
0.0%
+91
52.6%
1425
0.75
750
0 0 0 0 = 1 0 1 0 0 0 1 0 = 0 = 0 = 0 0
–   Averno 0.812396+15
−15		(+274)3.5 − 22.5
(+3−22=1)
13.5%
3.5 / 26
0.0%
−74
56.8%
1852
0.90
1052
= 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 0 0 0 0 0 0 1 0
–   Scidlet 3.61 64-bit JA2390+15
−15		(+268)3 − 21
(+3−21=0)
12.5%
3.0 / 24
0.0%
−118
60.2%
2244
0.82
1350
0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 0 0 0 0 0 1 0 0 0
–   KnightX 1.922385+15
−15		(+263)6.5 − 22.5
(+4−20=5)
22.4%
6.5 / 29
0.0%
+47
54.9%
1865
0.80
1023
0 0 0 0 0 = = = 0 0 0 0 0 = 0 1 0 1 0 0 0 0 = 0 0 1 0 1 0
–   Eeyore 1.482384+15
−15		(+262)4.5 − 23.5
(+4−23=1)
16.1%
4.5 / 28
0.0%
−58
54.8%
2903
0.75
1591
0 0 0 0 0 = 0 0 0 0 1 0 0 0 0 0 1 1 0 0 0 0 0 0 1 0 0 0
–   Ayito 0.2.9942371+16
−16		(+249)6 − 20
(+4−18=4)
23.1%
6.0 / 26
0.0%
+36
51.9%
2045
0.90
1062
0 0 0 1 0 = 0 1 0 0 0 0 0 = 0 0 = 0 0 1 0 0 0 1 0 =
–   EXchess 5.01 beta 64-bit JA2355+14
−14		(+233)3 − 22
(+1−20=4)
12.0%
3.0 / 25
0.0%
−85
54.3%
2052
0.90
1115
0 0 0 0 = = 0 0 0 0 0 = 0 0 0 = 0 0 0 1 0 0 0 0 0
–   Esc 1.162345+15
−15		(+223)4.5 − 22.5
(+3−21=3)
16.7%
4.5 / 27
0.0%
−62
54.8%
2130
0.90
1167
0 0 0 0 0 0 0 0 0 1 = 0 0 1 0 0 0 = 0 0 1 0 0 = 0 0 0
–   GNU Chess 5.07 64-bit JA2332+22
−22		(+210)8 − 17
(+7−16=2)
32.0%
8.0 / 25
0.0%
+59
53.3%
1571
0.91
838
0 0 1 0 0 = 1 0 1 1 0 0 0 0 0 0 1 0 0 1 0 0 1 = 0
–   Dorky 3.482308+16
−16		(+186)6 − 20
(+4−18=4)
23.1%
6.0 / 26
0.0%
−28
54.7%
1666
0.97
911
0 = 1 1 0 0 1 0 0 0 0 = 1 0 0 0 0 0 = 0 0 0 0 = 0 0
–   CyberPagno 2.1 32MB2295+16
−16		(+173)6.5 − 21.5
(+2−17=9)
23.2%
6.5 / 28
0.0%
−9
54.6%
1664
0.75
909
0 0 0 = 0 0 0 = 0 = = 0 0 0 = = 0 = 0 0 0 = = 1 1 0 0 0
–   Latista (Sinobyl) 1.52289+16
−16		(+167)2.5 − 19.5
(+0−17=5)
11.4%
2.5 / 22
0.0%
−137
52.1%
1818
0.90
947
0 0 = = 0 0 0 0 0 0 0 0 0 0 = 0 0 = 0 = 0 0
–   Madeleine 0.22285+15
−15		(+163)5.5 − 21.5
(+4−20=3)
20.4%
5.5 / 27
0.0%
−86
51.8%
2236
0.90
1159
0 0 = 0 0 1 1 0 0 = 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 = 0
–   Chispa 4.0.32273+14
−14		(+151)8.5 − 14.5
(+4−10=9)
37.0%
8.5 / 23
0.0%
+67
55.1%
1185
0.75
653
= 0 0 = 0 0 1 = 1 = 0 0 = = = 0 = = 0 1 1 0 0
