Jigsaw-doku
(Published on 3. October 2022, 20:31 by jwsinclair)
Oh no! Someone dropped a perfectly good sudoku and it shattered into 25 tiny pieces.
Put the puzzle back together by rearranging the cages to form a traditional 9x9 sudoku.
The digits in each cage sum to the number in the top left corner, and must be in the same relative positions in both the 15x15 "shattered" grid and the 9x9 grid.
Digits cannot repeat within a row, column, or cage in either grid.
In the 9x9 grid:
- each cage must be entirely inside a single 3x3 box
- cages cannot overlap, and cannot be rotated or reflected
- the digit in the center cell in each 3x3 box must be the number of that box (i.e. r2c2 = 1, r2c5 = 2, etc.)
The 15x15 puzzle: F-Puzzles | CtC
Blank 9x9 grids: F-Puzzles | CtC
(I suggest using the CtC line tool or F-Puzzles in setting mode to draw cages)
Solution code: row 3, column 6 of the solved 9x9 puzzle (18 characters, no spaces)
Comments
on 21. December 2024, 02:25 by nassausolver
That was extremely difficult and one of the best puzzles I've ever solved
on 27. October 2022, 22:42 by Niverio
Very lovely concept executed very elegantly!
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Thanks!
on 6. October 2022, 14:41 by Snookerfan
Lovely puzzle, so much fun! Thank you
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Thanks!
on 5. October 2022, 23:45 by kjholt
Loved this! So fun switching back and forth and the logic flowing between the two grids. Very nicely done. Probably a 3* but maybe slightly higher for length.
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Thanks! That's about what I was thinking in terms of difficulty: around 3 or 3.5, with another half-star added just for the novelty and complexity.
on 3. October 2022, 21:21 by cdwg2000
Very nice!
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Thanks!
on 3. October 2022, 20:36 by jwsinclair
Thanks for solving and rating (and tolerating this cumbersome ruleset)! If you or someone you know might enjoy a weekly set of puzzles that are a bit easier than the ones here, but still engaging and challenging, check out Artisanal Sudoku. Primarily killer sudokus, often in combination with other rulesets.
https://artisanalsudoku.substack.com
