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
Slow Chess Blitz WV2.1 UCI#16  (2716+19
−19		)Quote
Author: Jonathan Kreuzer (USA) Released: 2006-03-18Link: Homepage
This engine is stable and runs without issues.
This is the only Slow Chess Blitz version we tested.
OpponentEloDiffResultsScoreLOSPerfPond
hit		Eval
diff
–   Fruit 2.3 32-bit2888+23
−23		(+172)6.5 − 20.5
(+4−18=5)
24.1%
6.5 / 27
0.0%
−30
56.9%
1858
0.53
1057
0 0 1 0 0 0 = 0 = 0 = 0 0 0 0 = 1 0 0 0 = 1 0 0 1 0 0
–   Spike 1.2 Turin2842+23
−23		(+126)9 − 19
(+5−15=8)
32.1%
9.0 / 28
0.0%
+1
60.3%
1961
0.59
1183
= 0 0 = 1 0 0 0 = 1 0 1 = = 0 = 0 1 = 0 1 0 0 0 0 = 0 0
–   Glaurung 2.0.1 64-bit2838+23
−23		(+122)5.5 − 19.5
(+2−16=7)
22.0%
5.5 / 25
0.0%
−81
58.5%
1589
0.79
930
0 0 = 0 1 = 1 0 0 0 0 0 0 = 0 = = 0 0 0 0 = = 0 0
–   Frenzee Feb08 64-bit2810+24
−24		(+94)12.5 − 19.5
(+8−15=9)
39.1%
12.5 / 32
0.0%
+18
55.7%
2091
1.02
1165
= 1 0 1 1 1 0 = 0 = 1 0 1 0 0 = 0 1 0 0 0 = = 0 = = 0 1 0 0 = 0
–   Delfi 5.42801+24
−24		(+85)14 − 18
(+9−13=10)
43.8%
14.0 / 32
0.0%
+44
57.1%
2179
0.52
1245
0 0 0 = = 1 0 1 1 1 = 0 1 1 = 0 0 = 1 0 0 1 0 = = 1 = = = 0 0 0
–   Naum 2.0 64-bit2793+21
−21		(+77)15 − 17
(+9−11=12)
46.9%
15.0 / 32
0.0%
+56
58.8%
1878
0.54
1105
= = 0 0 = 0 = 1 1 = 0 1 = = 0 0 1 0 0 1 0 = = = 1 = = 0 1 1 1 0
–   Bright 0.2c2786+23
−23		(+70)5 − 21
(+2−18=6)
19.2%
5.0 / 26
0.0%
−157
58.4%
2202
0.57
1286
= 1 0 0 0 = 0 = 0 0 0 0 = 0 0 0 0 0 0 = 0 1 0 = 0 0
–   Glaurung 1.2.1 64-bit2770+24
−24		(+54)13 − 19
(+7−13=12)
40.6%
13.0 / 32
0.0%
−5
58.0%
2116
0.62
1227
= 0 0 1 0 1 1 0 1 = 0 = = 0 = 0 1 = = = 1 0 0 0 1 = 0 0 0 = = =
–   Alaric 7072768+22
−22		(+52)13 − 13
(+11−11=4)
50.0%
13.0 / 26
0.0%
+56
60.9%
2179
0.52
1326
1 0 0 1 1 1 = 0 1 1 0 1 0 0 0 0 1 1 = = = 0 1 0 1 0
–   Scorpio 2.0 32-bit2754+23
−23		(+38)10 − 16
(+6−12=8)
38.5%
10.0 / 26
0.2%
−41
58.8%
1844
0.87
1085
0 1 0 = 1 0 1 = 0 0 1 = 0 = 0 1 = 0 = 0 0 1 = = 0 0
–   Scorpio 1.912739+26
−26		(+23)10.5 − 14.5
(+8−12=5)
42.0%
10.5 / 25
5.8%
−29
59.9%
1932
0.81
1158
0 = 0 = 0 0 0 = 0 1 0 1 0 0 1 = 1 0 0 1 0 1 1 = 1
–   E.T. Chess 13.01.082733+21
−21		(+17)13.5 − 14.5
(+7−8=13)
48.2%
13.5 / 28
9.4%
+6
57.8%
1503
0.56
869
= = 0 0 1 0 = 0 = 1 1 0 1 = 1 = 1 0 0 0 = 1 = = = = = =
–   WildCat 82730+22
−22		(+14)16 − 16
(+10−10=12)
50.0%
16.0 / 32
13.8%
+13
57.9%
1995
0.57
1155