–   Atlas 2.202271+17
−17		(+149)11 − 16
(+10−15=2)
40.7%
11.0 / 27
0.0%
+71
  
0 1 1 0 0 0 = = 0 0 1 0 0 1 1 0 0 1 1 0 0 1 1 0 0 0 1
–   Genesis 2.02247+16
−16		(+125)11 − 15
(+8−12=6)
42.3%
11.0 / 26
0.0%
+69
56.5%
1975
0.65
1115
0 0 0 0 0 0 0 1 0 = 1 1 = = = 0 = 0 = 1 1 0 1 0 1 1
–   InmiChess 3.06N2241+15
−15		(+119)10 − 16
(+9−15=2)
38.5%
10.0 / 26
0.0%
+21
57.3%
1919
0.89
1100
1 0 0 0 0 0 1 0 1 0 0 0 0 0 = 1 0 1 1 1 1 0 0 = 1 0
–   Lime 662241+18
−18		(+119)11.5 − 20.5
(+8−17=7)
35.9%
11.5 / 32
0.0%
+15
54.2%
2343
0.71
1271
1 0 0 0 1 = 0 0 0 0 = = 1 0 0 0 = 0 = 0 1 1 0 0 0 = 1 1 0 1 0 =
–   Nesik 0.7.0 alpha2237+16
−16		(+115)11 − 15
(+8−12=6)
42.3%
11.0 / 26
0.0%
+60
52.0%
1763
0.93
916
0 0 = 0 0 0 0 1 1 0 1 = 1 = 0 = = 0 0 1 = 0 1 1 1 0
–   Sunsetter C10.3 64-bit JA2232+16
−16		(+110)8.5 − 20.5
(+6−18=5)
29.3%
8.5 / 29
0.0%
−48
55.6%
2320
0.79
1291
= 1 0 0 0 0 0 = = 0 = 1 0 0 0 0 0 0 0 = 0 0 1 0 0 1 0 1 1
–   NagaSkaki 5.122232+18
−18		(+110)11.5 − 20.5
(+7−16=9)
35.9%
11.5 / 32
0.0%
+13
55.2%
1974
1.25
1089
= 1 0 = 0 1 1 = 0 0 0 0 1 = 0 0 = 0 0 1 0 = 1 1 = = 0 0 0 0 0 =
–   Alarm 0.93.12226+16
−16		(+104)10.5 − 21.5
(+6−17=9)
32.8%
10.5 / 32
0.0%
−14
57.9%
2317
1.23
1341
= 1 1 0 0 = 0 1 = 1 = 0 0 0 0 0 = 0 0 1 0 0 0 0 0 = 0 = 0 1 = =
–   Fortress 1.622216+15
−15		(+94)8 − 17
(+5−14=6)
32.0%
8.0 / 25
0.0%
−33
56.0%
1500
0.93
840
1 0 = 1 0 = 1 0 0 0 = 0 = 0 0 = 0 0 0 1 0 = 0 1 0
–   WJChess 1.642215+16
−16		(+93)9.5 − 18.5
(+7−16=5)
33.9%
9.5 / 28
0.0%
−29
55.0%
2430
1.04
1336
0 0 0 = 0 0 = 1 0 = 0 0 0 1 1 = = 1 0 0 0 0 1 0 0 1 0 1
–   Gk 0.90 64-bit JA2194+16
−16		(+72)13.5 − 14.5
(+9−10=9)
48.2%
13.5 / 28
0.0%
+58
54.2%
1831
0.82
993
= 1 1 1 = 1 0 1 0 0 0 = 0 1 = 1 1 0 = 0 0 = 1 = = 0 0 =
–   Alf 1.09 JA2193+17
−17		(+71)13.5 − 18.5
(+10−15=7)
42.2%
13.5 / 32
0.0%
+13
56.9%
2176
0.64
1238
1 1 0 = 0 = 0 1 0 1 0 0 0 0 = 1 1 = 0 0 0 1 1 = 0 = = 0 0 1 0 1
–   Clarabit 1.00 64-bit2193+18
−18		(+71)14 − 18
(+10−14=8)
43.8%
14.0 / 32
0.0%
+25
51.5%
2396
0.74
1233
0 0 1 0 0 = 1 1 = 1 = 0 0 0 = = 1 1 1 0 0 1 0 0 0 0 = = 0 1 = 1
–   Ghost 0.142189+17
−17		(+67)11.5 − 20.5
