This Kropki Pairs Sudoku was inspired by a variant selection and puzzle by Philip Newman from earlier today, as Thomas explored how some new themes can be added to Consecutive Pairs by allowing multiplication on the other side of a grid.

PDF

or solve online (using SudokuPad)

Theme: Where Addition Meets Multiplication

Author/Opus: This is the 582nd puzzle from Thomas Snyder, aka Dr. Sudoku.

Rules: Standard Sudoku rules (insert a number from 1 to 9 into each cell so that no number repeats in any row, column, or bold region). If a white circle is given between two adjacent cells, then the two numbers in those cells must differ by 1. If a black circle is given between two adjacent cells, then the two numbers must have a ratio of 2. Pairs of cells without circles can have any relationship.

Solution: PDF

Note: Follow this link for more Genuinely Approachable Sudoku puzzles on this site. Follow this link for other less common variations of Sudoku.

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