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
Rainman 0.7.5 WB#179  (1687+24
−24		)Quote
Author: Johnny Bigert (Sweden) Released: 2003-07-25Link: Homepage
Issues with this engine: Occasionally it fails to start. Also it freezes when the opponent underpromotes.
This is the only Rainman version we tested.
OpponentEloDiffResultsScoreLOSPerfPond
hit		Eval
diff
–   Celes 0.77c1921+20
−20		(+234)4.5 − 27.5
(+2−25=5)
14.1%
4.5 / 32
0.0%
−66
49.0%
1802
1.39
883
= 0 0 0 0 0 0 0 = 1 = 0 0 0 0 0 = 1 0 0 0 0 0 0 0 0 0 0 0 = 0 0
–   Simontacchi 1.811915+20
−20		(+228)4.5 − 27.5
(+4−27=1)
14.1%
4.5 / 32
0.0%
−120
53.2%
2145
0.60
1141
1 0 0 0 = 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1 0 0 0 1 0 0
–   Ranita 2.41907+20
−20		(+220)11.5 − 20.5
(+8−17=7)
35.9%
11.5 / 32
0.0%
+116
54.0%
2037
0.79
1100
0 1 0 0 0 = 0 0 = 0 = 1 0 0 = 1 0 1 0 0 = 0 1 0 0 1 1 = 0 0 1 =
–   Cecir 3.51885+19
−19		(+198)11.5 − 20.5
(+7−16=9)
35.9%
11.5 / 32
0.0%
+98
52.2%
1945
0.94
1016
1 1 0 0 = 0 0 0 0 0 = 1 0 0 = 0 = = 1 1 0 0 0 1 = 0 = 0 = 0 1 =
–   Enigma 1.1.41879+21
−21		(+192)10 − 22
(+8−20=4)
31.3%
10.0 / 32
0.0%
+42
47.4%
1841
1.37
872
0 0 0 1 0 0 1 0 0 = 0 1 = 1 0 0 1 0 1 0 = 0 0 0 0 0 0 1 1 = 0 0
–   Soldat 0.25b1873+17
−17		(+186)8.5 − 23.5
(+4−19=9)
26.6%
8.5 / 32
0.0%
+20
47.7%
1908
0.87
911
= 0 0 = 0 0 1 0 = 0 1 1 0 = = 0 = = 0 0 0 0 0 0 = = 1 0 0 0 0 0
–   Grizzly 1.40.1b1837+20
−20		(+150)10 − 22
(+7−19=6)
31.3%
10.0 / 32
0.0%
+8
47.1%
1634
0.92
769
= 1 0 0 0 0 1 = 0 0 = = = 0 1 0 = 0 0 0 0 1 0 1 1 0 0 0 0 0 1 0
–   Robin 0.9831834+20
−20		(+147)11 − 21
(+8−18=6)
34.4%
11.0 / 32
0.0%
+30
49.4%
1962
0.74
970
1 1 0 0 0 1 0 0 0 0 0 0 1 0 = = 1 = 0 0 = 0 0 0 0 0 1 = 1 1 = 0
–   Elf 1.3.01820+18
−18		(+133)5 − 27
(+2−24=6)
15.6%
5.0 / 32
0.0%
−140
50.7%
2331
0.81
1181
0 0 0 0 0 0 0 = 1 = 0 0 0 0 0 1 = 0 0 = 0 0 0 0 0 0 0 0 = = 0 0
–   Laurifer 1.01815+18
−18		(+128)12.5 − 19.5
(+6−13=13)
39.1%
12.5 / 32
0.0%
+57
51.0%
1199
1.10
611
0 = = 1 1 1 1 0 = = = = 0 0 = 0 = 0 = = = = 0 0 0 1 0 0 = 1 0 0
–   Kanguruh 1.931806+22
−22		(+119)11 − 21
(+7−17=8)
34.4%
11.0 / 32
0.0%
+8
46.3%
1908
1.08
883
= 0 0 0 0 0 0 0 = 1 1 = = = 0 = 0 1 0 0 1 1 1 0 0 = = 0 0 0 0 1
–   Aldebaran 0.7.01794+19
−19		(+107)11.5 − 20.5
(+6−15=11)
35.9%
11.5 / 32
0.0%
+12
51.5%
1544
0.73
795
= = 1 = = = = 0 0 1 = 0 = 1 0 0 0 0 1 0 0 0 = 1 = 0 0 0 0 = 1 0
–   Adamant 1.71790+19
−19		(+103)11 − 21
