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
Colossus 2007d UCI#17  (2707+20
−20		)Quote
Author: Martin Bryant (United Kingdom) Released: 2007-09-15Link: 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		(+181)7 − 22
(+1−16=12)
24.1%
7.0 / 29
0.0%
+17
58.0%
1745
0.52
1012
0 0 = = 0 = 0 0 0 0 0 = = 0 0 0 0 = 0 = = = = 0 0 = 1 = 0
–   Spike 1.2 Turin2842+23
−23		(+135)6.5 − 19.5
(+3−16=7)
25.0%
6.5 / 26
0.0%
−44
54.7%
2214
0.94
1210
= 0 0 0 = 0 = = = 0 0 0 0 0 1 0 0 0 0 0 = 0 0 = 1 1
–   Glaurung 2.0.1 64-bit2838+23
−23		(+131)11 − 17
(+6−12=10)
39.3%
11.0 / 28
0.0%
+59
61.1%
1569
0.70
958
= 1 = = 0 0 0 0 0 1 = 1 = = 0 0 1 0 1 = 1 = = 0 0 0 = 0
–   Frenzee Feb08 64-bit2810+24
−24		(+103)10 − 22
(+5−17=10)
31.3%
10.0 / 32
0.0%
−25
55.9%
2623
1.07
1465
0 = 0 1 0 0 1 0 = = 0 1 0 = 1 0 1 0 = = 0 = 0 = 0 0 0 0 = 0 = 0
–   Delfi 5.42801+24
−24		(+94)14 − 18
(+6−10=16)
43.8%
14.0 / 32
0.0%
+56
58.3%
1373
0.47
800
1 1 0 1 0 0 = 1 0 = = = 0 = = = 0 = 0 = 0 1 = 1 = 0 0 = = = = =
–   Naum 2.0 64-bit2793+21
−21		(+86)9 − 18
(+5−14=8)
33.3%
9.0 / 27
0.0%
−28
57.1%
1796
0.77
1025
= 0 = 1 0 = 0 1 1 0 0 0 = 1 = = 0 1 0 0 0 = = 0 0 0 0
–   Bright 0.2c2786+23
−23		(+79)6.5 − 19.5
(+3−16=7)
25.0%
6.5 / 26
0.0%
−98
56.2%
2334
0.65
1311
0 1 0 1 0 0 = = 0 0 0 = 0 0 0 0 0 = 0 0 = 0 = = 1 0
–   Naum 2.0 32-bit2777+26
−26		(+70)12 − 13
(+9−10=6)
48.0%
12.0 / 25
0.0%
+56
54.6%
2060
0.72
1124
0 1 1 0 0 = 1 0 1 0 1 0 1 = 0 1 1 1 = = 0 0 0 = =
–   Alaric 7072768+22
−22		(+61)5.5 − 19.5
(+2−16=7)
22.0%
5.5 / 25
0.0%
−140
58.0%
2319
0.49
1344
= 0 0 0 = 0 0 1 0 0 0 0 = = 0 0 0 = = 0 0 0 = 0 1
–   Scorpio 2.0 32-bit2754+23
−23		(+47)12 − 12
(+8−8=8)
50.0%
12.0 / 24
0.0%
+50
56.7%
1650
0.73
936
0 0 0 1 0 1 = 0 1 0 = = 0 = 1 = 1 = 1 = = 1 0 1
–   E.T. Chess 13.01.082733+21
−21		(+26)15 − 11
(+12−8=6)
57.7%
15.0 / 26
2.7%
+83
59.7%
1903
0.51
1137
1 1 1 = 0 0 0 1 0 1 = = 0 1 0 1 1 = 0 0 1 = 1 = 1 1
–   WildCat 82730+22
−22		(+23)15 − 17
(+10−12=10)
46.9%
15.0 / 32
4.4%
+1
59.1%
2232
0.53
1319
0 = 1 1 = 0 0 = 1 1 1 1 1 = = 1 0 = 0 0 0 0 1 0 = = 0 1 0 = = 0
–   Alfil 8.1.1 Optimized2723+21
−21		(+16)9.5 − 17.5
(+4−12=11)
35.2%
9.5 / 27
11.1%
−79
55.6%
1564
0.53
870
