--level
= easy
= medium
= hard
Play existing Sudoku:
57
easy
03-dec-2014
56
easy
23-jul-2014
55
easy
13-jun-2014
38
easy
15-feb-2012
36
easy
22-nov-2011
28
easy
04-jul-2011
48
medium
20-feb-2013
27
medium
04-jul-2011
39
hard
15-feb-2012
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