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

Options
Show each game results
Micro-Max 4.8 PIV DM WB#149  (2028+17
−17		)Quote
Author: Harm Geert Muller (Netherlands) Released: 2008-01-21Link: Homepage
Issues with this engine: Occasional losses on time. Also it never shows evaluation or expected move.
This is the only Micro-Max version we tested.
OpponentEloDiffResultsScoreLOSPerfPond
hit		Eval
diff
–   Wing 2.0a2179+16
−16		(+151)8.5 − 23.5
(+3−18=11)
26.6%
8.5 / 32
0.0%
−6
74.9%
2148
1.36
1609
= 0 0 0 0 0 0 = 0 = = = = = 0 = 0 0 0 = 1 0 1 0 0 1 = 0 0 0 0 =
–   Uragano 3D 0.872174+16
−16		(+146)8.5 − 23.5
(+6−21=5)
26.6%
8.5 / 32
0.0%
−36
74.4%
2986
1.13
2221
= 0 0 0 = 0 0 0 = 0 0 0 0 0 1 = 1 0 0 0 0 0 0 0 1 0 1 1 1 0 0 =
–   Parrot 0707222161+17
−17		(+133)6.5 − 25.5
(+5−24=3)
20.3%
6.5 / 32
0.0%
−118
74.8%
2539
1.58
1899
0 0 0 0 = 0 0 1 0 0 0 0 0 0 = 0 0 0 0 0 0 1 0 1 1 0 = 0 0 0 0 1
–   Matheus 2.32144+15
−15		(+116)9.5 − 22.5
(+5−18=9)
29.7%
9.5 / 32
0.0%
−24
77.9%
2086
0.68
1624
1 0 0 0 0 0 = 0 1 = 0 0 1 = 0 = = 0 = 0 0 0 0 = 0 0 0 0 1 = = 1
–   Bodo 0.2b2137+15
−15		(+109)10.5 − 21.5
(+7−18=7)
32.8%
10.5 / 32
0.0%
−16
74.6%
1864
0.89
1391
0 = 0 0 0 0 0 1 = = = 0 0 0 1 0 1 = 1 0 1 0 0 0 0 1 = = 0 0 0 1
–   Monarch 1.72131+16
−16		(+103)10.5 − 21.5
(+6−17=9)
32.8%
10.5 / 32
0.0%
−15
77.9%
2324
0.78
1810
0 = = 1 0 0 0 0 = = = = = 1 0 0 0 = 0 1 0 1 0 0 0 0 = 1 1 0 0 0
–   Bestia 0.902122+15
−15		(+94)13 − 19
(+10−16=6)
40.6%
13.0 / 32
0.0%
+25
74.9%
2606
1.07
1951
0 1 0 0 0 0 = 0 1 1 = 0 0 1 0 1 1 1 0 0 0 0 1 1 0 = 0 1 = = = 0
–   Ax 0.82119+15
−15		(+91)10 − 22
(+7−19=6)
31.3%
10.0 / 32
0.0%
−51
  
