or solve online (using our beta test of Penpa-Edit tools; use the tab key to alternate between shading and number entry modes)
Theme: Centered Squares
Author/Opus: This is the 396th puzzle from Thomas Snyder, aka Dr. Sudoku.
Rules: Standard Nanro rules.
Difficulty: 2 stars
Time Standards (highlight to view): Grandmaster = 2:00, Master = 3:00, Expert = 6:00
Note: Follow this link for Nanro puzzles on this website and this link for variations on Nanro puzzles. If you are new to this puzzle type, here are our easiest Nanro Puzzles to get started on. More Nanro puzzles can be found in A Number o’ Nanro by Prasanna Seshadri.