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How to solve Videos Forum Timed Rankings Books Specials Print 23 Sep 2017
Easy:
4×4
6×6
Sudoku
Medium:
4×4
6×6
8×8
Sudoku
Difficult:
4×4
6×6
8×8
9×9
Killer
Extra
Difficult 9 × 9, Rating: ★★★★★  Points: 10     Solved 115 times
abcdefghi
1 
2-
17+

11+

16+

4
8
2 


19+

1-


1008×

3 
18+


12+

2



4 


7-


4-

11+

5 
15+



648×

1344×

20×
6 

5-




1

7 
1-

21+

1

17+

6-
8 

144×



1

7

9 
1

3-

224×


9+

total
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