[This is a repost from our archives with new notes at the top (original post here): Consecutive Sudoku is one of the most basic variations of Sudoku to uses properties of the numbers to help place sets of digits into the grid. Wei-Hwa Huang and I included it in Mutant Sudoku with several artistic themes, despite the challenges that the “anti”-rule forces into puzzles for having no consecutive digits when bars are not present. In future years, GMPuzzles prioritized Consecutive Pairs Sudoku which only uses the positive information of known pairs for cleaner themes and easier solving. But as we look back on our past, this week will show examples of me pushing the limits of a style with two kinds of constraints, positive and negative, across every pair of cells.

PDF

or solve online (using our beta test of Penpa-Edit tools)

Theme: Hashtag Fun? A consecutive sudoku with a large # in the middle.

Rules: Standard Consecutive Sudoku rules.

Estimated Difficulty*: 2 stars

Time Standards (highlight to view): Grandmaster = 2:00, Master = 3:00, Expert = 6:00

Solution: PDF

Note: Follow this link for other Consecutive Sudoku. If you are new to this puzzle type, here are our easiest Consecutive Sudoku to get started on.