Chaos FilloSudokumino: Deconstruction
(Published on 19. January 2023, 16:12 by MagnusJosefsson)
Write a number in every cell in the grid and place 9 non-overlapping 3x3 subgrids ("Sudoku boxes with "Sudoku cells") such that
1. Each Sudoku box contains the digits from 1-9 once each.
2. Each digit occurs in at most one Sudoku cell per row and column.
3. Disregarding interior Sudoku cells*, the rest of the grid (including all non-interior Sudoku cells) forms a valid Fillomino.
*Interior Sudoku cells are Sudoku cells bordered by other Sudoku cells on all four sides.
- Divide the grid into regions and enter into each cell the size of its region.
- No two region of the same size may share an edge.
Example of a valid puzzle (6x6 Sudoku Deconstruction on smaller grid):
The puzzle:
Link for solving online (Penpa+):
Chaos FilloSudokumino: Deconstruction (Solution check requires numbers in all cells)
-------
Solution code: First column, then last column.
Comments
on 19. September 2024, 21:14 by StephenR
Absolutely magnificent. I recall doing another puzzle by Magnus with a similar ruleset and that was also absolutely magnificent. There are a lot of deductions to be made, but none is tortuously difficult.
on 9. February 2024, 11:23 by Piatato
Awesome! Very smooth and flowing solve, although I did have huge problems initially due to being too lazy to read the rules properly at first. With all the correct rules in mind it flows beautifully throughout!
on 24. December 2023, 13:21 by kmoter
WOW, thanks
on 22. September 2023, 04:22 by sugardude
This puzzle has emotionally touched me...
on 1. September 2023, 22:50 by filuta
very cool, but somehow very hard for me, thanks!
on 12. July 2023, 07:34 by tesseralis
This was one of the most exhilirating and tense puzzle solving experiences I've ever had. Thank you.
on 1. April 2023, 21:09 by konklone
This is one of my all time favorites. Had the experiences of feeling the puzzle must be broken because there couldn't be a solution, and feeling the puzzle must be broken because there are multiple solutions, and then proving myself wrong each time.
Looking forward to the 30x30 fog version of this ruleset next!
on 21. March 2023, 23:55 by GabeSzeto
This was the first 5-star puzzle I completed without any help. This is a masterpiece!
on 8. February 2023, 23:34 by stayal
Amazing puzzle. Loved the break in. It is definitely important to note that sudoku cells along the edge of the grid are NOT considered interior. Once I came back to check the rules on that it flowed very well.
on 6. February 2023, 16:50 by ONeill
Incredible puzzle and so much fun. Thank you!
on 2. February 2023, 16:29 by Al Fresco
Awesome puzzle. Thanks Magnus
on 25. January 2023, 00:35 by SudokuExplorer
A masterpiece! Incredible idea, really well-executed with plenty of fun logic throughout. Thanks so much for setting it :-)
on 24. January 2023, 00:57 by Jay Dyer
Absolutely loved this puzzle (and not just because of a personal bias toward deconstructions). Figuring out how the extra freedom of layout impacted the FilloSudokumino logic was really fun, and there were lots of great "aha" moments throughout.
on 23. January 2023, 19:22 by ddx2407
Beautiful puzzle! Loved it from start to finish!
on 23. January 2023, 01:06 by Christounet
Excellent puzzle ! It made me smile when I saw this puzzle pop up in the list the other day, because I had thought about this ruleset just the day before and I remember thinking : "How cool would that be if Magnus were to get the same idea and got his hybrid sudoku/fillo to play with a deconstruction grid ?" Well, ain't that a treat to get the puzzle you had on your wishlist instantly ! Had to wait for a quiet evening to savour it :)
The beginning and bottom right part of the grid were the peaks of the puzzle for me. And the great chain of rewards after that was the fireworks before the penpa fireworks. Thanks !!
on 22. January 2023, 23:33 by lerroyy
Great puzzle and construction! thanks
on 22. January 2023, 04:10 by RJBlarmo
Beautiful puzzle, every deduction is rewarding and makes the solver feel clever!
on 22. January 2023, 02:36 by wooferzfg
Really fun and beautiful puzzle, thank you! I enjoyed this one more than the original :)
on 20. January 2023, 18:24 by henrypijames
Despite of the well telegraphed break-in, still 4⅔ difficulty for me. Loved the intricate logic in the bottom-right especially.
on 20. January 2023, 17:49 by Vebby
Rule clarification: All cells along the edge of grid must belong to the fillomino. I made the mistake of thinking that non-fillomino cells are those that are not adjacent to any non-sudoku cell.
on 20. January 2023, 08:41 by Jesper
Great follow-up puzzle, which I really enjoyed testing.
on 20. January 2023, 07:03 by Euclid
Absolutely wonderful puzzle, one of my favourites. It was filled with so many clever deductions. I agree with the other comments about the difficulty and rated it 4 stars myself. It took me a long time to solve overall, but I never had too much trouble finding the next step. Thanks Magnus!
on 20. January 2023, 06:16 by KNT
Really fun, and I agree with your assessment of not too difficult as well. However, the hardest parts of the puzzle to me, surprisingly, were after the locations of the 9 boxes were determined, but still nothing too bad, and just a fun solve throughout. Thanks!
on 20. January 2023, 04:50 by Agent
A work of beauty! So many surprising and satisfying deductions, and the Fillomino geometry feels magical. This puzzle really does justice to the original, which was already insanely good.
on 19. January 2023, 23:47 by kjholt
Question: does a cell on the grid border count as an interior sudoku cell assuming it's surrounded orthogonally by either border or other sudoku cells?
----
No, an interior Sudoku cell must have other Sudoku cells on all four sides. The edge of the grid does not count. /Magnus
on 19. January 2023, 23:42 by Samish
Astonishing puzzle, immensely fun to solve!! The deconstruction works perfectly with your initial concept and I enjoyed this one even much more than the original. I agree on 4/5 even though it's long. Thanks a lot Magnus!
on 19. January 2023, 22:02 by Steven R
Sensational puzzle, thanks Magnus!
on 19. January 2023, 20:39 by Niverio
Absolutely fantastic puzzle! It's so fresh and so rewarding, filled to the brim with satisfying deductions!
on 19. January 2023, 19:36 by polar
I enjoyed this one even more than the original. Fabulous setting! Thanks Magnus :)
on 19. January 2023, 16:08 by MagnusJosefsson
This puzzle combines my Chaos FilloSudokumino ruleset with the Sudoku deconstruction concept invented by Jay Dyer. I think the result works very well and I hope you will enjoy it as well.
While quite a long puzzle and definitely harder than the original Chaos FilloSudokumino, there shouldn't be any really hard steps. Still, I would rate this as high end 4 stars difficulty and it will most likely be uprated to 5 stars difficulty in the end.
Good luck and I hope you will like the puzzle!
