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How to solve Videos Forum Timed Rankings Books Specials Print 21 Nov 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 242 times
abcdefgh
1 
12+
7|

7|

12|
13|
9+
2 


3 :




3 
11|
8

7|

20×

4 


7|
6|
7|
8+
112×

5 
4-







6 

5|
4-
3-

6|
7|
7 
3-


3-




8 

35×

9|

18×

2

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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Articles: the 10 Hardest Logic/Number Puzzles | The 7 Easiest Puzzles | Numerical Intelligence


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