1 1 0 0 1 0 0 0 1 0 0 1 = 0 0 0 1 0 0 0 = 0 1 0 = 0 = = 0 0 = 0
–   Gerbil 02 64-bit JA2118+18
−18		(+90)12.5 − 19.5
(+9−16=7)
39.1%
12.5 / 32
0.0%
+10
75.8%
3249
0.85
2463
= 1 0 = 0 = 1 0 = 0 0 0 0 = 1 0 1 1 0 1 = 1 1 0 0 0 0 1 0 0 0 =
–   BigLion 2.23x2117+17
−17		(+89)12 − 20
(+10−18=4)
37.5%
12.0 / 32
0.0%
−11
74.8%
2691
0.74
2013
0 1 = 0 0 0 = 0 1 = 0 0 0 1 0 0 0 0 0 0 = 0 1 0 1 1 1 0 1 1 0 1
–   RDChess 3.232117+16
−16		(+89)9.5 − 22.5
(+6−19=7)
29.7%
9.5 / 32
0.0%
−61
75.3%
2799
1.43
2107
= 0 = 0 0 0 0 = = 0 1 0 0 0 0 1 0 0 0 0 = 1 0 0 1 0 = 0 1 0 1 =
–   DelphiMax 2.92102+16
−16		(+74)11 − 21
(+8−18=6)
34.4%
11.0 / 32
0.0%
−43
76.8%
2979
1.39
2288
1 0 0 1 1 = = 0 0 = 1 0 0 0 1 0 = 0 = 0 1 0 1 0 = 1 0 0 0 0 0 0
–   Armageddon 2.3082098+17
−17		(+70)14 − 18
(+8−12=12)
43.8%
14.0 / 32
0.0%
+29
77.6%
1926
1.28
1494
0 = = = 0 1 1 1 = 0 0 0 1 1 = 0 1 0 = = = 0 0 = 1 0 = = 0 1 0 =
–   Requiem 0.532084+15
−15		(+56)15 − 17
(+5−7=20)
46.9%
15.0 / 32
0.0%
+39
77.4%
851
0.85
659
1 1 = = 0 = = 1 = = 0 = 1 = = = = 0 = 1 0 = = = 0 = 0 = = = = 0
–   Small Potato 0.6.12082+16
−16		(+54)19.5 − 12.5
(+14−7=11)
60.9%
19.5 / 32
0.0%
+125
78.0%
2134
0.61
1664
1 1 1 1 = 1 0 1 = = 1 1 = 0 1 = 1 0 = = 1 = = 1 0 = = 0 1 0 0 1
–   Elephant 1.062075+16
−16		(+47)17.5 − 14.5
(+13−10=9)
54.7%
17.5 / 32
0.0%
+79
74.9%
2169
1.09
1625
1 = = 0 1 = 1 = 1 1 1 0 0 1 = 0 1 = 1 1 0 0 1 0 = = 1 0 = 0 1 0
–   La Dame Blanche 2.0c2070+19
−19		(+42)14 − 18
(+10−14=8)
43.8%
14.0 / 32
0.0%
0
74.4%
1850
1.59
1377
0 1 0 0 = 1 0 0 = 0 0 1 0 = 1 0 0 = 1 1 = 1 1 = 0 1 = 0 0 0 = 1
–   Cilian 4.142069+16
−16		(+41)18 − 14
(+11−7=14)
56.3%
18.0 / 32
0.0%
+81
  
1 = = 0 = 1 1 1 = = = = 0 1 = 1 1 0 1 1 = = 1 0 = 1 0 0 = 0 = =
–   Etude 0.1.22063+19
−19		(+35)17.5 − 14.5
(+12−9=11)
54.7%
17.5 / 32
0.1%
+68
75.6%
2393
0.84
1809
= 1 1 1 = 0 = = 0 1 1 0 = = = 1 = 1 0 0 1 0 = 0 1 1 0 0 = 1 1 =
–   Gullydeckel 2.16pl12062+19
−19		(+34)14 − 18
(+11−15=6)
43.8%
14.0 / 32
0.2%
−10
76.0%
2731
0.83
2076
1 0 1 1 0 0 = 0 = 0 1 1 = 0 0 0 0 1 0 0 0 1 0 1 = 0 0 = = 1 1 1
–   JanWillem 1.132062+16
−16		(+34)13 − 19
(+9−15=8)
40.6%
13.0 / 32
0.1%
−31
75.1%
2559
1.18
1921
0 1 1 1 = 0 0 1 1 = 0 0 0 = = 1 1 0 0 0 0 0 0 = 1 0 0 = 0 = = 1
–   Marvin 1.3.02054+16
−16		(+26)18.5 − 13.5
(+15−10=7)
57.8%
18.5 / 32
0.7%
+84
76.6%
2413
1.01
1849
0 0 = 1 0 1 = = 0 0 = 1 0 1 1 = = 1 1 0 1 1 1 0 = 1 1 1 1 0 0 1
–   Matant 5.042053+17
−17		(+25)17.5 − 14.5
(+14−11=7)
54.7%
17.5 / 32
1.2%
+57
74.0%
1774
1.19
1312
= 0 1 1 = = 1 1 0 0 0 1 1 1 1 0 = 1 1 1 = 0 0 1 0 0 1 0 1 0 = =
–   SSEChessII 2.05 DC2049+17
−17		(+21)11.5 − 20.5
(+7−16=9)
35.9%
11.5 / 32
2.7%
−75
75.8%
2055
1.15
1558
0 1 0 0 0 0 0 0 1 0 1 = 0 = = = 0 1 1 = 0 1 = 0 1 0 = 0 = 0 0 =
–   Faile 1.4.42042+15
−15		(+14)17.5 − 14.5
(+11−8=13)
54.7%
17.5 / 32
8.7%
+43
78.0%
2116
0.88
1651
= 1 0 = 0 0 1 1 1 1 0 1 0 = = = = = = 0 = 1 1 1 0 = 1 = 1 0 = =
–   Smash 1.0.32036+17
−17		(+8)17.5 − 14.5
(+14−11=7)
54.7%
17.5 / 32
22.5%
+40
74.7%
2499
1.08
1866
1 = 0 1 1 = 1 = 0 1 = 0 1 0 0 = 1 = 1 0 0 0 = 1 1 1 1 0 0 1 0 1
–   Sharper 0.172022+16
−16		(−6)18 − 14
(+15−11=6)
56.3%
18.0 / 32
72.4%
+40
74.8%
3089
1.08
2312
0 0 = 1 0 1 = 0 1 1 0 0 0 = 1 1 = 1 1 0 1 1 0 1 0 1 0 1 1 = 1 =
–   Mustang 4.972021+17
−17		(−7)14.5 − 17.5
(+7−10=15)
45.3%
14.5 / 32
74.7%
−36
75.6%
1243
1.02
940
1 0 1 = = = = 1 1 0 = 0 = 0 0 = = 0 1 = 0 0 = 1 0 0 = = = 1 = =
–   Rival UCI 1.182021+17
−17		(−7)16 − 16
(+12−12=8)
50.0%
16.0 / 32
74.3%
−9
75.2%
2659
1.14
1999
= 0 0 0 1 0 0 1 0 = = 0 1 0 = 1 0 1 1 1 = 0 0 1 1 1 = = 0 1 = 1
–   BibiChess 0.52007+16
−16		(−21)17 − 15
(+14−12=6)
53.1%
17.0 / 32
97.7%
+4
  
