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How to solve Videos Forum Timed Rankings Books Specials Print 17 Oct 2017
Easy:
4×4
5×5
6×6
Killer
Sudoku
Medium:
4×4
6×6
8×8
Killer
Sudoku
Difficult:
4×4
6×6
8×8
9×9
Extra
Difficult 8 × 8, Rating: ★★★★★  Points: 8     Solved 119 times
abcdefgh
1 
15+

11|
2-
6|

9+

2 
6 :
2-



5+

3|
3 


15+

2-

7+

4 
5|
9|
7|
4-

7|

7|
5 



10+




6 
7|
7+

48×
7|
24×

15|
7 




3-


8 
3

1-

1

7|

Note: this puzzle also uses the bitwise OR operator |
(see for example this page or this forum page for an explanation)

total
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