1 = 1 = = = = 0 1 1 = 0 = 1 = 0 1 1 1 0 0 = = 0 0 = = 0 1 0 0 1
–   Alfil 8.1.1 Optimized2723+21
−21		(+7)12.5 − 15.5
(+7−10=11)
44.6%
12.5 / 28
28.2%
−25
60.7%
1493
0.60
906
1 1 = = 0 = = 0 1 = 0 0 = = 0 1 = 1 = 1 = 0 1 0 0 0 = 0
–   Movei 00.8.438 (10-10-10)2722+21
−21		(+6)15.5 − 13.5
(+10−8=11)
53.4%
15.5 / 29
31.3%
+29
57.7%
1815
0.54
1048
1 = 0 = = = 1 1 0 1 = 0 1 = 0 0 0 1 1 0 0 = = = 1 = 1 1 =
–   Pro Deo 1.62719+22
−22		(+3)9.5 − 16.5
(+7−14=5)
36.5%
9.5 / 26
41.1%
−94
57.5%
1718
0.68
987
1 0 0 0 1 0 = 0 1 = 0 1 = 0 0 0 = 1 0 0 = 1 0 0 1 0
–   Delfi 5.22718+21
−21		(+2)16.5 − 8.5
(+13−5=7)
66.0%
16.5 / 25
41.8%
+111
63.2%
1738
0.63
1098
1 = 0 0 1 1 = 1 = 0 1 1 1 0 = = 0 1 1 = 1 1 1 1 =
–   WildCat 72718+19
−19		(+2)14.5 − 17.5
(+9−12=11)
45.3%
14.5 / 32
42.3%
−27
60.9%
2004
0.47
1220
= = 0 0 1 0 = 1 = 0 0 = 0 1 0 0 = 0 1 1 = 0 0 0 1 1 = = = 1 1 =
–   Zappa 1.1 64-bit2717+19
−19		(+1)17.5 − 14.5
(+10−7=15)
54.7%
17.5 / 32
43.8%
+28
58.8%
1593
0.66
936
= 0 = 1 = 1 1 1 = = 0 = = 0 1 0 = 0 0 = 0 = = = 1 = 1 = 1 1 = 1
–   Alaric 7042713+26
−26		(−3)13.5 − 14.5
(+10−11=7)
48.2%
13.5 / 28
58.2%
−18
61.1%
2023
0.54
1236
= 1 1 1 0 = = = = 1 1 0 1 = 0 0 0 = 1 0 0 0 1 1 0 0 1 0
–   Frenzee 3.0 64-bit2711+19
−19		(−5)15 − 12
(+9−6=12)
55.6%
15.0 / 27
65.2%
+29
58.1%
1526
0.62
887
1 = 1 = = = 1 = 0 0 = 1 = = 0 1 = = 0 = = 1 0 0 1 1 1
–   Colossus 2007d2707+20
−20		(−9)13.5 − 10.5
(+8−5=11)
56.3%
13.5 / 24
75.3%
+30
61.3%
1414
0.60
867
= 1 = = 1 = 0 1 = 1 = 1 = = 1 0 = 1 = 0 = 0 1 0
–   Pharaon 3.5.12704+19
−19		(−12)15.5 − 16.5
(+11−12=9)
48.4%
15.5 / 32
83.6%
−22
59.8%
2248
0.55
1344
1 1 1 0 0 0 1 = = = 1 0 0 = = 0 0 = 0 0 = 1 1 0 0 = = 1 0 1 1 1
–   List 5.122699+18
−18		(−17)16 − 16
(+11−11=10)
50.0%
16.0 / 32
92.8%
−18
63.1%
2216
0.53
1399
0 0 0 1 1 = 1 1 = 1 1 0 = 0 = 0 0 0 = = 0 1 = = 1 0 1 1 0 = = 1
–   SOS 5.12697+18
−18		(−19)8.5 − 13.5
(+5−10=7)
38.6%
8.5 / 22
94.7%
−92
59.5%
1532
0.64
912
1 0 0 = 0 = = 0 = 0 0 0 0 1 = 0 = 1 1 1 0 =
–   Colossus 2007c2694+19
−19		(−22)13 − 15
(+8−10=10)
46.4%
13.0 / 28
96.3%
−44
55.6%
1734
0.52
964
= 0 0 = 0 = 1 1 0 1 1 = 1 0 0 = 0 0 = 1 1 = 1 = = 0 0 =
–   Ruffian 1.0.52687+17
−17		(−29)17 − 15
(+12−10=10)
53.1%
17.0 / 32
99.3%
−8
61.2%
2406
0.43
1473
= 0 1 1 0 = = 0 0 0 = 1 1 0 1 0 1 1 0 0 = 1 1 = 0 = 1 = 1 = = 1
–   Petir 4.392682+18
−18		(−34)13.5 − 12.5
(+9−8=9)
51.9%
13.5 / 26
99.8%
−23
61.7%
2092
0.60
1291
