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How to solve Videos Forum Timed Rankings Books PDF Print Subscribe 18 Aug 2022
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 298 times
abcdefgh
1 
7
5 mod
 
12×
 
1 mod
 
13+
Clear cell
Bold cell
Toggle pencil mode
Hide buttons
Change buttons position
Undo
2 
1 mod
11+
24×
 
140×
 
 
 
3 
 
 
 
0 mod
 
5-
 
7+
4 
4 mod
2 mod
7
 
3
5 mod
1-
 
5 
 
 
3-
 
 
 
2 mod
6 
4+
 
2
72×
 
2 :
 
 
7 
6
280×
 
 
2 mod
3-
14+
 
8 
 
 
 
 
 
 
 
7

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 a longer explanation.


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