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How to Videos Forum Timed Rankings Books PDF Print 17 Dec 2025
Easy:
4×4
5×5
Sudoku
Medium:
4×4
5×5
6×6
7×7
8×8
Killer
Sudoku
Difficult:
4×4
5×5
7×7
Extra
Medium Killer Sudoku, Rating: ★★★  Points: 7     Solved 278 times
abcdefghi
1 
15
 
13
 
17
 
20
 
5
Clear cell
Bold cell
Toggle pencil mode
Hide buttons
Change buttons position
Undo
2 
 
25
 
 
 
18
 
13
 
3 
11
 
 
11
 
 
3
 
11
4 
 
8
 
12
 
 
 
7
 
5 
11
 
14
 
14
13
 
 
14
6 
 
23
 
10
 
 
15
20
 
7 
 
 
6
 
 
17
 
 
 
8 
 
21
 
12
 
 
 
 
 
9 
 
 
 
 
 
26
 
 
 
Undo
Start over
Change puzzle size
total
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