This variation from Dr. Sudoku will appear on the 8th round of the Sudoku Grand Prix opening August 5th and running through August 8th. This puzzle was created as the “example” puzzle for the style, and is a representative puzzle (in difficulty and style) to help prepare for the competition.
or solve online (using our beta test of Penpa-Edit tools)
Author/Opus: This is the 417th puzzle from Thomas Snyder, aka Dr. Sudoku.
Rules: Standard Sudoku rules. Also, some numbers are given on the edges between two adjacent cells. Treating those cells as a two-digit number (reading left to right or top to bottom), the two-digit number must be a multiple of the clue. (For example, near a 7 clue, the two digits can be 14, 21, 28, 35, ….)
Difficulty: 4 stars
Time Standards (highlight to view): Grandmaster = 7:30, Master = 10:00, Expert = 20:00