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
Hamsters 0.5 UCI (2595+21
−21
)Quote
Author: Alessandro Scotti (Italy) Released: 2007-09-18Link: 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
–   Petir 4.392682+18
−18
(+87)9 − 19
(+4−14=10)
32.1%
9.0 / 28
0.0%
−29
57.1%
2023
0.67
1155
0 0 = 0 = 0 = 0 = 0 = 1 0 = = 0 1 0 0 0 = 0 0 = 0 1 1 =
–   Hamsters 0.62669+18
−18
(+74)12.5 − 19.5
(+6−13=13)
39.1%
12.5 / 32
0.0%
+6
69.2%
2075
0.27
1435
= 1 = = = = 1 = 1 0 1 0 = 0 = 0 0 0 = 1 = 0 1 = 0 0 0 0 0 = 0 =
–   Booot 4.13.12668+18
−18
(+73)8 − 17
(+5−14=6)
32.0%
8.0 / 25
0.0%
−55
61.2%
1881
0.73
1152
0 0 1 0 1 0 = = 0 0 = 0 0 0 0 0 1 1 0 0 = 0 = = 1
–   BugChess2 1.5.22661+18
−18
(+66)6.5 − 16.5
(+5−15=3)
28.3%
6.5 / 23
0.0%
−105
61.1%
2158
0.47
1318
0 0 0 0 0 0 = 1 0 1 1 0 1 0 0 = 0 0 0 = 0 0 1
–   Jonny 2.832652+17
−17
(+57)9.5 − 14.5
(+7−12=5)
39.6%
9.5 / 24
0.0%
−19
54.5%
2088
0.72
1138
0 0 1 0 1 1 = 1 0 1 0 0 0 0 0 = 0 = 0 = 1 0 1 =
–   Crafty 21.5 64-bit PS2652+17
−17
(+57)11 − 14
(+8−11=6)
44.0%
11.0 / 25
0.0%
+12
56.4%
1888
0.76
1064
1 0 = 0 1 0 1 = 0 = 0 0 0 1 0 1 = 0 0 1 1 1 = 0 =
–   The Baron 1.8.12651+18
−18
(+56)15.5 − 12.5
(+12−9=7)
55.4%
15.5 / 28
0.0%
+91
55.9%
1762
0.84
985
1 1 = = = 0 = 1 1 1 = 0 0 0 1 0 0 0 1 1 = 1 = 0 1 0 1 1
–   Anaconda 2.0.12644+17
−17
(+49)12 − 15
(+8−11=8)
44.4%
12.0 / 27
0.0%
+12
54.5%
2094
0.71
1141
1 = = 0 1 1 = = = 0 = = 1 0 0 1 1 0 1 1 0 0 0 0 0 = 0
–   Movei 00.8.4032643+22
−22
(+48)14.5 − 12.5
(+11−9=7)
53.7%
14.5 / 27
0.0%
+75
63.3%
1936
0.44
1225
0 = = 1 = 0 1 1 0 = 0 0 1 0 = 1 1 = 0 1 1 0 1 = 0 1 1
–   Fritz 5.322643+17
−17
(+48)19.5 − 11.5
(+12−4=15)
62.9%
19.5 / 31
0.0%
+125
60.5%
1717
0.56
1038
= 1 0 = = 1 1 1 = = = = 0 = 1 1 1 = 1 = = = 1 1 = 1 = = 1 0 0
–   Ktulu 4.22634+17
−17
(+39)9 − 20
(+6−17=6)
31.0%
9.0 / 29
0.1%
−103
56.0%
2403
0.96
1345
= 0 0 0 = 0 = 1 = 1 1 0 0 = 0 1 0 0 1 = 0 1 0 0 0 0 0 0 0
–   Thinker 4.7a2634+17
−17
(+39)15 − 12
(+11−8=8)
55.6%
15.0 / 27
0.1%
+76
57.3%
1799
0.61
1031
1 1 = 1 0 0 = 1 = = 0 1 1 1 0 1 = = 0 1 0 = = 1 0 1 0
–   SmarThink 0.17a2633+16
−16
(+38)10 − 18
(+6−14=8)
35.7%
10.0 / 28
0.2%
−63
54.2%
2096
0.82
1135
0 0 0 1 0 = = = = 0 1 1 1 0 0 0 = = 0 0 = 1 = 0 0 0 1 0
–   Ufim 8.022628+18
−18
(+33)10 − 13
(+6−9=8)
43.5%
10.0 / 23
0.6%
−10
54.5%
1584
0.95
864
0 1 = 1 0 = = 0 1 = 0 0 0 0 = 1 = = 0 1 = 1 0
–   Fritz 6 Light2627+19
−19
(+32)11 − 13
(+7−9=8)
45.8%
11.0 / 24
1.0%
+4
61.3%
1397
0.55
856
= = 1 = 0 0 1 = 0 = 0 0 = 1 0 0 0 = 0 1 1 1 = 1
–   Trace 1.37a2622+17
−17
(+27)12.5 − 14.5
(+9−11=7)
46.3%
12.5 / 27
1.8%
0
57.5%
2272
0.70
1307
1 0 0 1 0 1 0 0 = 0 1 1 = 1 1 0 0 0 1 = 1 = = 0 = 0 =
