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
Zotron 4.4.6 WB#181  (1669+24
−24
)Quote
Author: Patrick M. King (USA) Released: 2004-04-06Link: RWBC
This engine is stable and runs without issues.
This is the only Zotron version we tested.
OpponentEloDiffResultsScoreLOSPerfPond
hit
Eval
diff
–   Celes 0.77c1921+20
−20
(+252)8 − 24
(+5−21=6)
25.0%
8.0 / 32
0.0%
+60
40.2%
1688
2.21
679
0 1 0 1 0 0 0 0 0 = 0 1 0 1 0 0 0 0 0 = 0 0 1 0 = 0 0 = 0 = 0 =
–   Simontacchi 1.811915+20
−20
(+246)6.5 − 25.5
(+6−25=1)
20.3%
6.5 / 32
0.0%
−25
44.9%
1846
0.63
828
0 0 0 0 0 0 0 0 0 1 0 0 1 0 0 1 0 0 0 1 0 0 1 = 0 0 0 0 0 1 0 0
–   Ranita 2.41907+20
−20
(+238)5 − 27
(+2−24=6)
15.6%
5.0 / 32
0.0%
−35
48.4%
2232
0.92
1080
0 = 1 0 = 0 0 0 0 = 0 0 0 0 0 0 = 0 = = 0 0 0 0 0 0 0 1 0 0 0 0
–   Cecir 3.51885+19
−19
(+216)8 − 24
(+4−20=8)
25.0%
8.0 / 32
0.0%
+33
41.2%
1930
1.00
796
0 = 0 = 0 0 0 = 0 0 = 0 1 0 0 1 1 0 0 = 0 0 0 = 0 0 0 1 = 0 0 =
–   Enigma 1.1.41879+21
−21
(+210)8 − 24
(+6−22=4)
25.0%
8.0 / 32
0.0%
+7
38.9%
1714
1.60
667
0 1 0 0 0 1 = 0 1 0 0 0 = 1 0 0 0 = 1 0 0 = 0 0 0 0 0 0 0 1 0 0
–   Soldat 0.25b1873+17
−17
(+204)7.5 − 24.5
(+5−22=5)
23.4%
7.5 / 32
0.0%
−5
42.7%
1795
1.02
767
0 0 = 0 0 0 1 0 0 0 1 1 0 0 0 = 0 0 0 = 0 0 = 0 0 0 1 0 = 0 1 0
–   Grizzly 1.40.1b1837+20
−20
(+168)5 − 27
(+3−25=4)
15.6%
5.0 / 32
0.0%
−124
40.3%
1757
1.05
708
0 0 0 1 = = 0 0 0 1 0 0 0 0 0 = 0 0 0 0 1 0 0 0 0 0 = 0 0 0 0 0
–   Robin 0.9831834+20
−20
(+165)7 − 25
(+4−22=6)
21.9%
7.0 / 32
0.0%
−52
41.2%
2262
0.71
932
0 0 0 0 = = 0 0 0 = = 0 0 0 0 0 0 0 0 0 1 1 1 1 0 0 0 0 0 = = 0
–   Elf 1.3.01820+18
−18
(+151)6.5 − 25.5
(+4−23=5)
20.3%
6.5 / 32
0.0%
−85
43.8%
2116
1.08
926
0 0 1 0 0 0 0 0 0 0 0 0 0 = 1 0 0 0 0 = = 0 1 = 0 0 0 0 1 0 = 0
–   Laurifer 1.01815+18
−18
(+146)11 − 21
(+7−17=8)
34.4%
11.0 / 32
0.0%
+33
44.8%
1381
1.06
618
0 0 1 0 = = 1 0 0 1 0 0 0 0 0 0 0 0 = 1 0 0 = = = 1 0 1 0 1 = =
–   Kanguruh 1.931806+22
−22
(+137)5.5 − 26.5
(+2−23=7)
17.2%
5.5 / 32
0.0%
−115
43.4%
1493
1.14
648
0 = 0 0 0 0 0 = = 0 = = 0 0 0 1 0 0 0 0 0 0 0 = 1 0 0 = 0 0 0 0
–   Aldebaran 0.7.01794+19
−19
(+125)11 − 21
(+5−15=12)
34.4%
11.0 / 32
0.0%
+23
44.8%
1337
0.45
599
0 = = 0 0 0 0 = = = 0 1 0 0 0 0 = = 1 1 1 0 0 0 = 0 1 = = 0 = =
