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
SEE 0.6.9 WB#174  (1781+21
−21		)Quote
Author: Tor Lattimore (Australia) Released: 2004-02-01Link: Homepage
Issues with this engine: Does not know underpromotion - hangs whenever it's played by the opponent. Also sometimes it hangs for no apparent reason.
This is the only SEE version we tested.
OpponentEloDiffResultsScoreLOSPerfPond
hit		Eval
diff
–   Mustang 4.972021+17
−17		(+240)6 − 26
(+3−23=6)
18.8%
6.0 / 32
0.0%
−5
47.8%
1932
0.92
923
= 0 = 0 1 0 0 0 0 0 0 0 0 0 0 = 0 1 = = 0 0 0 0 0 1 0 0 0 = 0 0
–   BibiChess 0.52007+16
−16		(+226)10 − 22
(+6−18=8)
31.3%
10.0 / 32
0.0%
+91
  
= 1 1 0 0 0 1 0 1 = 0 = = 1 = = 0 0 = 1 0 0 0 0 0 0 0 0 = 0 0 0
–   IACH 0.56z1995+18
−18		(+214)8.5 − 23.5
(+6−21=5)
26.6%
8.5 / 32
0.0%
+30
61.5%
2569
1.04
1579
0 1 0 0 0 0 1 0 = 1 1 0 0 0 = = 0 0 0 0 = 0 0 0 0 0 0 0 1 0 1 =
–   Heracles 0.6.161993+19
−19		(+212)8 − 24
(+4−20=8)
25.0%
8.0 / 32
0.0%
+30
49.0%
2215
1.21
1085
0 = 0 = 1 = 0 0 = = 0 0 0 1 = = 0 0 0 = 0 0 0 1 0 1 0 0 0 0 0 0
–   Clueless 1.41990+18
−18		(+209)8.5 − 23.5
(+6−21=5)
26.6%
8.5 / 32
0.0%
+22
50.4%
2349
1.07
1183
0 1 0 0 = 0 = 0 = 0 0 1 1 1 0 0 0 1 0 0 0 0 = 0 = 0 0 0 0 0 1 0
–   Warrior 1.0.31987+17
−17		(+206)6.5 − 25.5
(+4−23=5)
20.3%
6.5 / 32
0.0%
−32
50.5%
2488
0.82
1256
= 0 0 0 = = 0 0 = 0 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 1 0 0 1 = 0 0
–   Morphy 3.221974+17
−17		(+193)9.5 − 22.5
(+5−18=9)
29.7%
9.5 / 32
0.0%
+50
53.3%
2023
3.91
1079
0 0 0 0 = = = 0 0 0 1 0 = = 0 1 0 0 0 0 = = 0 0 1 0 0 1 = = 0 1
–   Eagle 0.7.51973+20
−20		(+192)9.5 − 22.5
(+6−19=7)
29.7%
9.5 / 32
0.0%
+41
46.5%
2297
0.98
1067
= 0 0 0 1 1 1 0 0 = = 0 0 0 = 1 0 0 0 0 0 0 0 = 0 1 = 1 0 0 0 =
–   SnailChess 4.0131973+19
−19		(+192)10.5 − 21.5
(+8−19=5)
32.8%
10.5 / 32
0.0%
+58
74.6%
1846
2.09
1378
0 0 1 0 1 1 = 0 1 = 0 1 0 0 = 1 0 1 0 0 0 0 0 0 = = 0 0 0 0 1 0
–   Celes 0.77c1921+20
−20		(+140)9.5 − 22.5
(+7−20=5)
29.7%
9.5 / 32
0.0%
−16
46.8%
2452
1.64
1148
0 = = 1 0 1 = 0 1 0 1 0 0 0 1 0 0 0 = 0 0 0 = 1 0 0 0 1 0 0 0 0
–   Simontacchi 1.811915+20
−20		(+134)7.5 − 24.5
