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How to solve Videos Forum Timed Rankings Books PDF Print 29 Sep 2020
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 125 times
abcdefgh
1 
4-

2 :

7+
6|
7|

2 
7|

3|



15|

3 
5|

15+

1-
10×

2-
4 
12+
30×



7|


5 

2

7|

24×

3|
6 
0-

20×

15+


7 


11+
12×

2-
20×

8 
12+



6

24×

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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