(+9−18=5)
35.9%
11.5 / 32
0.0%
−42
54.6%
2302
1.31
1256
0 = 0 0 = 0 1 = 0 0 0 1 0 1 0 0 1 0 0 0 0 1 0 1 1 0 0 = 1 = 0 1
–   Wing 2.0a2179+16
−16		(+57)11 − 17
(+9−15=4)
39.3%
11.0 / 28
0.0%
−25
53.3%
1904
0.70
1015
0 = = = 0 0 1 1 0 0 1 0 1 0 1 0 0 0 1 0 1 = 1 0 0 0 1 0
–   Uragano 3D 0.872174+16
−16		(+52)12 − 20
(+8−16=8)
37.5%
12.0 / 32
0.0%
−34
53.3%
2434
0.79
1297
1 0 = 0 = 1 1 0 1 1 0 0 0 0 0 0 = 1 = 0 = 1 0 = 0 0 0 = 0 0 1 =
–   Parrot 0707222161+17
−17		(+39)13.5 − 18.5
(+9−14=9)
42.2%
13.5 / 32
0.0%
−16
51.7%
2054
0.98
1062
= = 0 = 0 1 1 1 0 0 = 1 1 0 = 0 1 0 0 0 1 = 1 1 = 0 = 0 = 0 0 0
–   Matheus 2.32144+15
−15		(+22)10 − 14
(+7−11=6)
41.7%
10.0 / 24
1.5%
−38
54.3%
1442
0.62
783
1 1 0 1 0 0 0 1 = = = 0 0 1 1 0 = 0 1 = 0 0 = 0
–   Bodo 0.2b2137+15
−15		(+15)17.5 − 11.5
(+16−10=3)
60.3%
17.5 / 29
7.5%
+98
56.0%
1843
0.65
1032
1 1 1 1 1 1 1 0 0 1 1 1 0 0 1 = 1 0 0 0 1 0 = 1 1 = 0 0 1
–   Monarch 1.72131+16
−16		(+9)18 − 14
(+16−12=4)
56.3%
18.0 / 32
18.6%
+59
48.6%
2733
1.54
1328
0 0 1 1 0 1 1 0 1 = 1 = 1 1 = 0 0 0 0 1 0 0 1 1 1 1 0 = 1 0 1 1
–   Ax 0.82119+15
−15		(−3)14 − 10
(+11−7=6)
58.3%
14.0 / 24
60.5%
+51
  
1 1 1 1 1 = 0 1 1 1 0 0 = = = 0 1 = 0 1 1 0 0 =
–   Gerbil 02 64-bit JA2118+18
−18		(−4)13.5 − 18.5
(+7−12=13)
42.2%
13.5 / 32
62.5%
−53
56.1%
1732
0.72
972
= 0 0 1 0 1 0 = = = = 1 0 0 = = 1 = 1 = = 0 1 1 0 0 0 0 = 0 = =
–   BigLion 2.23x2117+17
−17		(−5)17.5 − 14.5
(+15−12=5)
54.7%
17.5 / 32
67.7%
+31
53.7%
2369
0.74
1272
0 0 1 0 1 0 0 = 1 1 0 1 0 1 0 = 1 1 = 1 0 0 1 1 = 0 0 1 1 = 1 1
–   RDChess 3.232117+16
−16		(−5)16.5 − 15.5
(+12−11=9)
51.6%
16.5 / 32
66.1%
+5
56.7%
2252
0.90
1277
= = 1 = 0 1 = = 1 = 1 0 0 0 0 1 0 = = 0 0 1 0 1 0 1 = 1 1 1 1 0
–   DelphiMax 2.92102+16
−16		(−20)11 − 14
(+8−11=6)
44.0%
11.0 / 25
97.0%
−61
56.7%
1775
1.08
1007
0 = = 1 0 1 0 0 0 = 0 1 1 = 1 1 0 0 = 0 = 0 1 0 1
–   Armageddon 2.3082098+17
−17		(−24)15.5 − 16.5
(+10−11=11)
48.4%
15.5 / 32
98.6%
−34
53.0%
1913
0.90
1014
= 0 = 1 1 0 1 0 1 = 0 = 0 0 = = 1 = 1 1 0 0 = 1 = 0 0 1 1 0 = =
–   Requiem 0.532084+15
−15		(−38)17 − 15
(+8−6=18)
53.1%
17.0 / 32
100.0%
−18
51.1%
1007
0.67
515
