Tucumcari
(Published on 25. July 2026, 17:07 by jwsinclair)
Fill each row, column, and box with the digits 0-9 once each, with exactly one cell in each row, column, and box containing two digits.
A cell's value is equal to the sum of its digits.
Arrows: the sum of the values along an arrow is equal to the value in the connected circle.
Renban lines: the purple line contains a non-repeating set of consecutive values in any order.
Values in cells separated by a black dot have a 1:2 ratio.
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Solution code: row one (for the cell with two digits, give both, with the lower digit first)
Comments
on 21. September 2026, 00:00 by Nemefish
more approachable than i expected given the Schroedinger cells. I was able to place the S-cells fairly quickly. I agree with others that the problems come more from scanning and remembering how renbans work than from puzzle design.
on 21. August 2026, 11:36 by PatternSpren
Lovely puzzle, thanks
on 3. August 2026, 07:39 by Norkas
Nice flow. The biggest problem for me was my scanning not picking up on basic sudoku with small digits in schrödingers cells.
on 1. August 2026, 16:37 by Elker
Very clever. Loved the mix of s-cell and renban.
on 31. July 2026, 12:21 by HighEagle
Magnificent setting. Thank you!
on 28. July 2026, 15:45 by Arheus
Great use of Schrodinger and clean flow from beginning to end!
on 27. July 2026, 16:14 by Elker
Very clever. Loved the mix of s-cell and renban.
on 27. July 2026, 00:59 by Astraeus
Oof! Became my own worst enemy forgetting that the values on the renban had to be both distinct *and* consecutive, but once I shook that out of my head it flowed beautifully! Really cool puzzle that twisted my brain in knots.
on 26. July 2026, 13:25 by Snookerfan
Very nice! Thanks
on 26. July 2026, 13:10 by abadx
Lovely handcrafted modifier sudoku. I had always to keep in mind that modifier cells are 2 numbers (my mind kept going towards the doublers instead)
on 25. July 2026, 21:02 by Fool on Hill
Excellent - careful thought required, but solves beautifully
on 25. July 2026, 18:47 by Myxo
Lovely!
on 25. July 2026, 18:18 by Playmaker6174
A sweet and fun puzzle overall! Pretty clean solve path too, one just needs to scan the grid carefully :)
