Quadrilateral
(Published on 20. April 2024, 18:03 by jwsinclair)
Quadrilateral, by James Sinclair
Normal sudoku rules apply, and all clues are standard.
Thermometers: digits on thermometers increase from the bulb.
Renban lines: purple lines contain a non-repeating set of consecutive digits in any order.
Nabner lines: (thicker) gold lines contain a non-repeating set of digits, and no two digits on the same line can be consecutive (regardless of their position on the line).
Entropic lines: along (thinner) orange lines, every set of three adjacent cells must contain one low digit (1-3), one middle digit (4-6), and one high digit (7-9).
Digits in cells separated by an X sum to 10.
Digits in cells with a shaded square must be even.
SudokuPad
If you or someone you know might enjoy a weekly set of puzzles that are pretty approachable by LMD standards (much more so than this one), check out Artisanal Sudoku. Thanks!
Solution code: row 3
Comments
on 9. May 2024, 03:39 by Nemefish
This is a delightful puzzle. It is hard to accurately rate the difficulty because it is leveraging a technique that seems very unlikely to intuit but has been featured in variant sudoku long enough that "If you know you know." It is a puzzle where the difficulty comes from global design rather than tough individual steps. Very lovely and fun.
on 7. May 2024, 01:39 by SudokuHero
This is brilliant.
on 21. April 2024, 22:33 by antiknight
Amazing puzzle with a really cool break-in and disambiguation clues.
on 21. April 2024, 14:17 by samuel1997
Brilliant puzzle!
I rated this 4* difficulty, because although it only spent me 17 minutes to solve, if you can't spot the trick, you'll be stuck forever!
on 21. April 2024, 11:54 by lmdemasi
This is the kind of puzzle I come to LMD for. Great logic throughout.
on 21. April 2024, 11:11 by fuxia
Very nice logic! Everybody should give this a try. I don't think the 4 stars for difficulty are justified.
on 21. April 2024, 07:59 by emoney13
Incredible puzzle! Amazing how it disambiguates from just a few breaks in the symmetry
on 21. April 2024, 07:54 by Norkas
Very flowy puzzle. Good fun.
on 20. April 2024, 21:46 by Playmaker6174
It's very hard to point out my top 5 favorite puzzles from yours, but I think this one may be up there for sure.
A very elegant idea for the start followed with a greatly diverting solve path afterwards x)
on 20. April 2024, 21:05 by Perladel
Simply genius. Thanks a lot for this stunning puzzle!
on 20. April 2024, 18:28 by Myxo
Beautiful puzzle!
