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
Piranha 0.5 UCI#184  (1574+28
−28
)Quote
Author: Martin Villwock (Germany) Released: 2003-04-11Link: Homepage
This engine is stable and runs without issues.
This is the only Piranha version we tested.
OpponentEloDiffResultsScoreLOSPerfPond
hit
Eval
diff
–   Soldat 0.25b1873+17
−17
(+299)4.5 − 27.5
(+3−26=3)
14.1%
4.5 / 32
0.0%
−20
48.2%
1963
0.62
946
0 0 1 0 0 0 = 0 0 0 1 0 0 = 0 0 0 = 0 0 0 0 0 0 0 0 1 0 0 0 0 0
–   Grizzly 1.40.1b1837+20
−20
(+263)4 − 28
(+3−27=2)
12.5%
4.0 / 32
0.0%
−90
49.2%
1998
0.73
983
0 0 0 0 0 0 0 1 = 0 0 0 0 0 0 0 0 0 0 = 0 0 0 1 0 0 0 0 0 1 0 0
–   Robin 0.9831834+20
−20
(+260)5 − 27
(+3−25=4)
15.6%
5.0 / 32
0.0%
−32
48.1%
2304
0.71
1109
0 0 = = 0 1 0 1 0 = 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 = 0
–   Elf 1.3.01820+18
−18
(+246)10.5 − 21.5
(+8−19=5)
32.8%
10.5 / 32
0.0%
+112
46.6%
2078
0.85
968
1 0 0 0 0 0 0 = 0 0 = 0 1 0 = 0 1 0 0 0 0 1 = = 0 1 0 1 0 1 0 1
–   Laurifer 1.01815+18
−18
(+241)8.5 − 23.5
(+8−23=1)
26.6%
8.5 / 32
0.0%
+32
49.4%
1919
0.94
948
0 0 1 0 0 1 1 0 0 0 0 0 0 0 0 0 0 1 0 0 = 0 1 1 0 0 0 0 0 1 0 1
–   Kanguruh 1.931806+22
−22
(+232)8 − 24
(+6−22=4)
25.0%
8.0 / 32
0.0%
+29
50.4%
2588
1.04
1304
0 0 0 0 = 1 0 0 1 = 0 0 1 0 1 1 0 0 0 0 0 0 = 0 0 0 = 0 0 1 0 0
–   Aldebaran 0.7.01794+19
−19
(+220)5.5 − 26.5
(+3−24=5)
17.2%
5.5 / 32
0.0%
−48
49.4%
2360
0.90
1166
0 = 1 = = 0 1 0 0 0 0 0 0 0 0 0 = 0 0 0 0 0 1 0 0 = 0 0 0 0 0 0
–   Adamant 1.71790+19
−19
(+216)4.5 − 27.5
(+3−26=3)
14.1%
4.5 / 32
0.0%
−104
54.7%
2184
0.72
1194
0 0 0 0 1 0 0 0 = 0 0 0 0 0 0 0 1 = 0 0 0 0 0 0 = 0 0 0 1 0 0 0
–   SEE 0.6.91781+21
−21
(+207)6 − 26
(+3−23=6)
18.8%
6.0 / 32
0.0%
−38
47.5%
2164
0.73
1028
0 0 0 0 = 0 0 = 0 1 0 0 0 0 0 0 0 = 0 = 1 = 0 0 0 0 0 = 0 0 0 1
–   Mizar 3.01767+20
−20
(+193)7.5 − 24.5
(+5−22=5)
23.4%
7.5 / 32
0.0%
−15
45.9%
2186
1.29
1004
0 0 0 = = 0 1 0 0 = 0 0 0 = 0 1 0 0 1 0 0 0 0 = 0 0 1 0 0 0 1 0
–   Belzebub 0.671744+22
−22
(+170)7.5 − 24.5
(+6−23=3)
23.4%
7.5 / 32
0.0%
−52
44.6%
2072
1.83
924
0 0 0 0 0 = 0 0 1 0 0 = 0 1 0 1 = 1 0 0 0 1 0 0 0 0 0 0 0 0 0 1
–   ALChess 1.5b1729+22
−22
(+155)15 − 17
(+12−14=6)
46.9%
15.0 / 32
0.0%
+133
51.9%
2092
0.76
1086
0 1 1 0 1 1 = 0 = 1 = 1 0 1 0 = 0 1 0 0 0 0 1 0 0 1 0 1 0 = = 1
–   IQ23 0031716+23
−23
(+142)9 − 23
(+8−22=2)
28.1%
9.0 / 32
0.0%
−44
44.3%
1811
0.90
802
= 0 1 0 0 1 0 0 0 0 1 0 0 0 1 0 1 0 0 0 0 0 0 0 1 1 0 0 0 = 0 1
–   Rainman 0.7.51687+24
−24
(+113)9 − 23
(+6−20=6)
28.1%
9.0 / 32
0.0%
−52
48.3%
1944
0.85
939
0 = 0 1 0 0 = 0 0 0 0 0 1 1 0 = 0 0 1 0 0 = 0 1 = 0 0 0 = 1 0 0
–   Storm 0.61673+25
−25
(+99)9.5 − 22.5
(+6−19=7)
29.7%
9.5 / 32
0.0%
−51
47.3%
1620
1.02
766
0 1 0 = = 0 = 0 1 0 1 0 0 0 1 0 0 0 1 1 0 0 0 0 0 0 0 = 0 = = =
–   Zotron 4.4.61669+24
−24
(+95)13 − 19
(+8−14=10)
40.6%
13.0 / 32
0.0%
+29
42.4%
1606
1.12
681
0 = 0 0 1 0 1 1 0 0 0 = 0 = 1 1 = = 1 0 = = = 1 0 = 0 0 0 = 1 0
–   Needle 0.53.11648+25
−25
(+74)16.5 − 15.5
(+16−15=1)
51.6%
16.5 / 32
0.0%
+88
51.1%
2661
0.87
1361
0 0 1 1 0 1 0 = 1 0 0 1 1 0 1 1 0 1 0 0 0 1 0 1 1 0 1 1 1 0 1 0
–   Exacto 0.d1607+26
−26
(+33)15.5 − 16.5
(+13−14=5)
48.4%
15.5 / 32
3.0%
+19
45.2%
1385
1.30
626
= 0 0 = 0 1 1 1 0 1 0 1 1 0 0 0 1 = 0 1 1 = 0 1 0 1 0 = 0 1 0 1
–   ChessterfieldCL i5a JA1546+29
−29
(−28)18 − 14
(+13−9=10)
56.3%
18.0 / 32
93.8%
+11
39.3%
2022
1.52
795
0 = = 1 1 0 0 1 1 = 1 1 0 1 1 = 0 1 0 1 = 0 1 = 1 = 0 1 0 = = =
–   MiniMardi 1.31503+33
−33
(−71)19.5 − 12.5
(+17−10=5)
60.9%
19.5 / 32
100.0%
+12
45.6%
1174
1.15
535
1 = 1 1 1 0 1 1 0 1 1 1 0 1 0 1 1 1 = 0 0 1 = 0 0 = 0 1 = 1 1 0

Performance

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

Perf = C − 0.123 [±0.284] * 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