0 0 1 0 1 1 = = = 1 1 = = 1 0 0 1 = = 1 0 = = 0 1 0
–   Pseudo 0.7c2680+18
−18		(−36)15 − 12
(+13−10=4)
55.6%
15.0 / 27
99.9%
+7
61.1%
2328
0.60
1423
1 = 0 = 1 1 = 0 0 0 1 0 0 0 = 1 1 0 1 1 1 1 1 0 0 1 1
–   Aristarch 4.502671+18
−18		(−45)21 − 11
(+15−5=12)
65.6%
21.0 / 32
100.0%
+55
55.5%
1661
0.59
922
1 1 = 0 1 = 1 = 1 1 1 = = = = 1 1 0 1 = = = 0 1 0 1 1 0 1 1 = =
–   Petir 4.9999992670+19
−19		(−46)20 − 4
(+17−1=6)
83.3%
20.0 / 24
100.0%
+203
63.0%
1701
0.76
1071
= 1 1 1 = 1 1 1 = = 1 1 = 1 1 0 1 = 1 1 1 1 1 1
–   Hamsters 0.62669+18
−18		(−47)12.5 − 10.5
(+10−8=5)
54.3%
12.5 / 23
100.0%
−13
61.0%
1612
0.66
983
0 = = 1 1 1 0 = 0 0 0 1 1 = 0 1 = 0 1 1 1 1 0
–   The Baron 2.23 64-bit2669+19
−19		(−47)21.5 − 10.5
(+16−5=11)
67.2%
21.5 / 32
100.0%
+67
58.3%
1838
0.62
1071
1 0 = 0 1 1 1 1 1 = 1 = 1 = 1 0 = 1 = 1 1 1 = 0 1 = 1 = 1 = 0 =
–   Booot 4.13.12668+18
−18		(−48)11 − 15
(+7−11=8)
42.3%
11.0 / 26
100.0%
−97
59.6%
2053
0.50
1223
1 = 0 1 0 0 0 0 = = = 1 1 = 0 1 1 0 = 0 1 = 0 = 0 0
–   BugChess2 1.5.22661+18
−18		(−55)17.5 − 8.5
(+13−4=9)
67.3%
17.5 / 26
100.0%
+61
57.7%
1464
0.79
844
1 = = 1 = 1 = = 1 1 1 1 1 0 = 1 0 = 0 0 1 = 1 1 1 =
–   Jonny 2.832652+17
−17		(−64)11.5 − 14.5
(+5−8=13)
44.2%
11.5 / 26
100.0%
−101
57.9%
1344
0.65
778
1 0 1 = = 0 = 0 1 0 = 0 = = 0 0 = = = 0 1 = = = 1 =
–   Crafty 21.5 64-bit PS2652+17
−17		(−64)13 − 13
(+8−8=10)
50.0%
13.0 / 26
100.0%
−61
57.4%
1738
0.57
997
= = = 1 = 0 1 1 1 0 1 1 = 0 = = = 0 0 1 0 1 = 0 0 =
–   The Baron 1.8.12651+18
−18		(−65)16 − 9
(+12−5=8)
64.0%
16.0 / 25
100.0%
+25
53.6%
1872
0.67
1003
= 0 = 1 1 = 0 0 = 1 = 1 1 = = 1 1 1 = 1 1 1 0 0 1
–   Anaconda 2.0.12644+17
−17		(−72)15 − 6
(+12−3=6)
71.4%
15.0 / 21
100.0%
+75
62.0%
1322
0.51
820
1 1 1 = 0 = 0 = 1 1 1 1 1 1 1 = = = 1 1 0
–   Fritz 5.322643+17
−17		(−73)14 − 8
(+10−4=8)
63.6%
14.0 / 22
100.0%
+16
63.4%
1347
0.72
854
= 1 = 1 1 = = = 0 = 0 = 1 1 1 1 0 = 1 0 1 1
–   SmarThink 0.17a2633+16
−16		(−83)20.5 − 11.5
(+14−5=13)
64.1%
20.5 / 32
100.0%
+4
55.1%
1613
0.46
889
1 0 1 = = = = 1 = 1 0 0 1 0 = 1 = = = 1 1 1 = = 1 1 1 = = 0 1 1
1136 games in total: 379 wins, 388 losses, 369 draws (32.5%), score: 49.6%
Average opponent: +3.2 (2719.2), average distance to opponent: 45.0

Performance

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

Perf = C − 0.160 [±0.331] * 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