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How to solve Videos Forum Timed Rankings Books Specials Print 21 Aug 2017
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 9 × 9, Rating: ★★★★★  Points: 10     Solved 28 times
abcdefghi
1 
3-

9+

16+
32×

720×
7
2 
1-


27×


8


3 
1-

2-

1-

2


4 

2

160×

0-

21×

5 
21+






10×
6 

1134×

48×

441×

18+

7 
5



9+




8 
0-

1
5-

5

9
13+
9 


2

240×


3

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


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