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
Needle 0.53.1 WB#182  (1648+25
−25
)Quote
Author: Mikko Nummelin (Finland) Released: 2004-04-02Link: RWBC
This engine is stable and runs without issues.
This is the only Needle version we tested.
OpponentEloDiffResultsScoreLOSPerfPond
hit
Eval
diff
–   Cecir 3.51885+19
−19
(+237)7.5 − 24.5
(+4−21=7)
23.4%
7.5 / 32
0.0%
+38
48.8%
1966
1.03
960
0 0 = 0 0 0 1 0 = = 0 = 0 0 0 0 1 0 0 0 0 0 0 1 = 0 1 0 = = 0 0
–   Enigma 1.1.41879+21
−21
(+231)6.5 − 25.5
(+3−22=7)
20.3%
6.5 / 32
0.0%
+6
52.0%
1856
1.58
966
= 0 1 0 0 0 = 0 = 0 0 0 = 0 1 0 0 0 0 0 0 0 = = 0 0 1 0 0 = 0 0
–   Soldat 0.25b1873+17
−17
(+225)9.5 − 22.5
(+4−17=11)
29.7%
9.5 / 32
0.0%
+91
53.6%
1565
0.73
839
0 0 0 0 = 0 0 0 = = = = 0 0 0 = 1 = 1 0 0 = 0 0 = = 0 0 1 1 0 =
–   Grizzly 1.40.1b1837+20
−20
(+189)8.5 − 23.5
(+5−20=7)
26.6%
8.5 / 32
0.0%
+15
51.3%
1559
0.75
800
0 = = 0 1 0 1 0 0 0 0 = 0 = 0 0 1 0 = 0 0 1 0 0 = 0 0 1 0 0 = 0
–   Robin 0.9831834+20
−20
(+186)9.5 − 22.5
(+4−17=11)
29.7%
9.5 / 32
0.0%
+52
50.2%
1884
0.63
946
= 0 1 = = 0 0 0 = 0 0 = 0 0 1 0 = 0 0 = 1 = 0 0 = 0 0 0 0 = 1 =
–   Elf 1.3.01820+18
−18
(+172)9.5 − 22.5
(+7−20=5)
29.7%
9.5 / 32
0.0%
+12
54.4%
1975
0.74
1074
0 0 = 0 1 0 0 = 1 0 1 = 0 0 1 0 0 0 0 1 0 = = 0 0 0 1 0 0 1 0 0
–   Laurifer 1.01815+18
−18
(+167)7.5 − 24.5
(+4−21=7)
23.4%
7.5 / 32
0.0%
−34
54.6%
1499
1.14
818
= 0 = 0 0 0 0 0 0 1 0 0 0 0 0 0 0 = 0 1 = 0 0 0 = 1 = 1 = 0 0 0
–   Kanguruh 1.931806+22
−22
(+158)10 − 22
(+5−17=10)
31.3%
10.0 / 32
0.0%
+30
53.8%
1723
1.14
927
0 0 0 = 1 0 = 0 1 0 0 = 0 1 = 1 0 = 0 0 = 0 = 1 0 = = = 0 0 0 0
–   Aldebaran 0.7.01794+19
−19
(+146)8.5 − 23.5
(+4−19=9)
26.6%
8.5 / 32
0.0%
−18
55.5%
1829
0.36
1015
0 0 = = 0 0 0 = 0 0 0 0 0 0 1 = = 1 0 0 = = 0 = = 0 0 0 0 1 0 1
–   Adamant 1.71790+19
−19
(+142)7.5 − 24.5
(+4−21=7)
23.4%
7.5 / 32
0.0%
−57
57.5%
2021
0.73
1162
0 = = 0 = 0 1 = 0 0 = 0 0 0 0 0 1 0 0 0 1 0 0 0 = 0 = 0 0 0 0 1
–   SEE 0.6.91781+21
−21
(+133)9.5 − 22.5
(+6−19=7)
29.7%
9.5 / 32
0.0%
−14
50.1%
2044
