Class photo
(Published on 23. December 2022, 03:15 by simoons)
Place a number in every cell of the grid such that:
- There is a 9x9 subgrid that forms a valid standard sudoku with a knight constraint;*
- Disregarding the interior 7x7 area of the sudoku subgrid, the rest of the grid (including the 1-cell wide perimeter of the sudoku grid) forms a valid fillomino.**
* the 9 rows, 9 columns and 9 3x3 boxes contain all the digits from 1 to 9 once each. Two cells separated by a knight move in chess cannot contain the same number.
** Standard fillomino rules are as follows: a) Divide the grid into regions of orthogonally-connected cells and enter into each cell the size of its region; b) No two regions of the same size may share an edge.
fun fact: the green 3 and 5 are there only to make the solve humanly possible. Even without these, there is only one solution to the puzzle.
This is my first puzzle, please leave a comment to help me improve!
This puzzle was inspired by "Chaos FilloSudokumino" by Magnus Josefsson (Cracking The Cryptic)
Solution code: Row five of the sudoku grid (9 digits) e.g.: "123456789"
Comments
on 12. February 2024, 23:20 by Myxo
This was absolutely nuts, what an underrated gem of a puzzle! I highly recommend this, even if the difficulty is very high.
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Thanks for your kind comment :D Glad you liked it.
on 3. June 2023, 11:14 by Jubedu
Very nice puzzle. It is crazy that solves and the logic behind is very interesting.
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Happy to read that you found it interesting, thanks for the comment!
on 22. May 2023, 04:21 by SimplePurpleFrog
Pretty darn hard solid logic. You need wits, mine is slow.
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Yet, you did it! Thanks for your comment :D
on 16. May 2023, 12:24 by simoons
I added a CTC link (with solution)
on 25. December 2022, 00:50 by simoons
(I improved the links)
on 25. December 2022, 00:37 by simoons
I added a mention of the puzzle I took the ruleset from, thank you for the suggestion! (The only difference in ruleset is the knight constraint)
on 24. December 2022, 23:09 by Prutsbeest
Hi simoons, very nice puzzle! I've seen this ruleset/concept before though (don't remember the name of the puzzle), so I think it's a good idea to reference the original puzzle.
Anyway, you added a nice twist to it, very enjoyable, thanks! :)
on 23. December 2022, 19:15 by simoons
I added a link to f-puzzles. It is set with one big region, which is obviously not good for the puzzle. If you have advices on how to do that better, please tell me.
on 23. December 2022, 17:07 by simoons
Asking for feedback
