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How to solve Videos Forum Timed Rankings Books Print   Solution 9 Nov 2012
Easy:
4×4
6×6
Sudoku
Medium:
4×4
6×6
Killer
Sudoku
Difficult:
4×4
6×6
9×9
10×10
Killer
Extra
Difficult Killer Sudoku, Rating: ★★★★★      Solved 1085 times

One of the World's Hardest Killer Sudokus
can you solve it?
abcdefghi
1 
15
 
19
 
16
 
8
 
19
Clear cell
Bold cell
Toggle pencil mode
Hide buttons
Change buttons position
Undo
2 
 
15
 
4
 
18
 
 
 
3 
7
 
16
 
16
 
 
12
 
4 
 
 
 
 
 
17
 
 
17
5 
17
10
 
20
 
 
7
 
 
6 
 
 
6
 
9
7
 
26
 
7 
23
 
 
 
 
 
12
 
 
8 
 
 
26
 
 
 
 
 
 
9 
21
 
 
 
 
12
 
10
 
Undo Start over Change puzzle size
total
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