Dr. Sudoku Prescribes #8 – Tight Fit Sudoku
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: Somewhere Over/Under the Rainbow
Rules: Standard Tight Fit Sudoku rules. Range is 1-8.
Answer String: Enter the 2nd column from top to bottom, followed by a comma, followed by the 5th column from top to bottom. (Note: for the tight fit cells, enter the top digit before the bottom digit as would be normal for the read order of the digits.)
Time Standard: TFSudoku Master = 1:30, Expert = 4:30, Novice = 15:00
Solution: PDF
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.
My first time solving this variant.
First I broke the puzzle (but did very fast only to be broken at last digits), I read the rules again and then finished in 7 min.
Very nicely constructed.
1″19″
It’s hard to make a hard TF Sudoku
This puzzle is more attractive when somebody post 1″19″..
This is EXTREMELY hard if you don’t read the rules! I’ve done a variant very similar to this without the rule that the top number must be smaller and it took me 4 minutes of looking for a break-in to finally look at the rules!
Every puzzle here has its own puzzle information and history page. I’m trying to make them interesting pages so I encourage you to look at them.
I have no comment on what other variants are out there from other authors. None should be using the name Tight Fit without my smaller/larger twist.
1:34 here, which seems about right. Artistically constructed and fun to do. I like that it’s 1-8 instead of the usual 1-9, even if it’s only a slight adjustment.
While the broadened ranges didn’t show up in Mutant Sudoku, they do in Wei-Hwa and my new Tight Fit Sudoku book so I thought I’d continue to explore them here as one means of getting easier/harder puzzles.
2’11, but I’m a bit drunk. It reminds me some contests during WSC late at the bar…(I always found interesting to study the effects of alcohol on the ability to solve puzzles, haha !)
nice….3:45
5 mins 7 secs in my first tight fit sudoku..