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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Hamsters 0.6 UCI#25–26  (2669+18
−18
)Quote
Author: Alessandro Scotti (Italy) Released: 2007-12-07Link: Homepage
This engine is stable and runs without issues.
This is one of the 2 Hamsters versions we tested: Compare them!
OpponentEloDiffResultsScoreLOSPerfPond
hit
Eval
diff
–   E.T. Chess 13.01.082733+21
−21
(+64)7.5 − 20.5
(+4−17=7)
26.8%
7.5 / 28
0.0%
−106
59.6%
2041
0.66
1216
= = = 1 0 0 0 1 0 0 = 0 0 = 0 0 0 0 0 0 = 0 1 1 0 0 = 0
–   WildCat 82730+22
−22
(+61)15 − 17
(+9−11=12)
46.9%
15.0 / 32
0.0%
+39
57.4%
2202
0.64
1265
= 0 = 0 0 0 = 0 1 1 1 0 1 = = 0 1 = = 1 = 0 = 1 0 = 0 1 1 = = 0
–   Alfil 8.1.1 Optimized2723+21
−21
(+54)8 − 18
(+5−15=6)
30.8%
8.0 / 26
0.0%
−84
60.1%
2025
0.56
1218
= = 0 1 = 1 0 0 = 0 1 0 0 1 0 0 = 0 0 = 0 0 0 0 1 0
–   Movei 00.8.438 (10-10-10)2722+21
−21
(+53)8 − 21
(+4−17=8)
27.6%
8.0 / 29
0.0%
−105
61.9%
2062
0.54
1276
0 0 0 0 0 0 = = = 1 = = 0 0 0 0 0 0 = 0 0 1 0 0 1 = 0 1 =
–   Pro Deo 1.62719+22
−22
(+50)16.5 − 10.5
(+10−4=13)
61.1%
16.5 / 27
0.0%
+117
54.4%
1455
0.62
791
= 1 1 = = = = = = 1 = = 1 0 0 = 1 1 0 = 1 = 1 1 0 = 1
–   Delfi 5.22718+21
−21
(+49)10.5 − 16.5
(+7−13=7)
38.9%
10.5 / 27
0.0%
−25
62.4%
2438
0.46
1522
0 0 0 0 0 0 0 = 0 = 1 = = 1 0 = = 1 0 0 1 1 = 1 1 0 0
–   WildCat 72718+19
−19
(+49)10 − 17
(+6−13=8)
37.0%
10.0 / 27
0.0%
−41
55.6%
1799
0.63
1001
0 0 0 = = 1 0 1 0 1 = = = 0 0 = 0 = 0 0 0 = 0 1 1 0 1
–   Zappa 1.1 64-bit2717+19
−19
(+48)12 − 15
(+6−9=12)
44.4%
12.0 / 27
0.0%
+11
55.7%
1436
0.94
800
0 0 1 = = 0 1 = = 0 0 = 1 = = = = = 0 = 0 1 1 = 0 0 1
–   Slow Chess Blitz WV2.12716+19
−19
(+47)10.5 − 12.5
(+8−10=5)
45.7%
10.5 / 23
0.0%
+13
61.0%
1612
0.66
983
1 = = 0 0 0 1 = 1 1 1 0 0 = 1 0 = 1 0 0 0 0 1
–   Frenzee 3.0 64-bit2711+19
−19
(+42)9.5 − 17.5
(+6−14=7)
35.2%
9.5 / 27
0.0%
−62
54.2%
2082
0.63
1129
= = 0 = = 0 0 0 1 0 0 1 = 1 0 0 0 = = 0 0 0 1 1 1 0 0
–   Colossus 2007d2707+20
−20
(+38)12.5 − 14.5
(+8−10=9)
46.3%
12.5 / 27
0.1%
+14
59.7%
1806
0.47
1078
1 0 0 1 1 0 = = = 1 1 = 0 0 0 = = = 0 0 0 0 1 1 1 = =
–   Pharaon 3.5.12704+19
−19
(+35)11 − 14
(+6−9=10)
44.0%
11.0 / 25
0.2%
−3
59.5%
1571
0.46
935
0 1 1 0 = 1 0 1 = = = 1 0 = 0 0 0 0 1 = 0 = = = =
–   List 5.122699+18
−18
(+30)15.5 − 6.5
(+9−0=13)
70.5%
15.5 / 22
0.6%
+144
57.9%
893
0.72
517
1 = 1 = 1 = = = 1 = 1 = = = = = 1 1 1 1 = =
–   SOS 5.12697+18
−18
(+28)10.5 − 14.5
(+7−11=7)
42.0%
10.5 / 25
1.0%
−23
55.6%
1909
0.80
1061
= 0 1 0 0 = = 1 0 0 0 0 1 = 1 = 1 1 0 0 0 1 = = 0
–   Colossus 2007c2694+19
