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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Colossus 2007c UCI (2694+19
−19		)Quote
Author: Martin Bryant (United Kingdom) Released: 2007-07-27Link: Homepage
This engine is stable and runs without issues.
This is one of the 2 Colossus versions we tested: Compare them!
OpponentEloDiffResultsScoreLOSPerfPond
hit		Eval
diff
–   Fruit 2.3 32-bit2888+23
−23		(+194)4.5 − 19.5
(+3−18=3)
18.8%
4.5 / 24
0.0%
−68
58.9%
1727
0.61
1018
0 0 1 0 0 0 0 0 0 0 1 0 0 0 0 = 0 1 0 0 = 0 = 0
–   Spike 1.2 Turin2842+23
−23		(+148)10 − 15
(+6−11=8)
40.0%
10.0 / 25
0.0%
+79
61.4%
1806
0.62
1109
0 0 = 0 0 = 1 = 0 = 0 = 0 1 = 0 1 0 = 1 = 0 1 0 1
–   Glaurung 2.0.1 64-bit2838+23
−23		(+144)5.5 − 18.5
(+3−16=5)
22.9%
5.5 / 24
0.0%
−62
58.3%
1670
1.03
974
1 0 = 0 0 1 0 0 0 0 0 0 = 0 = 0 = 0 0 = 0 0 0 1
–   Naum 2.0 64-bit2793+21
−21		(+99)11 − 19
(+5−13=12)
36.7%
11.0 / 30
0.0%
+14
59.0%
1497
0.65
883
= = 0 1 0 0 0 0 = = = 0 0 1 0 = = 0 = 0 = 0 = 0 1 1 = 0 1 =
–   Bright 0.2c2786+23
−23		(+92)11 − 17
(+8−14=6)
39.3%
11.0 / 28
0.0%
+10
57.1%
2429
0.72
1388
= 0 = 0 0 0 0 0 0 0 1 0 0 0 1 1 0 1 1 1 0 1 = = 0 = 1 =
–   Naum 2.0 32-bit2777+26
−26		(+83)7.5 − 15.5
(+4−12=7)
32.6%
7.5 / 23
0.0%
−32
50.8%
1527
0.74
776
0 0 = 0 0 0 = 0 = 0 0 1 0 0 0 = 0 = 1 1 = 1 =
–   Glaurung 1.2.1 64-bit2770+24
−24		(+76)10 − 16
(+8−14=4)
38.5%
10.0 / 26
0.0%
−13
59.3%
2317
0.64
1374
0 0 0 1 0 1 0 0 = = 0 1 1 1 0 1 0 0 = = 1 0 1 0 0 0
–   Alaric 7072768+22
−22		(+74)10.5 − 15.5
(+7−12=7)
40.4%
10.5 / 26
0.0%
+7
56.5%
2046
0.49
1156
1 = 0 0 1 0 0 0 = = 0 1 0 0 = 0 1 0 0 = 1 = = 1 0 1
–   Scorpio 2.0 32-bit2754+23
−23		(+60)13 − 16
(+7−10=12)
44.8%
13.0 / 29
0.0%
+28
60.5%
1607
0.94
973
1 1 = = 0 = 1 = 1 0 = = = = 0 = 0 0 1 = 1 = 1 = 0 0 0 0 0
–   Scorpio 1.912739+26
−26		(+45)8 − 17
(+4−13=8)
32.0%
8.0 / 25
0.1%
−75
58.8%
1734
0.79
1020
= 1 = = 0 0 1 0 0 0 = 1 = = 0 0 0 = 1 0 0 = 0 0 0
–   E.T. Chess 13.01.082733+21
−21		(+39)14.5 − 12.5
(+12−10=5)
53.7%
14.5 / 27
0.1%
+66
58.9%
2200
0.62
1296
1 1 = 1 0 0 1 1 1 0 0 = 0 0 1 0 1 1 0 1 1 = = 1 0 = 0
–   Movei 00.8.438 (10-10-10)2722+21
−21		(+28)14.5 − 12.5
(+10−8=9)
53.7%
14.5 / 27
1.4%
+50
58.0%
1763
0.53
1023
1 0 1 = = = 1 0 = 0 = 1 0 = 0 = = = 1 0 1 0 1 0 1 1 1
–   Delfi 5.22718+21
−21		(+24)9 − 17
(+6−14=6)
34.6%
9.0 / 26
2.9%
−85
60.0%
1983
0.55
1189
0 0 0 = 0 0 0 0 0 1 0 1 = 0 0 1 0 0 = 0 1 1 = = 1 =
–   WildCat 72718+19
−19		(+24)16 − 12
(+11−7=10)
57.1%