–   AnMon 5.602621+18
−18
(+26)13 − 13
(+10−10=6)
50.0%
13.0 / 26
2.5%
+28
55.6%
1976
0.66
1098
0 0 1 1 0 1 0 0 1 = 1 0 = 0 1 = 0 = 0 = 1 1 0 = 1 1
–   E.T. Chess 18.11.052620+21
−21
(+25)11.5 − 14.5
(+7−10=9)
44.2%
11.5 / 26
4.1%
−13
57.6%
1888
0.56
1087
= = 0 = = 0 0 0 1 = 0 1 0 = 0 1 0 1 0 1 0 = = 1 = 1
–   Little Goliath 3.12 Evolution (TB Off)2614+17
−17
(+19)14 − 14
(+11−11=6)
50.0%
14.0 / 28
7.4%
+17
55.5%
2026
1.08
1124
0 1 1 1 0 = 1 = 0 = 0 = 1 0 = 0 0 1 0 1 0 0 1 1 = 1 0 1
–   Yace 0.99.872609+17
−17
(+14)14 − 11
(+11−8=6)
56.0%
14.0 / 25
14.3%
+54
59.7%
2024
0.49
1209
= 1 = = 0 0 1 = = 1 = 0 1 0 1 0 1 1 1 1 0 1 0 1 0
–   Little Goliath 3.12 Evolution (TB On)2607+19
−19
(+12)9.5 − 15.5
(+4−10=11)
38.0%
9.5 / 25
18.4%
−61
54.6%
1344
1.04
734
= 0 0 1 = = = 1 0 = = 0 0 0 1 0 1 = 0 = 0 0 = = =
–   Green Light Chess 3.002582+17
−17
(−13)11.5 − 16.5
(+7−12=9)
41.1%
11.5 / 28
83.9%
−73
58.6%
2289
0.60
1341
1 = = = = 0 1 0 1 0 1 0 0 1 1 = 0 = 1 0 = 0 0 0 0 0 = =
–   Tao 5.62574+17
−17
(−21)12.5 − 11.5
(+11−10=3)
52.1%
12.5 / 24
94.7%
−4
54.3%
2397
0.78
1301
0 1 0 1 0 1 0 0 1 1 1 1 = = 1 0 = 0 1 1 0 1 0 0
–   Arasan 10.0 64-bit2564+17
−17
(−31)10 − 15
(+7−12=6)
40.0%
10.0 / 25
99.1%
−104
56.8%
2185
0.69
1241
= = 0 1 0 1 = 0 0 0 0 1 0 0 = 1 0 0 1 = 1 1 0 = 0
–   Abrok 5.02561+17
−17
(−34)15.5 − 9.5
(+11−5=9)
62.0%
15.5 / 25
99.5%
+45
55.6%
1621
0.57
902
= 1 0 1 0 1 1 0 = = 1 = = = 1 1 1 0 1 = 1 = 1 = 0
–   Amyan 1.5972552+17
−17
(−43)10.5 − 12.5
(+7−9=7)
45.7%
10.5 / 23
99.9%
−78
57.9%
1702
0.53
986
0 1 1 0 1 = 0 1 0 0 = 1 0 = 0 = = 0 1 0 = = 1
–   SpiderChess 0706032546+17
−17
(−49)17 − 10
(+13−6=8)
63.0%
17.0 / 27
100.0%
+35
53.5%
2237
0.56
1196
= 0 = 1 1 = 1 0 1 = = = 0 1 1 1 0 1 1 1 0 1 1 1 0 = =
–   Quark 2.352536+16
−16
(−59)10.5 − 9.5
(+10−9=1)
52.5%
10.5 / 20
100.0%
−37
56.4%
1680
0.72
948
1 1 0 1 1 1 0 1 0 = 0 1 0 0 1 0 1 1 0 0
–   Nejmet 3.072521+16
−16
(−74)19 − 7
(+15−3=8)
73.1%
19.0 / 26
100.0%
+85
53.3%
2187
0.71
1165
1 1 = 1 = 1 = 1 0 1 0 1 1 0 1 = 1 1 1 = = 1 = 1 = 1
–   Snitch 1.6.2 32-bit2521+15
−15
(−74)15.5 − 9.5
(+11−5=9)
62.0%
15.5 / 25
100.0%
+4
56.7%
1830
0.73
1038
1 = = 1 0 1 = = 1 1 0 0 1 1 = = 0 1 1 = = 1 1 = 0
–   Comet B682478+14
−14
(−117)9.5 − 13.5
(+8−12=3)
41.3%
9.5 / 23
100.0%
−182
55.5%
1707
0.79
948
0 0 0 0 1 0 1 = 1 0 1 1 = 1 0 0 0 1 0 1 = 0 0
–   Sjeng 12.132475+14
−14
(−120)22.5 − 4.5
(+21−3=3)
83.3%
22.5 / 27
100.0%
+166
53.4%
1691
0.74
903
0 1 1 = 1 1 1 1 0 = 1 1 1 1 1 1 1 1 0 1 1 1 1 = 1 1 1

Performance

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

Perf = C + 0.012 [±0.474] * 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