−19
(+25)11 − 17
(+7−13=8)
39.3%
11.0 / 28
2.1%
−47
57.2%
2131
0.52
1218
= 0 1 0 0 1 0 0 = 1 0 = 0 = 1 1 1 0 0 0 0 1 = = 0 = 0 =
–   Ruffian 1.0.52687+17
−17
(+18)12.5 − 14.5
(+7−9=11)
46.3%
12.5 / 27
5.7%
−7
59.7%
1532
0.56
915
0 1 = = = 0 0 1 1 = = = = = 0 1 1 0 0 = 1 = = 0 1 0 0
–   Petir 4.392682+18
−18
(+13)12 − 13
(+8−9=8)
48.0%
12.0 / 25
14.9%
0
60.1%
1850
0.50
1111
= = 1 0 = = 0 0 0 1 = 0 = 1 1 0 0 1 0 1 0 = = 1 1
–   Pseudo 0.7c2680+18
−18
(+11)9.5 − 15.5
(+8−14=3)
38.0%
9.5 / 25
18.0%
−82
59.7%
2810
0.40
1677
1 1 0 1 1 1 0 0 0 0 0 1 = 0 0 0 1 0 0 1 0 = = 0 0
–   Aristarch 4.502671+18
−18
(+2)14.5 − 13.5
(+11−10=7)
51.8%
14.5 / 28
44.0%
+13
50.8%
1838
1.11
933
= 0 0 0 1 = 1 = 0 1 0 1 = 1 1 = 0 = 1 1 = 0 1 0 1 1 0 0
–   Petir 4.9999992670+19
−19
(+1)13.5 − 14.5
(+7−8=13)
48.2%
13.5 / 28
49.0%
−12
62.9%
1557
0.56
979
= = 0 0 1 = 0 = 1 0 = = 0 = = 1 = 0 0 0 1 = = = 1 1 1 =
–   The Baron 2.23 64-bit2669+19
−19
(0)11.5 − 20.5
(+8−17=7)
35.9%
11.5 / 32
49.8%
−102
58.8%
2187
0.85
1287
0 0 0 = 1 1 0 1 0 1 0 1 = 0 0 = = 0 1 = 0 = 0 0 0 0 = 0 0 1 0 1
–   Booot 4.13.12668+18
−18
(−1)12.5 − 15.5
(+7−10=11)
44.6%
12.5 / 28
55.3%
−34
61.1%
1667
0.57
1019
= 1 = 0 0 1 1 0 = 0 1 0 1 1 = 0 = = = 1 0 0 0 = 0 = = =
–   BugChess2 1.5.22661+18
−18
(−8)14.5 − 11.5
(+10−7=9)
55.8%
14.5 / 26
76.0%
+31
60.3%
1843
0.52
1112
1 = 0 1 1 1 = = 1 0 = 1 1 1 1 0 0 = 0 = 0 0 = 1 = =
–   Jonny 2.832652+17
−17
(−17)17.5 − 8.5
(+12−3=11)
67.3%
17.5 / 26
93.8%
+92
53.6%
1376
0.56
738
1 = 0 = 1 = 1 1 = = 1 = 1 = 1 1 1 1 = = = 0 = 0 1 1
–   Crafty 21.5 64-bit PS2652+17
−17
(−17)14.5 − 12.5
(+11−9=7)
53.7%
14.5 / 27
92.9%
+8
55.9%
2225
0.66
1243
0 = = 0 0 1 1 = 0 1 1 1 1 1 0 1 = = = = 1 0 1 0 0 0 1
–   The Baron 1.8.12651+18
−18
(−18)11.5 − 12.5
(+8−9=7)
47.9%
11.5 / 24
93.9%
−34
57.1%
1656
0.84
946
1 = 0 0 = 0 1 0 0 1 1 = 1 1 1 1 = 0 0 = 0 0 = =
–   Anaconda 2.0.12644+17
−17
(−25)13 − 11
(+10−8=6)
54.2%
13.0 / 24
98.4%
+2
56.7%
1752
0.68
994
1 1 1 0 1 1 0 0 = 0 = 0 1 1 1 = 0 1 1 0 = = = 0
–   Fritz 5.322643+17
−17
(−26)13 − 9
(+8−4=10)
59.1%
13.0 / 22
98.8%
+27
60.2%
1348
0.56
811
1 = 0 0 = 0 1 = = = = = = 1 = 1 1 1 0 = 1 1
–   Ktulu 4.22634+17
−17
(−35)13 − 14
(+10−11=6)
48.1%
13.0 / 27
99.9%
−51
60.6%
2007
0.73
1216
0 0 = 1 0 1 0 1 1 1 0 1 0 0 0 = = 1 0 0 1 = 1 0 = = 1
–   Thinker 4.7a2634+17
−17
(−35)10.5 − 13.5
(+7−10=7)
43.8%
10.5 / 24
99.9%
−79
56.6%
1881
0.49
1065
1 = 0 1 0 = 0 0 = = 1 = 1 0 0 1 = 0 0 = 1 0 1 0
–   SmarThink 0.17a2633+16
−16
(−36)17.5 − 11.5
(+13−7=9)
60.3%
17.5 / 29
99.9%
+36
57.5%
1883
0.66
1083
