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How to solve Videos Forum Timed Rankings Books Print 25 Feb 2018
Easy:
4×4
5×5
6×6
Killer
Sudoku
Medium:
4×4
5×5
6×6
8×8
Sudoku
Difficult:
4×4
5×5
6×6
12×12
Extra
6 × 6 Extra, Rating: ★★★  Points: 8     Solved 31 times
Today this puzzle is for subscribers only
(Extra)
Note: This is a 'no-op' puzzle (also called 'Mystery Calcudoku'):
set the operation of a cage using the Shift + left/right arrow keys
total
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