= = = 1 = 1 = 0 0 0 0 1 = = 1 1 = 1 = 0 = = 1 = = = 0 = = 1 = =
–   Small Potato 0.6.12082+16
−16		(−40)17 − 15
(+14−12=6)
53.1%
17.0 / 32
100.0%
−18
54.4%
2285
0.91
1243
1 = 0 1 = = 0 1 1 1 = 0 0 = 0 1 0 0 1 1 0 0 1 1 1 1 0 1 0 1 0 =
–   Elephant 1.062075+16
−16		(−47)15.5 − 11.5
(+12−8=7)
57.4%
15.5 / 27
100.0%
+3
51.1%
1802
0.96
921
1 = = 0 = 1 1 0 0 0 1 1 0 = = 1 0 1 = 1 0 1 0 = 1 1 1
–   La Dame Blanche 2.0c2070+19
−19		(−52)18.5 − 13.5
(+17−12=3)
57.8%
18.5 / 32
100.0%
+8
52.6%
2028
1.15
1067
1 0 1 1 0 1 = 1 0 1 1 0 1 0 1 0 1 1 1 0 0 0 1 0 = 1 = 1 1 0 1 0
–   Cilian 4.142069+16
−16		(−53)19 − 13
(+14−8=10)
59.4%
19.0 / 32
100.0%
+11
  
0 = 1 1 0 1 = 0 1 1 = 1 0 1 1 1 = 0 1 1 0 0 1 = = 1 = 1 = 0 = =
–   Etude 0.1.22063+19
−19		(−59)22.5 − 9.5
(+19−6=7)
70.3%
22.5 / 32
100.0%
+90
50.2%
2862
0.84
1437
1 1 1 = 1 = 0 1 0 = 1 0 1 1 = 1 = 1 = 1 1 0 1 0 = 1 0 1 1 1 1 1
–   Gullydeckel 2.16pl12062+19
−19		(−60)18.5 − 13.5
(+17−12=3)
57.8%
18.5 / 32
100.0%
+3
54.4%
3085
0.85
1677
1 1 = 0 0 0 0 1 1 1 1 1 0 1 = 1 0 0 0 = 1 1 1 1 0 0 0 1 1 0 1 1
–   JanWillem 1.132062+16
−16		(−60)15.5 − 13.5
(+13−11=5)
53.4%
15.5 / 29
100.0%
−35
56.8%
2243
0.88
1273
= 0 1 1 0 1 = 1 1 0 1 0 1 0 0 0 = = 0 1 1 1 0 1 0 1 0 = 1
–   Marvin 1.3.02054+16
−16		(−68)18 − 9
(+16−7=4)
66.7%
18.0 / 27
100.0%
+61
55.6%
2026
0.89
1127
0 1 = 1 1 0 0 1 = 1 0 1 1 1 1 0 1 0 1 1 1 1 1 = 0 1 =
–   Matant 5.042053+17
−17		(−69)19.5 − 12.5
(+17−10=5)
60.9%
19.5 / 32
100.0%
+16
50.3%
2027
0.79
1020
= 1 0 0 1 1 0 1 1 1 1 1 1 = = 1 = 0 1 0 1 1 0 1 0 1 0 0 = 0 1 1
–   SSEChessII 2.05 DC2049+17
−17		(−73)22.5 − 9.5
(+19−6=7)
70.3%
22.5 / 32
100.0%
+76
49.0%
2797
1.30
1371
1 0 = 1 0 1 1 = 1 = 1 1 1 = 1 1 1 1 0 1 1 1 0 0 = 1 = 1 1 0 = 1
–   Faile 1.4.42042+15
−15		(−80)18.5 − 9.5
(+15−6=7)
66.1%
18.5 / 28
100.0%
+33
56.8%
1808
0.77
1027
0 = 1 1 = 0 = 1 = 1 0 1 1 = 1 1 0 1 1 = = 1 1 1 1 0 0 1
–   Smash 1.0.32036+17
−17		(−86)23.5 − 8.5
(+19−4=9)
73.4%
23.5 / 32
100.0%
+79
57.4%
1989
0.88
1142
0 1 1 1 = = = = 1 1 1 1 0 = 1 = 1 1 1 1 1 1 1 1 = 0 = 0 1 = 1 1
–   Micro-Max 4.8 PIV DM2028+17
−17		(−94)19 − 13
(+16−10=6)
59.4%
19.0 / 32
100.0%
−25
74.9%
2606
1.07