(+4−21=7)
23.4%
7.5 / 32
0.0%
−64
53.4%
1932
0.62
1032
0 0 0 0 0 = 0 0 = 1 1 0 0 1 0 0 = 0 = 0 0 0 1 0 0 = = = 0 0 0 0
–   Ranita 2.41907+20
−20		(+126)8 − 24
(+5−21=6)
25.0%
8.0 / 32
0.0%
−66
52.3%
2556
0.90
1336
1 0 1 0 0 0 0 0 0 = 0 0 0 = 0 = 0 0 = 0 0 0 = 0 = 0 0 1 1 0 1 0
–   Cecir 3.51885+19
−19		(+104)15 − 17
(+11−13=8)
46.9%
15.0 / 32
0.0%
+81
46.6%
2340
1.05
1091
0 1 0 0 = 1 = 1 0 0 = 1 0 0 1 1 1 = 1 = 0 0 1 0 = 0 1 1 0 = 0 =
–   Enigma 1.1.41879+21
−21		(+98)12 − 20
(+7−15=10)
37.5%
12.0 / 32
0.0%
+13
45.8%
1709
1.65
782
0 1 0 1 0 0 1 1 = 0 = = = 0 1 0 = = 0 1 0 = 0 0 = = 0 0 1 0 0 =
–   Soldat 0.25b1873+17
−17		(+92)11 − 21
(+6−16=10)
34.4%
11.0 / 32
0.0%
−11
49.0%
1955
1.05
958
1 = 0 = 0 1 0 = 0 1 0 = = = 0 = 0 1 1 0 0 = 0 1 0 = = 0 0 0 0 0
–   Grizzly 1.40.1b1837+20
−20		(+56)13 − 19
(+12−18=2)
40.6%
13.0 / 32
0.0%
−23
47.0%
2108
0.89
991
0 0 0 1 1 1 0 1 1 0 1 0 1 1 0 0 0 1 0 0 0 0 0 0 = 1 1 0 = 0 1 0
–   Robin 0.9831834+20
−20		(+53)12.5 − 19.5
(+8−15=9)
39.1%
12.5 / 32
0.0%
−20
50.0%
1718
0.69
859
1 = 0 0 0 = 0 0 0 1 0 1 1 0 = = 1 1 0 = 1 0 0 0 0 0 = 0 = = 1 =
–   Elf 1.3.01820+18
−18		(+39)9 − 23
(+6−20=6)
28.1%
9.0 / 32
0.1%
−127
52.1%
2669
1.05
1390
0 0 0 1 0 0 = 0 0 0 = 0 0 0 1 0 1 0 = 0 0 0 = = = 1 1 0 0 0 1 0
–   Laurifer 1.01815+18
−18		(+34)10.5 − 21.5
(+8−19=5)
32.8%
10.5 / 32
0.3%
−99
51.9%
1823
1.37
946
1 1 0 0 0 = 0 0 = 0 = 0 0 1 1 = 0 0 0 0 1 1 1 0 = 0 0 1 0 0 0 0
–   Kanguruh 1.931806+22
−22		(+25)16.5 − 15.5
(+11−10=11)
51.6%
16.5 / 32
3.1%
+35
49.7%
1769
1.11
879
0 1 = 1 0 1 0 = = = = 0 0 = = 1 1 1 0 = = 1 1 0 0 0 1 1 = 0 1 =
–   Aldebaran 0.7.01794+19
−19		(+13)12 − 20
(+6−14=12)
37.5%
12.0 / 32
15.0%
−68
51.0%
1466
0.53
747
= 1 0 0 = 1 0 1 0 = = 0 = 1 = 1 0 0 0 = = = = = 0 = 1 0 0 0 0 0
–   Adamant 1.71790+19
−19		(+9)18 − 14
(+14−10=8)
56.3%
18.0 / 32
22.5%
+51
49.4%
2170
0.84
1071
1 0 = 0 0 0 1 0 0 1 = 1 1 1 = 0 1 1 1 = 0 = = 1 1 0 1 1 0 = = 1
–   Mizar 3.01767+20
−20		(−14)13.5 − 18.5
(+10−15=7)
42.2%
13.5 / 32
85.9%
−70
47.0%
2381
1.50
1118
1 = 0 1 1 0 1 = 0 = = 1 1 0 = 0 = 0 0 0 0 0 1 1 1 0 = 0 0 1 0 0
–   Belzebub 0.671744+22