1 = 0 0 1 = 0 = 0 0 = = 1 0 0 = 0 = = = 0 0 0 = 0 1 =
–   Movei 00.8.438 (10-10-10)2722+21
−21		(+15)11.5 − 13.5
(+5−7=13)
46.0%
11.5 / 25
12.8%
−10
53.0%
1473
0.58
780
= 1 = 0 = = 0 = = 0 1 = = 0 1 = 0 = 0 0 = 1 1 = =
–   Pro Deo 1.62719+22
−22		(+12)13 − 16
(+10−13=6)
44.8%
13.0 / 29
19.4%
−25
55.7%
2187
0.59
1218
0 1 0 0 = 1 0 = 1 1 0 1 0 1 0 = 0 0 1 1 0 = 0 1 = 0 1 0 =
–   Delfi 5.22718+21
−21		(+11)14 − 13
(+10−9=8)
51.9%
14.0 / 27
19.7%
+27
60.4%
2134
0.63
1290
1 0 0 0 1 1 0 = = 0 = 1 1 = = = 0 0 1 = 0 0 1 1 1 = 1
–   WildCat 72718+19
−19		(+11)11 − 18
(+5−12=12)
37.9%
11.0 / 29
19.0%
−68
58.6%
1718
0.59
1006
= 1 = 1 = 0 0 1 = = = 0 0 0 = 0 1 = = 0 = 0 0 0 0 1 0 = =
–   Zappa 1.1 64-bit2717+19
−19		(+10)12 − 12
(+9−9=6)
50.0%
12.0 / 24
20.0%
+4
57.4%
2011
0.64
1155
0 = 0 1 0 1 1 0 = 1 1 0 = 0 0 = 1 0 1 1 = 0 = 1
–   Slow Chess Blitz WV2.12716+19
−19		(+9)10.5 − 13.5
(+5−8=11)
43.8%
10.5 / 24
24.7%
−30
61.3%
1414
0.60
867
= 0 = = 0 = 1 0 = 0 = 0 = = 0 1 = 0 = 1 = 1 0 1
–   Frenzee 3.0 64-bit2711+19
−19		(+4)7.5 − 13.5
(+5−11=5)
35.7%
7.5 / 21
38.1%
−97
55.7%
1940
0.68
1081
0 1 1 = = 1 0 0 1 = 1 0 0 = 0 0 0 0 = 0 0
–   Pharaon 3.5.12704+19
−19		(−3)8 − 13
(+6−11=4)
38.1%
8.0 / 21
59.9%
−92
60.5%
1792
0.62
1085
= 0 0 0 1 1 = 1 0 0 0 0 = 0 1 1 0 0 1 0 =
–   List 5.122699+18
−18		(−8)15 − 9
(+9−3=12)
62.5%
15.0 / 24
75.9%
+68
58.2%
1049
0.52
611
1 = = 1 1 1 = = 1 = = = = 0 = 0 1 0 = 1 1 1 = =
–   SOS 5.12697+18
−18		(−10)11 − 12
(+7−8=8)
47.8%
11.0 / 23
80.6%
−26
55.9%
1525
0.64
852
1 = 1 1 1 0 1 0 1 0 = = = 0 0 0 1 = = = 0 0 =
–   Ruffian 1.0.52687+17
−17		(−20)13.5 − 12.5
(+8−7=11)
51.9%
13.5 / 26
95.0%
−6
60.6%
1551
0.46
940
= = 1 = 0 1 = = 1 0 0 0 1 1 0 = = 0 = = = 1 1 1 = 0
–   Pseudo 0.7c2680+18
−18		(−27)14 − 11
(+10−7=8)
56.0%
14.0 / 25
98.7%
+16
58.9%
1787
0.54
1052
1 1 1 = 1 = 1 0 = 0 = 1 = 1 0 = = 0 1 0 0 1 1 0 =
–   Aristarch 4.502671+18
−18		(−36)15 − 11
(+10−6=10)
57.7%
15.0 / 26
99.9%
+15
54.7%
1611
0.65
881
0 = 1 = 0 1 = 1 = 1 1 1 = 1 1 = 0 1 = 0 = 0 0 1 = =
–   Petir 4.9999992670+19
−19		(−37)17 − 9
(+12−4=10)
65.4%
17.0 / 26
99.9%
+59
58.2%
1599
0.74
931
= 1 1 1 1 = 1 = 0 1 = 1 1 = = = = 1 = 1 1 = 0 0 1 0
–   Hamsters 0.62669+18
