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How to solve Videos Forum Timed Rankings Books Specials Print 23 Aug 2017
Easy:
4×4
5×5
Sudoku
Medium:
4×4
5×5
6×6
7×7
8×8
Killer
Sudoku
Difficult:
4×4
5×5
7×7
Extra
Medium 8 × 8, Rating: ★★  Points: 7     Solved 470 times
Calcudoku twin  -  these two puzzles have the same solution

abcdefgh
1 
2 :

1-
2-

8
18+
13+
2 

23+


144×



3 


180×
2




4 




168×


10+
5 
19+

8
15+
3



6 
9+




168×


7 

72×
19+

11+


40×
8 


4


3+


abcdefgh
1 
15+
2
9+
24+


15+
42×
2 



2-




3 
2-

1-

18+

15+

4 







3+
5 
672×
280×


11+

4

6 



6+


6
840×
7 

13+


6
8+


8 
3

2 :

7



total
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