Medium Sudoku
Generating puzzle…
Medium puzzles have 30 to 35 givens. Besides singles, you will need intersections: when a digit is confined to one row or column inside a box, it can be removed from the rest of that line, and the other way round.
Medium puzzles have 30 to 35 givens. Besides singles, you will need intersections: when a digit is confined to one row or column inside a box, it can be removed from the rest of that line, and the other way round.