16.0 / 28
2.3%
+71
56.3%
1890
0.55
1065
1 1 0 1 1 0 0 1 = = 1 = 0 = 1 0 1 = 1 = = 1 0 = = = 1 0
–   Zappa 1.1 64-bit2717+19
−19		(+23)15.5 − 13.5
(+9−7=13)
53.4%
15.5 / 29
2.4%
+44
55.9%
1853
0.66
1035
= 1 1 = 1 1 0 0 1 1 = = 0 = 0 = 0 = 0 = = = 0 = 1 = 1 1 =
–   Slow Chess Blitz WV2.12716+19
−19		(+22)15 − 13
(+10−8=10)
53.6%
15.0 / 28
3.7%
+44
55.6%
1734
0.52
964
= 1 1 = 1 = 0 0 1 0 0 = 0 1 1 = 1 1 = 0 0 = 0 = = 1 1 =
–   Frenzee 3.0 64-bit2711+19
−19		(+17)14 − 14
(+6−6=16)
50.0%
14.0 / 28
7.9%
+17
57.4%
1161
0.83
666
= 0 = = 1 = 0 = 0 0 = 1 1 = = = = = 1 0 = = 1 = = = 1 0
–   Pharaon 3.5.12704+19
−19		(+10)8.5 − 21.5
(+3−16=11)
28.3%
8.5 / 30
19.5%
−130
57.9%
1959
0.49
1135
0 = 1 0 1 = = 0 0 0 0 0 = 0 0 0 = 0 0 = = 0 0 = 1 0 = = = 0
–   List 5.122699+18
−18		(+5)14 − 13
(+6−5=16)
51.9%
14.0 / 27
34.1%
+12
57.5%
1147
0.56
660
= = 1 = = 0 1 = = 0 1 = 0 = 1 = 1 = = = 0 1 = = = 0 =
–   SOS 5.12697+18
−18		(+3)14.5 − 15.5
(+9−10=11)
48.3%
14.5 / 30
40.4%
−10
59.0%
1711
0.65
1009
1 = 1 1 = 0 0 0 = 0 1 0 1 = 0 = 0 = = = 1 0 1 = 1 = = 0 1 0
–   Ruffian 1.0.52687+17
−17		(−7)14 − 10
(+10−6=8)
58.3%
14.0 / 24
70.8%
+46
59.2%
1621
0.43
960
= 1 = 1 1 1 1 0 0 0 1 = 1 0 = = 1 1 0 0 1 = = =
–   Petir 4.392682+18
−18		(−12)15 − 11
(+11−7=8)
57.7%
15.0 / 26
84.6%
+40
60.7%
1830
0.58
1110
1 0 = 1 = 1 1 = 1 1 = 1 = = = 1 0 0 0 = 1 0 0 0 1 1
–   Pseudo 0.7c2680+18
−18		(−14)17.5 − 11.5
(+11−5=13)
60.3%
17.5 / 29
87.9%
+48
59.4%
1700
0.52
1010
= = = 1 = 0 1 = = = 0 = 1 0 1 1 = = 1 1 1 = = 0 1 0 = 1 1
–   Aristarch 4.502671+18
−18		(−23)18 − 14
(+12−8=12)
56.3%
18.0 / 32
97.5%
+17
59.9%
1630
0.77
977
= = 0 0 1 = 1 = 1 = = 0 = 1 = = 1 1 0 0 1 = 0 1 = 1 0 1 1 0 = 1
–   Petir 4.9999992670+19
−19		(−24)10.5 − 17.5
(+4−11=13)
37.5%
10.5 / 28
97.7%
−100
63.3%
1418
0.55
898
= = = = 0 1 0 0 = 0 = = = = = = = 0 = 0 0 1 0 1 1 0 0 0
–   Hamsters 0.62669+18
−18		(−25)17 − 11
(+13−7=8)
60.7%
17.0 / 28
97.9%
+47
57.2%
2131
0.52
1218
= 1 0 1 1 0 1 1 = 0 1 = 1 = 0 0 0 1 1 1 1 0 = = 1 = 1 =
–   Booot 4.13.12668+18
−18		(−26)15 − 10
(+12−7=6)
60.0%
15.0 / 25
98.6%
+43
57.9%
2053
0.61
1188
0 1 = 1 1 1 = 1 = 1 1 0 1 1 = 0 0 = 0 = 1 0 1 1 0
–   BugChess2 1.5.22661+18
−18		(−33)19 − 7
(+15−3=8)
73.1%
19.0 / 26
99.7%
+126
58.3%
1659
0.65
968
= 1 0 0 = 1 = 1 1 = 1 = 0 1 1 1 1 1 = 1 1 1 1 = 1 =
–   Jonny 2.832652+17
−17		(−42)13.5 − 14.5
(+9−10=9)
48.2%
13.5 / 28
100.0%
−53
52.9%
1912
0.60
1012
1 1 0 0 1 = 1 1 = 0 0 0 = 1 = = 1 1 0 = 0 0 = = 1 0 = 0