0.70
1024
0 = 0 0 = 0 0 0 0 0 0 1 1 1 = 1 0 0 0 1 0 = 0 0 0 0 = 1 = 0 = 0
–   Mizar 3.01767+20
−20
(+119)11.5 − 20.5
(+7−16=9)
35.9%
11.5 / 32
0.0%
+21
47.0%
1875
1.69
881
= 0 0 0 = 0 1 = = 0 0 0 0 0 0 = 0 1 1 1 0 0 1 0 1 = = 0 1 0 = =
–   Belzebub 0.671744+22
−22
(+96)11 − 21
(+6−16=10)
34.4%
11.0 / 32
0.0%
−9
50.4%
1964
1.13
990
1 0 0 1 0 0 = 0 = = 0 = = = 1 1 = 0 0 0 0 1 0 0 0 0 = = 1 0 0 =
–   ALChess 1.5b1729+22
−22
(+81)11 − 21
(+7−17=8)
34.4%
11.0 / 32
0.0%
−29
54.2%
1621
0.86
879
0 = = 1 0 0 1 = 1 = 0 0 0 = 0 1 0 = = 0 0 0 0 0 1 0 1 0 = 0 0 1
–   IQ23 0031716+23
−23
(+68)17 − 15
(+12−10=10)
53.1%
17.0 / 32
0.0%
+89
47.0%
1093
0.85
514
1 1 = = 1 = = 1 1 = 0 0 0 1 1 0 = 1 1 0 0 0 0 1 = 1 0 0 = 1 = =
–   Rainman 0.7.51687+24
−24
(+39)13.5 − 18.5
(+7−12=13)
42.2%
13.5 / 32
0.6%
−9
53.3%
1252
0.65
667
= = = 0 1 0 = = = 0 = = 0 0 0 0 0 0 1 = = 1 1 = 0 = 1 0 1 1 0 =
–   Storm 0.61673+25
−25
(+25)15 − 17
(+9−11=12)
46.9%
15.0 / 32
5.6%
0
52.9%
1321
0.86
699
= 1 = 0 = 0 0 = 0 = = 1 = 1 = 0 = 0 0 1 1 1 = 0 0 1 0 0 = 1 = 1
–   Zotron 4.4.61669+24
−24
(+21)14 − 18
(+9−13=10)
43.8%
14.0 / 32
8.7%
−21
44.1%
1589
0.77
700
0 1 0 = 1 = 0 = 0 1 = 1 1 0 0 = = 1 0 1 1 0 0 0 0 1 = 0 = 0 = =
–   Exacto 0.d1607+26
−26
(−41)16.5 − 15.5
(+10−9=13)
51.6%
16.5 / 32
99.3%
−32
48.3%
698
0.69
337
1 = 1 = = 0 = = = = 0 0 0 0 0 1 0 1 1 = 0 1 1 1 = 0 = = 1 = 1 =
–   Piranha 0.51574+28
−28
(−74)15.5 − 16.5
(+15−16=1)
48.4%
15.5 / 32
100.0%
−88
51.1%
2661
0.87
1361
1 1 0 0 1 0 1 = 0 1 1 0 0 1 0 0 1 0 1 1 1 0 1 0 0 1 0 0 0 1 0 1
–   ChessterfieldCL i5a JA1546+29
−29
(−102)20.5 − 11.5
(+13−4=15)
64.1%
20.5 / 32
100.0%
−16
47.2%
1513
0.66
714
1 = 1 = = = = 0 0 1 = 1 1 1 = = 0 = = 1 = 1 1 1 = 1 0 = 1 = 1 =
–   MiniMardi 1.31503+33
−33
(−145)21 − 11
(+17−7=8)
65.6%
21.0 / 32
100.0%
−33
48.5%
957
0.82
464
1 = 0 1 = 1 0 0 = = 1 1 1 0 1 = 1 1 1 1 1 = 1 1 1 1 1 0 0 0 = =

Performance

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

Perf = C + 0.203 [±0.146] * 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