(+8−18=6)
34.4%
11.0 / 32
0.0%
−15
52.5%
2299
0.98
1206
0 = 0 0 = 0 0 1 0 0 1 1 = 0 0 0 1 0 0 1 1 0 = = 1 0 = 0 0 0 0 1
–   SEE 0.6.91781+21
−21		(+94)13 − 19
(+7−13=12)
40.6%
13.0 / 32
0.0%
+32
48.0%
1816
0.92
872
= = 0 1 0 1 1 = 0 0 0 = = = 0 0 1 0 = 0 0 = = 1 1 0 = 1 = 0 = 0
–   Mizar 3.01767+20
−20		(+80)10.5 − 21.5
(+6−17=9)
32.8%
10.5 / 32
0.0%
−41
45.5%
1840
1.64
837
0 = = 1 = 0 0 0 0 0 0 0 0 0 1 0 0 0 = 1 1 0 = 0 = 0 1 = = 0 = 1
–   Belzebub 0.671744+22
−22		(+57)11.5 − 20.5
(+5−14=13)
35.9%
11.5 / 32
0.0%
−31
53.0%
1558
1.62
825
= 0 0 0 = = = 1 0 0 0 = 1 0 0 = = = = 0 1 0 1 = = = = 0 1 0 0 0
–   ALChess 1.5b1729+22
−22		(+42)12.5 − 19.5
(+7−14=11)
39.1%
12.5 / 32
0.2%
−33
51.7%
1750
0.74
904
= 0 0 1 = 1 = 0 = 0 = 0 1 0 0 0 0 1 1 0 0 1 0 0 = = = 0 = = = 1
–   IQ23 0031716+23
−23		(+29)13 − 19
(+5−11=16)
40.6%
13.0 / 32
2.5%
−27
41.7%
773
1.13
322
= = = = 0 = = 1 0 = = = 0 0 = 0 = 1 0 0 0 0 0 0 1 = 1 = 1 = = =
–   Storm 0.61673+25
−25		(−14)17 − 15
(+13−11=8)
53.1%
17.0 / 32
81.9%
+6
50.4%
1598
0.92
806
1 0 0 0 1 0 1 0 1 1 = 0 1 1 = 0 1 1 1 = 1 0 = 1 0 = = 0 = = 1 0
–   Zotron 4.4.61669+24
−24		(−18)17 − 15
(+13−11=8)
53.1%
17.0 / 32
87.9%
+4
42.1%
1830
0.75
770
= 1 1 0 1 0 0 = 1 1 0 0 0 1 = 1 0 0 0 = 1 = = 1 0 1 1 = = 0 1 1
–   Needle 0.53.11648+25
−25		(−39)18.5 − 13.5
(+12−7=13)
57.8%
18.5 / 32
99.4%
+9
53.3%
1252
0.65
667
= = = 1 0 1 = = = 1 = = 1 1 1 1 1 1 0 = = 0 0 = 1 = 0 1 0 0 1 =
–   Exacto 0.d1607+26
−26		(−80)17.5 − 14.5
(+10−7=15)
54.7%
17.5 / 32
100.0%
−52
46.2%
619
0.92
286
= = 1 0 1 1 0 = 1 0 1 1 = 1 = = 0 1 0 = 0 = = = = = 1 1 = 0 = =
–   Piranha 0.51574+28
−28		(−113)23 − 9
(+20−6=6)
71.9%
23.0 / 32
100.0%
+52
48.3%
1944
0.85
939
1 = 1 0 1 1 = 1 1 1 1 1 0 0 1 = 1 1 0 1 1 = 1 0 = 1 1 1 = 0 1 1
–   ChessterfieldCL i5a JA1546+29
−29		(−141)20.5 − 11.5
(+16−7=9)
64.1%
20.5 / 32
100.0%
−46
43.3%
2007
1.00
869
1 0 0 = 1 0 1 1 1 = = 1 1 = 0 1 1 = 0 = 1 1 = = 1 1 1 1 0 = 0 1
–   MiniMardi 1.31503+33
−33		(−184)25.5 − 6.5
(+22−3=7)
79.7%
25.5 / 32
100.0%
+41
44.8%
989
1.06
443
= 1 1 1 1 1 1 = 1 1 1 1 0 = 1 1 0 1 1 1 1 = 0 1 = = 1 1 1 1 = 1
800 games in total: 213 wins, 369 losses, 218 draws (27.3%), score: 40.3%
Average opponent: +74.3 (1761.3), average distance to opponent: 121.4

Performance

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

Perf = C + 0.012 [±0.202] * 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