[This is a repost from our archives with new notes at the top: This Tight Fit Sudoku (original post linked) goes to eleven! While most Tight Fit sudoku use the range of 1-9, these larger grids — in this case one that has already filled all the “big cells” and only has Tight Fit cells left — can stretch your mind and your notation in interesting ways.]
or solve online (using our beta test of Penpa-Edit tools; use tab to alternate between Sudoku = big digits and Number candidate = small entries in the corners of cells.)
Theme: The patterned digits in this Tight Fit Sudoku set up an interesting logical solve.
Estimated Difficulty*: 3 stars
Time Standards (highlight to view): Grandmaster = 3:45, Master = 7:30, Expert = 15:00
Note: Follow this link for other Tight Fit Sudoku puzzles on this website. If you are new to this puzzle type, here are our easiest Tight Fit Sudoku to get started on. More Tight Fit Sudoku can be found in our beginner-friendly collection Intro to GMPuzzles by Serkan Yürekli and in The Art of Sudoku 2.