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How to solve Videos Forum Timed Rankings Books PDF Print 27 Jun 2019
Easy:
4×4
5×5
Sudoku
Medium:
4×4
5×5
6×6
8×8
Killer
Sudoku
Difficult:
4×4
5×5
6×6
8×8
12×12
Extra
Difficult 8 × 8, Rating: ★★★★★  Points: 8     Solved 18 times
abcdefgh
1 
1-

1 mod
2 mod

3-

2
2 

4-

3 mod
56×

6
4
3 
5+

3 mod

30×

3 mod
56×
4 

0 mod

1

4-


5 
4 mod

2 mod
2-


5-

6 

22+

0-

8
19+
1 mod
7 







8 

4
1-

1

3-

Note: this puzzle also uses the modulo operator mod
a mod b = r means that when dividing a by b, the remainder is r. For example, 5 mod 2 = 1, and 3 mod 5 = 3.
Look here for some more explanations.


total
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