1 0 1 0 1 0 1 1 1 1 1 = 0 = 0 1 1 0 1 = = 0 0 0 0 = 1 1 0 = 0 1
–   IACH 0.56z1995+18
−18		(−33)14 − 18
(+11−15=6)
43.8%
14.0 / 32
99.9%
−79
88.2%
2823
0.74
2490
0 = 1 1 = 0 = 0 1 0 1 0 0 0 1 0 0 = 0 1 1 = 0 0 0 0 1 1 = 0 1 1
–   Heracles 0.6.161993+19
−19		(−35)16.5 − 15.5
(+11−10=11)
51.6%
16.5 / 32
99.9%
−22
73.4%
2249
1.46
1650
0 0 = 0 1 1 = = = 0 = 1 = 0 = = = = = 1 0 1 1 0 0 1 1 0 1 1 0 1
–   Clueless 1.41990+18
−18		(−38)22.5 − 9.5
(+21−8=3)
70.3%
22.5 / 32
100.0%
+127
74.9%
3470
1.20
2600
1 0 0 0 1 1 1 0 1 0 = 1 1 1 1 0 1 1 1 1 = 1 1 0 1 = 1 1 1 1 0 1
–   Warrior 1.0.31987+17
−17		(−41)16 − 16
(+10−10=12)
50.0%
16.0 / 32
100.0%
−40
76.1%
1893
0.94
1440
= = 1 1 = 1 1 = 0 = = 1 = = = 0 0 1 1 1 0 0 = 0 1 = 0 0 1 0 = 0
–   Morphy 3.221974+17
−17		(−54)17 − 15
(+12−10=10)
53.1%
17.0 / 32
100.0%
−34
78.1%
1928
3.61
1506
= = = 0 0 = 1 0 = 1 1 = 1 1 = 1 1 0 0 0 = = = 1 0 0 1 0 1 1 0 1
–   Eagle 0.7.51973+20
−20		(−55)18 − 14
(+17−13=2)
56.3%
18.0 / 32
100.0%
−3
73.9%
2900
0.77
2144
1 0 0 1 1 0 0 = = 0 1 1 1 1 0 0 0 1 1 1 1 1 1 0 1 0 1 0 0 0 1 1
–   SnailChess 4.0131973+19
−19		(−55)19.5 − 12.5
(+14−7=11)
60.9%
19.5 / 32
100.0%
+18
  