–   Adamant 1.71790+19
−19
(+121)11.5 − 20.5
(+9−18=5)
35.9%
11.5 / 32
0.0%
+13
44.7%
2323
1.15
1038
1 0 0 0 0 0 1 = 0 = 0 = 0 1 = 0 0 0 0 0 1 0 1 1 = 0 0 1 1 0 1 0
–   SEE 0.6.91781+21
−21
(+112)13 − 19
(+8−14=10)
40.6%
13.0 / 32
0.0%
+50
39.5%
1766
0.80
698
1 = 1 0 0 1 = 1 0 0 1 0 = 0 0 0 = = 0 1 = 0 = 0 0 0 1 0 = 1 = =
–   Mizar 3.01767+20
−20
(+98)9.5 − 22.5
(+5−18=9)
29.7%
9.5 / 32
0.0%
−45
41.2%
2162
1.94
891
1 0 0 1 = 0 0 = 0 0 = 0 = 0 0 = 0 = 0 = 1 0 0 = 1 0 0 1 0 0 0 =
–   Belzebub 0.671744+22
−22
(+75)15 − 17
(+10−12=10)
46.9%
15.0 / 32
0.0%
+54
41.6%
1991
1.39
828
0 = 1 1 0 = 0 1 0 1 = 1 = = 1 0 = 0 1 = 1 0 = 0 = 0 = 0 1 0 0 1
–   ALChess 1.5b1729+22
−22
(+60)13 − 19
(+9−15=8)
40.6%
13.0 / 32
0.0%
−3
44.5%
1802
0.80
802
= 0 0 1 0 1 = = = 1 0 1 0 0 = 1 = 0 0 1 = 0 0 1 1 = 0 0 0 1 0 0
–   IQ23 0031716+23
−23
(+47)17 − 15
(+8−6=18)
53.1%
17.0 / 32
0.1%
+63
36.8%
775
1.20
285
0 0 = 1 = = 1 = = = 1 1 0 = = = = 1 = 1 = = 0 0 1 = 1 = 0 = = =
–   Rainman 0.7.51687+24
−24
(+18)15 − 17
(+11−13=8)
46.9%
15.0 / 32
12.1%
−4
42.1%
1830
0.75
770
= 0 0 1 0 1 1 = 0 0 1 1 1 0 = 0 1 1 1 = 0 = = 0 1 0 0 = = 1 0 0
–   Storm 0.61673+25
−25
(+4)16 − 16
(+12−12=8)
50.0%
16.0 / 32
40.3%
+5
40.2%
1650
0.99
663
0 0 = = 0 = 1 = 0 = 0 0 = 1 1 1 0 1 1 = 1 0 1 1 0 0 1 1 = 0 1 0
–   Needle 0.53.11648+25
−25
(−21)18 − 14
(+13−9=10)
56.3%
18.0 / 32
91.3%
+21
44.1%
1589
0.77
700
1 0 1 = 0 = 1 = 1 0 = 0 0 1 1 = = 0 1 0 0 1 1 1 1 0 = 1 = 1 = =
–   Exacto 0.d1607+26
−26
(−62)21 − 11
(+17−7=8)
65.6%
21.0 / 32
100.0%
+46
38.5%
1067
1.04
411
1 0 1 = 0 0 = 0 0 = = 1 = 1 1 1 1 1 = 0 = 1 = 1 1 1 1 1 1 0 1 1
–   Piranha 0.51574+28
−28
(−95)19 − 13
(+14−8=10)
59.4%
19.0 / 32
100.0%
−29
42.4%
1606
1.12
681
1 = 1 1 0 1 0 0 1 1 1 = 1 = 0 0 = = 0 1 = = = 0 1 = 1 1 1 = 0 1
–   ChessterfieldCL i5a JA1546+29
−29
(−123)24 − 8
(+17−1=14)
75.0%
24.0 / 32
100.0%
+32
38.2%
1731
0.54
662
= = = = 1 1 1 = 1 1 = 1 = = = = 1 1 0 1 = 1 1 1 = 1 = 1 1 = 1 1
–   MiniMardi 1.31503+33
−33
(−166)23 − 9
(+19−5=8)
71.9%
23.0 / 32
100.0%
−7
41.5%
987
0.64
410
1 1 = 0 = = = 1 1 1 = = 1 1 1 = 1 1 1 1 1 1 0 1 1 1 = 0 0 0 1 1

Performance

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

Perf = C − 0.082 [±0.173] * 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