−22		(−37)17 − 15
(+13−11=8)
53.1%
17.0 / 32
99.7%
−12
45.7%
2395
1.30
1095
= = 1 1 = 1 1 0 1 1 = 1 = 1 1 1 0 0 = 0 = = 0 1 0 0 1 0 1 0 0 0
–   ALChess 1.5b1729+22
−22		(−52)19 − 13
(+15−9=8)
59.4%
19.0 / 32
100.0%
+13
48.0%
1839
0.63
882
1 = = 1 = 1 = 0 1 1 0 0 1 0 0 1 = 0 1 0 1 0 1 = 0 1 1 = = 1 1 1
–   IQ23 0031716+23
−23		(−65)19.5 − 12.5
(+12−5=15)
60.9%
19.5 / 32
100.0%
+1
41.7%
932
0.99
389
0 = = 0 0 1 1 1 = = 1 1 1 1 = = = = = 1 1 1 1 1 = = = = 0 = = 0
–   Rainman 0.7.51687+24
−24		(−94)19 − 13
(+13−7=12)
59.4%
19.0 / 32
100.0%
−32
48.0%
1816
0.92
872
= = 1 0 1 0 0 = 1 1 1 = = = 1 1 0 1 = 1 1 = = 0 0 1 = 0 = 1 = 1
–   Storm 0.61673+25
−25		(−108)24 − 8
(+22−6=4)
75.0%
24.0 / 32
100.0%
+93
50.2%
1583
0.93
795
1 1 = 0 1 1 0 1 1 1 1 1 = 0 1 1 1 1 = 1 0 1 0 1 = 1 1 1 1 0 1 1
–   Zotron 4.4.61669+24
−24		(−112)19 − 13
(+14−8=10)
59.4%
19.0 / 32
100.0%
−50
39.5%
1766
0.80
698
0 = 0 1 1 0 = 0 1 1 0 1 = 1 1 1 = = 1 0 = 1 = 1 1 1 0 1 = 0 = =
–   Needle 0.53.11648+25
−25		(−133)22.5 − 9.5
(+19−6=7)
70.3%
22.5 / 32
100.0%
+14
50.1%
2044
0.70
1024
1 = 1 1 = 1 1 1 1 1 1 0 0 0 = 0 1 1 1 0 1 = 1 1 1 1 = 0 = 1 = 1
–   Exacto 0.d1607+26
−26		(−174)26.5 − 5.5
(+23−2=7)
82.8%
26.5 / 32
100.0%
+77
46.1%
1213
1.17
559
1 1 = 1 0 1 1 = 1 1 = 1 = = 0 1 1 = 1 1 1 1 1 1 1 1 1 1 = 1 1 1
–   Piranha 0.51574+28
−28		(−207)26 − 6
(+23−3=6)
81.3%
26.0 / 32
100.0%
+38
47.5%
2164
0.73
1028
1 1 1 1 = 1 1 = 1 0 1 1 1 1 1 1 1 = 1 = 0 = 1 1 1 1 1 = 1 1 1 0
–   ChessterfieldCL i5a JA1546+29
−29		(−235)25.5 − 6.5
(+22−3=7)
79.7%
25.5 / 32
100.0%
−10
42.2%
2196
0.78
926
1 1 = 1 1 0 1 1 1 1 0 = 1 1 1 = = 1 1 1 1 1 1 0 = 1 1 1 1 1 = =
–   MiniMardi 1.31503+33
−33		(−278)27 − 5
(+25−3=4)
84.4%
27.0 / 32
100.0%
+14
44.4%
1080
0.86
479
1 0 1 1 1 = 1 1 1 0 1 1 1 1 1 1 1 1 = 1 0 1 1 1 1 1 1 1 = = 1 1
1088 games in total: 364 wins, 472 losses, 252 draws (23.2%), score: 45.0%
Average opponent: +38.2 (1819.2), average distance to opponent: 126.9

Performance

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

Perf = C + 0.016 [±0.127] * 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