On The Bottom Shelf (Nabner Modifier Sudoku)
(Published on 9. September 2023, 00:24 by Silverstep)
Another Nabner puzzle, this time featuring a variant (adder cells) I invented. Thanks to henrypijames, Fool on Hill, rockratzero, and cornish-john for testing.
Rules:
- Normal Sudoku rules apply. Place a digit from 1 to 9 in every cell such that no digits repeat in a row, column, or bold 3x3 box.
- Normal Renban variant rules apply. Cells along the purple line contain a non-repeating set of consecutive values in any order.
- The gold lines are Nabner lines. Two cells that share a Nabner line can have neither the same value nor consecutive values.
- Adder Cells: In each row, column, and box is an "adder" cell. Each "adder" increases the values of orthogonally adjacent cells by N, where N is the digit in the adder cell. Adder cells DO NOT increase themselves. Each digit appears in exactly one adder.
Solution code: Row 2 Column 8 (18 digits, no space)
Comments
on 8. March 2024, 05:33 by SirJefferE
Very clever. I say this on a lot of puzzles, but I can't even begin to imagine how you set something like this.
on 29. December 2023, 17:12 by glum_hippo
Gorgeous puzzle. I don't think I've had to do this much back-tracking on a puzzle in at least 2 years, but it was all worth it. Hope it gets an established rating soon! Thanks to Fool on Hill for recommending.
on 27. September 2023, 18:00 by Jay Dyer
That was a wild ride! Fascinating the way it held together so tightly.
on 15. September 2023, 14:16 by filuta
fascinating
on 15. September 2023, 10:29 by tesseralis
*very* hard for me but just as beautiful. I feel like the things I learned always came back and the modifier was trippy in a way that worked beautifully with nabners. Amazing job!
on 10. September 2023, 22:38 by Fool on Hill
This is the next dimension of the nabner concept with a mind bending modifier rule. Brilliant puzzle with new ideas.
on 9. September 2023, 23:27 by Fool on Hill
This puzzle, with its 11-cell nabner line (!) and novel modifier rule is beautifully constructed, and well worth the effort.