–   Crafty 21.5 64-bit PS2652+17
−17		(−42)12.5 − 13.5
(+7−8=11)
48.1%
12.5 / 26
100.0%
−57
56.4%
1685
0.70
951
0 1 = 0 1 = 1 = = 0 1 0 = 1 0 = 0 1 1 = 0 = = = 0 =
–   The Baron 1.8.12651+18
−18		(−43)14 − 11
(+10−7=8)
56.0%
14.0 / 25
100.0%
−2
50.1%
1891
0.93
948
= = 0 = 1 0 1 0 = 1 1 0 = = = 1 1 1 1 0 1 0 0 = 1
–   Anaconda 2.0.12644+17
−17		(−50)9 − 13
(+4−8=10)
40.9%
9.0 / 22
100.0%
−108
60.4%
991
0.64
599
= = 1 0 = 0 0 0 0 0 = 1 = 1 = = 0 = = = 0 1
–   Movei 00.8.4032643+22
−22		(−51)15.5 − 8.5
(+12−5=7)
64.6%
15.5 / 24
100.0%
+44
54.5%
1775
0.59
968
1 0 0 1 1 1 1 = = 1 0 = = 1 1 1 0 = 1 1 = = 1 0
–   Fritz 5.322643+17
−17		(−51)12 − 12
(+9−9=6)
50.0%
12.0 / 24
100.0%
−51
64.4%
1705
0.68
1098
= 0 1 0 1 1 1 1 = 1 = 1 0 0 0 0 0 0 = 1 0 1 = =
–   Ktulu 4.22634+17
−17		(−60)16.5 − 9.5
(+12−5=9)
63.5%
16.5 / 26
100.0%
+30
58.8%
1794
0.71
1055
1 0 = 1 1 = 1 1 0 = = 1 = 1 0 1 = 1 = 1 = 1 1 0 = 0
–   Thinker 4.7a2634+17
−17		(−60)16 − 11
(+10−5=12)
59.3%
16.0 / 27
100.0%
0
56.6%
1558
0.55
882
0 = 1 0 = 0 = 1 = 1 1 0 1 = 1 = 1 1 = = = = = 1 0 1 =
–   SmarThink 0.17a2633+16
−16		(−61)15.5 − 8.5
(+11−4=9)
64.6%
15.5 / 24
100.0%
+32
59.8%
1382
0.55
826
= 1 = = = = = 1 = 1 1 1 0 1 0 1 1 1 1 1 = 0 0 =
–   Ufim 8.022628+18
−18		(−66)13 − 14
(+9−10=8)
48.1%
13.0 / 27
100.0%
−81
56.7%
2028
0.67
1150
= 0 0 = 0 0 1 = 1 = 0 0 1 0 0 1 0 1 1 = 0 1 1 = = = 1
–   Fritz 6 Light2627+19
−19		(−67)15.5 − 10.5
(+11−6=9)
59.6%
15.5 / 26
100.0%
0
62.8%
1544
0.52
970
0 = 0 0 1 0 1 1 = = = 1 1 1 = = = 1 1 1 = 0 1 = 1 0
–   Trace 1.37a2622+17
−17		(−72)14 − 11
(+10−7=8)
56.0%
14.0 / 25
100.0%
−34
57.6%
1327
0.64
765
0 1 1 1 = 1 = 1 0 0 = = 0 0 1 1 = = 1 0 = 0 1 1 =
–   AnMon 5.602621+18
−18		(−73)17 − 9
(+16−8=2)
65.4%
17.0 / 26
100.0%
+52
52.8%
2177
0.61
1150
0 = 1 1 0 0 1 0 1 1 1 1 1 1 1 1 0 1 1 0 0 1 1 = 0 1
–   Little Goliath 3.12 Evolution (TB Off)2614+17
−17		(−80)18 − 10
(+14−6=8)
64.3%
18.0 / 28
100.0%
+20
54.4%
2204
0.77
1200
= = = 1 0 1 1 = = = 0 1 1 1 0 0 1 1 = 1 1 1 1 0 1 = 1 0
–   Little Goliath 3.12 Evolution (TB On)2607+19
−19		(−87)15 − 13
(+11−9=8)
53.6%
15.0 / 28
100.0%
−66
53.9%
2169
0.71
1169
1 1 = 1 0 = 1 0 = 1 0 1 0 1 = 0 = 1 0 1 = 0 = 1 0 = 0 1
1144 games in total: 380 wins, 385 losses, 379 draws (33.1%), score: 49.8%
Average opponent: +3.0 (2697), average distance to opponent: 51.9

Performance

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

Perf = C + 0.004 [±0.263] * 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