Fairy Rings
(Published on 1. January 2022, 20:17 by Jay Dyer)
Fairy Rings
Rules:
- Standard: Normal sudoku rules apply.
- Diagonal: Digits may not repeat on either main diagonal.
- Killer: Digits in a cage sum to the clue in the top left corner.
- Thermo: Digits on a thermometer line increase from the bulb end.
Hints:
- If a digit is missing from the Phistomefel ring or its expanded variants, where may it go on the main diagonals?
- What digits are hardest to place on the r19c19 expanded Phistomefel ring?
- Given which digits must therefore appear on the r37c37 standard Phistomefel ring's corner boxes, what pressure does this put on the expanded ring?
Watch Simon's solve on CTC here.
Solution code: Rows 4 and 6
Last changed on on 25. January 2022, 16:23
Solved by SKORP17, Elliott810, Dentones, Caterinas80, PippoForte, Jeet Sampat, Siebuhh, 111chrisi, jgreenfield, Steven R, SSG, kmoter, morgannamodeaura, tinounou, KNT, cfop, geronimo92, cdwg2000, dogfarts, ... polar, Uhu, Vebby, Blake Saligia, OGRussHood, Mikemerin, Bjd, GeorgeTheToad2, Chishiri, Ood, SudokuHero, Sewerin, silent492, mezkur7, SXH, benzonitrile, spientia, StephenR, DarthParadox, Clara123
Comments
on 2. August 2024, 19:12 by mezkur7
Sudokupad(w/sol): https://sudokupad.app/8t8v1jbhld
on 6. May 2022, 17:22 by twobear
Great idea and construction. Thank you!
on 4. January 2022, 00:16 by Jeet Sampat
I was not able to solve this the first time when you posted it on the server. However, I realized I had missed a very simple deduction in row 9! The construction is absolutely perfect, and I can't think of a better way to execute this idea.
on 2. January 2022, 04:07 by Elliott810
Beautiful puzzle with a strictly logical solving path! Thx:)