0 = 1 0 1 = = = = 1 1 0 0 1 = 0 1 1 1 0 = 1 = 1 0 1 = 1 1 = = 1
–   Celes 0.77c1921+20
−20		(−107)22 − 10
(+18−6=8)
68.8%
22.0 / 32
100.0%
+27
74.2%
2021
1.37
1500
1 0 1 1 0 0 = = = 0 1 = 1 1 1 = 1 1 1 1 1 = 1 1 1 1 1 0 = 0 = 1
–   Simontacchi 1.811915+20
−20		(−113)19.5 − 12.5
(+16−9=7)
60.9%
19.5 / 32
100.0%
−33
76.6%
2169
0.90
1661
1 1 0 1 1 = 0 1 1 1 0 0 = 0 1 1 1 = = 0 1 0 1 = 0 1 1 0 1 1 = =
–   Ranita 2.41907+20
−20		(−121)22 − 10
(+18−6=8)
68.8%
22.0 / 32
100.0%
+13
78.5%
2606
0.92
2047
= 1 1 1 0 = 1 0 = 0 1 1 = 1 = 1 1 = 1 = 0 1 1 1 1 1 = 0 0 1 1 1
–   Cecir 3.51885+19
−19		(−143)23.5 − 8.5
(+20−5=7)
73.4%
23.5 / 32
100.0%
+29
74.9%
2168
1.00
1624
1 0 1 1 1 1 = 1 1 0 1 = 1 1 1 1 1 = 1 1 = 1 1 = 0 0 1 = 1 = 0 1
–   Enigma 1.1.41879+21
−21		(−149)19.5 − 12.5
(+16−9=7)
60.9%
19.5 / 32
100.0%
−69
73.2%
2170
1.31
1588
1 1 1 0 0 0 1 = 0 0 = 0 = 0 0 = 1 1 1 1 = 1 1 0 1 1 1 = 1 1 1 =
–   Soldat 0.25b1873+17
−17		(−155)21 − 11
(+16−6=10)
65.6%
21.0 / 32
100.0%
−48
73.3%
2050
1.06
1503
1 1 1 0 1 = 1 = 0 1 = = 1 = 1 0 1 = 1 0 = 1 0 1 1 1 = 0 1 1 = =
–   Grizzly 1.40.1b1837+20
−20		(−191)20 − 12
(+19−11=2)
62.5%
20.0 / 32
100.0%
−88
72.1%
2118
0.94
1528
1 = 1 1 0 1 0 0 0 1 1 1 0 0 0 0 1 1 1 1 0 1 1 1 0 1 0 = 1 1 1 1
–   Robin 0.9831834+20
−20		(−194)23 − 9
(+20−6=6)
71.9%
23.0 / 32
100.0%
−27
72.8%
2528
0.73
1841
1 1 = 1 1 1 = 1 1 1 = 0 0 1 1 0 1 1 1 1 0 1 0 1 = 1 1 = 0 1 = 1
–   Elf 1.3.01820+18
−18		(−208)24.5 − 7.5
(+22−5=5)
76.6%
24.5 / 32
100.0%
+3
75.0%
2534
0.91
1901
= 1 1 0 0 = 1 1 1 1 1 1 0 1 1 0 1 1 1 1 1 = 1 = 1 0 1 = 1 1 1 1
–   Laurifer 1.01815+18
−18		(−213)26 − 6
(+21−1=10)
81.3%
26.0 / 32
100.0%
+5
76.6%
1682
0.95
1289
1 = 1 = = 1 = = 1 1 1 1 1 1 = 1 1 1 1 1 = = 1 = 1 1 1 1 = 1 1 0
–   Aldebaran 0.7.01794+19
−19		(−234)23 − 9
(+16−2=14)
71.9%
23.0 / 32
100.0%
−96
75.2%
1382
0.75
1039
1 1 1 1 1 = = 1 = 1 = = = 1 1 = 1 = = 1 1 = = 0 1 1 = 0 1 = = 1
–   Adamant 1.71790+19
−19		(−238)27 − 5
(+25−3=4)
84.4%
27.0 / 32
100.0%
+54
77.2%
2592
1.06
2002
1 1 1 1 1 = 1 1 1 1 1 1 0 1 1 1 1 1 1 = 1 = = 0 1 1 1 0 1 1 1 1
–   Mizar 3.01767+20
−20		(−261)27 − 5
(+24−2=6)
84.4%
27.0 / 32
100.0%
+12
73.4%
2064
1.20
1514
= 1 1 1 1 0 1 1 1 1 = 1 = = 1 1 = 1 0 1 1 1 1 1 1 1 1 1 1 1 1 =
1600 games in total: 631 wins, 563 losses, 406 draws (25.4%), score: 52.1%
Average opponent: −17.7 (2010.3), average distance to opponent: 89.4

Performance

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

Perf = C + 0.037 [±0.135] * 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