1 1 = 1 1 = 1 = 1 0 1 = 0 = 1 1 1 1 = 0 0 0 0 0 = = 1 = 1
–   Ufim 8.022628+18
−18
(−41)11 − 11
(+8−8=6)
50.0%
11.0 / 22
100.0%
−42
59.4%
1898
0.78
1127
= 1 0 = = = 1 1 0 1 0 1 1 1 0 = 0 = 0 0 1 0
–   Fritz 6 Light2627+19
−19
(−42)11.5 − 13.5
(+9−11=5)
46.0%
11.5 / 25
100.0%
−69
58.5%
2039
0.53
1193
= 0 0 = 0 0 1 1 = = 1 1 1 0 1 = 0 0 0 0 1 1 0 1 0
–   Trace 1.37a2622+17
−17
(−47)15.5 − 6.5
(+14−5=3)
70.5%
15.5 / 22
100.0%
+116
56.1%
1817
0.65
1019
1 0 1 1 1 1 0 1 1 1 1 1 = 0 1 0 1 = 1 1 0 =
–   AnMon 5.602621+18
−18
(−48)15.5 − 9.5
(+12−6=7)
62.0%
15.5 / 25
100.0%
+37
55.7%
1662
0.55
925
1 0 1 = 1 1 1 1 1 1 0 = = = 0 0 1 0 = 1 = = 0 1 1
–   E.T. Chess 18.11.052620+21
−21
(−49)14.5 − 11.5
(+9−6=11)
55.8%
14.5 / 26
100.0%
−13
61.4%
1542
0.70
947
= = = = 1 = = 1 1 = 0 1 1 1 = = 0 1 1 = 0 0 0 = 1 0
–   Little Goliath 3.12 Evolution (TB Off)2614+17
−17
(−55)18.5 − 7.5
(+17−6=3)
71.2%
18.5 / 26
100.0%
+111
54.4%
2589
1.16
1409
1 0 0 1 0 1 1 1 1 1 0 = 1 1 1 = 1 1 1 0 1 = 0 1 1 1
–   Yace 0.99.872609+17
−17
(−60)14 − 14
(+10−10=8)
50.0%
14.0 / 28
100.0%
−57
54.2%
1931
0.52
1046
1 = 1 = = 0 1 0 0 0 1 0 0 1 = = 1 1 = 1 = 0 0 = 0 0 1 1
–   Little Goliath 3.12 Evolution (TB On)2607+19
−19
(−62)13.5 − 11.5
(+10−8=7)
54.0%
13.5 / 25
100.0%
−35
52.5%
1932
0.99
1014
0 = = 1 1 1 1 0 1 1 0 1 0 0 = 0 1 1 0 = = 0 1 = =
–   Hamsters 0.52595+21
−21
(−74)19.5 − 12.5
(+13−6=13)
60.9%
19.5 / 32
100.0%
−6
69.2%
2075
0.27
1435
= 0 = = = = 0 = 0 1 0 1 = 1 = 1 1 1 = 0 = 1 0 = 1 1 1 1 1 = 1 =
–   Pepito 1.59 32-bit2595+19
−19
(−74)18.5 − 5.5
(+14−1=9)
77.1%
18.5 / 24
100.0%
+105
57.0%
1489
0.58
849
1 0 1 = 1 1 = = 1 1 1 1 = = 1 = = 1 1 = 1 1 = 1
–   Bruja 1.9 64-bit JA No-int-book2584+18
−18
(−85)19 − 9
(+16−6=6)
67.9%
19.0 / 28
100.0%
+47
56.7%
2206
0.47
1251
1 1 1 1 1 1 = 1 1 = = 0 1 = 1 0 = 0 1 0 1 0 1 1 0 1 = 1
–   Green Light Chess 3.002582+17
−17
(−87)16.5 − 13.5
(+11−8=11)
55.0%
16.5 / 30
100.0%
−54
61.9%
2264
0.41
1402
1 = 0 = = 1 = 0 0 0 1 = 1 1 1 = 0 1 0 1 1 = = = 0 0 = 1 = 1
–   Tao 5.62574+17
−17
(−95)19.5 − 3.5
(+18−2=3)
84.8%
19.5 / 23
100.0%
+197
55.2%
2123
0.91
1172
= 1 1 0 1 1 1 1 1 1 = 1 1 1 0 1 1 1 1 = 1 1 1
–   Abrok 5.02561+17
−17
(−108)17.5 − 5.5
(+15−3=5)
76.1%
17.5 / 23
100.0%
+87
56.4%
1980
0.50
1117
1 0 1 1 1 1 = 1 1 1 = = 1 0 1 1 1 = 0 1 1 1 =
–   Amyan 1.5972552+17
−17
(−117)18 − 7
(+16−5=4)
72.0%
18.0 / 25
100.0%
+53
60.3%
2236
0.51
1349
1 1 1 = = 0 1 1 1 1 1 0 1 1 1 1 0 = 1 0 = 1 1 0 1

Performance

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

Perf = C − 0.461 [±0.387] * 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