−18		(−38)14.5 − 12.5
(+10−8=9)
53.7%
14.5 / 27
99.9%
−14
59.7%
1806
0.47
1078
0 1 1 0 0 1 = = = 0 0 = 1 1 1 = = = 1 1 1 1 0 0 0 = =
–   The Baron 2.23 64-bit2669+19
−19		(−38)19 − 13
(+15−9=8)
59.4%
19.0 / 32
99.9%
+29
54.6%
2160
0.91
1179
1 1 = 1 1 = 1 0 1 0 = 1 = 0 1 = = = 1 0 = 1 0 1 1 1 0 1 1 0 0 0
–   Booot 4.13.12668+18
−18		(−39)16 − 12
(+12−8=8)
57.1%
16.0 / 28
99.9%
+8
60.1%
2181
0.54
1311
1 0 = 1 1 1 0 0 1 1 1 1 = 0 1 = = 1 0 1 0 = 0 = = 1 0 =
–   BugChess2 1.5.22661+18
−18		(−46)20.5 − 8.5
(+16−4=9)
70.7%
20.5 / 29
100.0%
+96
58.0%
1780
0.55
1032
0 = 1 0 1 = 1 = = 1 = = 1 1 1 1 = = 1 = 1 0 1 1 1 1 1 0 1
–   Jonny 2.832652+17
−17		(−55)21.5 − 8.5
(+18−5=7)
71.7%
21.5 / 30
100.0%
+100
53.8%
1928
0.68
1038
1 1 1 1 1 1 1 = 0 = 1 1 0 = 0 1 0 = 1 1 1 1 1 1 = 1 1 0 = =
–   Crafty 21.5 64-bit PS2652+17
−17		(−55)14 − 8
(+11−5=6)
63.6%
14.0 / 22
100.0%
+42
60.3%
1473
0.63
888
1 1 = = = = = 1 0 1 1 1 0 1 = 0 1 1 1 0 0 1
–   The Baron 1.8.12651+18
−18		(−56)14.5 − 10.5
(+11−7=7)
58.0%
14.5 / 25
100.0%
−1
59.1%
1651
0.82
975
0 1 = 1 1 1 0 0 0 1 1 0 1 1 = = = = 1 = = 0 0 1 1
–   Anaconda 2.0.12644+17
−17		(−63)15.5 − 11.5
(+11−7=9)
57.4%
15.5 / 27
100.0%
−12
57.1%
1645
0.57
940
0 = 1 = = = 1 = 0 1 0 = 0 1 = 1 0 1 1 0 0 1 = 1 = 1 1
–   Fritz 5.322643+17
−17		(−64)14.5 − 11.5
(+12−9=5)
55.8%
14.5 / 26
100.0%
−16
60.9%
1821
0.66
1109
0 = 1 1 1 1 0 0 0 1 0 0 1 1 1 1 = 1 0 0 1 = 0 = 1 =
–   Ktulu 4.22634+17
−17		(−73)18.5 − 8.5
(+15−5=7)
68.5%
18.5 / 27
100.0%
+58
58.7%
1916
0.57
1124
1 1 1 = 1 1 = 1 1 0 1 0 1 0 1 1 1 1 = 1 0 = = 1 0 = =
–   Thinker 4.7a2634+17
−17		(−73)13.5 − 11.5
(+10−8=7)
54.0%
13.5 / 25
100.0%
−49
56.5%
1850
0.62
1045
1 0 0 1 1 = 1 0 = 0 = = 0 1 0 1 = 1 = 0 0 1 1 = 1
–   SmarThink 0.17a2633+16
−16		(−74)15 − 14
(+12−11=6)
51.7%
15.0 / 29
100.0%
−60
55.7%
1995
0.55
1112
0 = 1 = 0 1 = 0 1 = 1 1 = 1 = 0 0 1 1 1 0 1 0 0 0 1 0 0 1
1036 games in total: 338 wins, 368 losses, 330 draws (31.9%), score: 48.6%
Average opponent: +9.1 (2716.1), average distance to opponent: 51.2

Performance

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

Perf = C − 0.099 [±0.286] * 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