Are SadMan Sudoku puzzles minimal, in that deleting any single clue will cause it to have multiple solutions?

A. Not necessarily. Because SadMan Sudoku puzzles are symmetrical, it would be necessary to delete either two or four clues, to maintain the symmetry. Deleting any two or four clues would result in a puzzle with either multiple solutions, or that the in-built solver could not solve.

What People Say

Thank you so much for one of the best conceived and executed programs I have ever seen. It is both complete and perfect. I can't imagine what could be added.
Robert LaFortune, Michigan
More …

No malware No spam
McAfee Site Report
Web of Trust