Route 66
(Published on 14. February 2026, 23:09 by jwsinclair)
Route 66, by James Sinclair
Normal sudoku rules apply, and all clues are standard.
Negative constraint: digits in orthogonally adjacent cells cannot have a 1:2 ratio.
Renban lines: purple lines contain a non-repeating set of consecutive digits in any order.
Quadruple circles: a digit inside a white circle appears in one of the four cells surrounding that circle.
SudokuPad
Since I haven't linked to it here before, I wanted to mention the Artisanal Sudoku book, which will be published March 17 and is available for pre-order now. The book features 150 variant sudokus, including 75 new puzzles and 75 favorites from the first four years of my newsletter. I put a lot of work into it, and I'm really excited for it to finally be out there :)
Solution code: row 5
Solved by Piff, gdc, StevenS, anton_anton, Hrothan, emoney1374, apendleton, SeveNateNine, DanishDynamite, Debba, LuridGraph, richardkchapman, lrbhandanshi, damo_89, dawidk, tuturitu, totem_mapr, Crul, ... lina_hyena, by81996672, chesskudo, Tacocat, Silentdodo, b413x, JoeyJoeJoe, Vodakhan , taniabn, Sonki, belarusian644, lianarox, belnovic, Bjd, Neumino, SashaBu, sorryimLate, wolf69, RedBarchetta
Comments
on 16. February 2026, 10:49 by JoeyJoeJoe
Thank you for setting!
on 15. February 2026, 16:04 by Snookerfan
Quality as usual! Thanks
on 15. February 2026, 15:14 by Adrian71
This is a brilliant puzzle, very enjoyable to solve, compliments on the great setting!
Last changed on 15. February 2026, 12:05
on 15. February 2026, 12:05 by Bionic Cheese
Great stuff
on 15. February 2026, 03:07 by apendleton
What a delight! This was full of surprising inferences from beginning to end.
