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How to solve Videos Forum Timed Rankings Books  PDF Print 18 Jun 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 532 times
Calcudoku twin  -  these two puzzles have the same solution

abcdef
1 
36×


14+


2 
14+

576×


13+
3 






4 

12+



16+
5 
144×


8+


6 





3
abcdef
1 
144×

90×


1-
2 





3 
14+
24×


12×

4 


11+
3

24×
5 




13+

6 
2-




3
total
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