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How to solve Videos Forum Timed Rankings Books  PDF Print 23 Apr 2018
Easy:
4×4
5×5
6×6
Killer
Sudoku
Medium:
4×4
6×6
7×7
Sudoku
Difficult:
4×4
5×5
6×6
7×7
9×9
Extra
Difficult 6 × 6, Rating: ★★★  Points: 7     Solved 327 times
Calcudoku twin  -  these two puzzles have the same solution

abcdef
1 
24×

9+

60×

2 

1-

19+


3 
7+




20×
4 


2-

18+

5 
11+





6 
5


2-


abcdef
1 
14+
30×

40×
1-

2 





5+
3 
1 :
4-


8+

4 


144×


10×
5 
80×


18+


6 


2



total
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