1951
1 0 1 1 1 1 = 1 0 0 = 1 1 0 1 0 0 0 1 1 1 1 0 0 1 = 1 0 = = = 1
–   Sharper 0.172022+16
−16		(−100)16.5 − 9.5
(+13−6=7)
63.5%
16.5 / 26
100.0%
−6
48.4%
2226
1.09
1078
1 = 0 1 = 1 1 1 0 1 = 0 = 1 0 = 1 0 1 1 = 1 1 0 = 1
–   Mustang 4.972021+17
−17		(−101)21 − 11
(+16−6=10)
65.6%
21.0 / 32
100.0%
+2
52.4%
1598
0.99
837
0 1 1 1 = 1 1 1 1 = = = 1 = 0 = 1 = 0 = 1 = 0 1 0 1 0 1 1 1 = 1
–   Rival UCI 1.182021+17
−17		(−101)21 − 11
(+18−8=6)
65.6%
21.0 / 32
100.0%
+15
53.8%
2518
1.03
1354
0 1 = 1 1 1 1 = = = 0 1 1 0 1 1 1 = 1 0 1 1 1 = 1 1 0 0 1 0 1 0
–   BibiChess 0.52007+16
−16		(−115)20.5 − 11.5
(+15−6=11)
64.1%
20.5 / 32
100.0%
−20
  
= 1 = = = 1 0 = 1 1 = 1 0 = 1 0 = 1 1 1 1 1 = 0 1 0 = 1 0 1 = 1
–   IACH 0.56z1995+18
−18		(−127)22.5 − 9.5
(+20−7=5)
70.3%
22.5 / 32
100.0%
+29
62.8%
2586
1.07
1624
= = 1 1 0 1 0 1 0 1 1 1 0 1 1 1 = 1 0 1 = 1 0 1 1 1 1 1 1 = 0 1
–   Clueless 1.41990+18
−18		(−132)21 − 11
(+19−9=4)
65.6%
21.0 / 32
100.0%
−8
50.6%
2449
1.05
1239
1 = 0 0 = 1 1 0 1 0 1 = 1 1 1 1 0 1 0 1 1 1 1 1 1 0 1 0 1 = 0 1
–   Warrior 1.0.31987+17
−17		(−135)21 − 11
(+17−7=8)
65.6%
21.0 / 32
100.0%
−22
53.8%
2275
0.95
1225
0 1 1 1 = 0 1 0 1 1 1 1 0 0 = 1 0 1 = 1 1 0 = = = 1 1 = 1 = 1 1
–   Morphy 3.221974+17
−17		(−148)23 − 9
(+20−6=6)
71.9%
23.0 / 32
100.0%
+19
52.0%
2398
3.69
1247
1 1 1 = 1 = = = 1 1 1 1 1 1 = 1 1 0 0 1 0 1 0 1 1 1 0 1 1 = 1 0
–   Soldat 0.25b1873+17
−17		(−249)18.5 − 5.5
(+15−2=7)
77.1%
18.5 / 24
100.0%
−60
50.2%
1470
1.11
738
0 1 1 1 = = 1 1 1 1 1 1 1 = 1 = = 1 1 1 1 = 0 =
–   Elf 1.3.01820+18
−18		(−302)21 − 5
(+19−3=4)
80.8%
21.0 / 26
100.0%
−51
57.4%
1666
0.80
956
1 1 = 1 1 = 0 1 1 1 0 1 1 = 1 1 1 1 0 1 = 1 1 1 1 1
–   Laurifer 1.01815+18
−18		(−307)24.5 − 7.5
(+21−4=7)
76.6%
24.5 / 32
100.0%
−107
54.4%
1794
0.76
976
1 1 1 = 1 0 1 1 1 = = 0 1 = 1 1 1 = 1 = 1 0 1 1 1 = 1 0 1 1 1 1
1926 games in total: 697 wins, 829 losses, 400 draws (20.8%), score: 46.6%
Average opponent: +29.3 (2151.3), average distance to opponent: 115.0

Performance

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

Perf = C − 0.043 [±0.092] * 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