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How to solve Videos Forum Timed Rankings Books Print 23 Feb 2018
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 4 × 4, Rating:   Points: 2     Solved 292 times
abcd
1 
14+
3+

9+
2 




3 


9+
1-
4 




total
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