or solve online (using our beta test of Penpa-Edit tools)
Author/Opus: This is the 378th puzzle from Thomas Snyder, aka Dr. Sudoku.
Rules: Standard Sudoku rules.
Difficulty: 4.5 stars
Time Standards (highlight to view): Grandmaster = 6:30, Master = 15:00, Expert = 30:00
Note: Follow this link for other classic Sudoku. If you are new to this puzzle type, here are our easiest Sudoku to get started on. More classic Sudoku puzzles can be found in The Art of Sudoku, The Art of Sudoku 2 and in our beginner-friendly collection Intro to GMPuzzles by Serkan Yürekli.