Chaos Construction: Numbered Regions #1
(Published on 24. September 2022, 15:15 by Jesper)
Rules
Divide the grid into regions, each consisting of nine orthogonally connected cells. Each row, column and region must contain the digits 1 to 9 once each.
The digit in the top-left cell of a region (its leftmost cell in its highest row) is its region number. All region numbers are different.
If a cell with the digit X in a region with the number N contains an arrow, then the cell X steps away in the indicated direction belongs to the region numbered N+1.
Not all possible arrows are given.
Example of a valid solution grid (6x6)
The region numbers are marked with dashed circles. This example is not a real puzzle, but rather just an illustration.
The puzzle follows:
Penpa+: Chaos Construction: Numbered Regions #1
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Solution code: Row 8 followed by row 9
Comments
on 7. July 2024, 16:46 by The Book Wyrm
Very fun and smooth puzzle. Nice simple ruleset, but with some fun interactions.
Not too tricky either.
on 31. October 2023, 14:15 by wullemuus
Thanks to Yann who created a simpler puzzle with this ruleset and recommended this so I was able to try it myself. It's so brilliant constructed that it solved straightforward. For that I won't rate it with 5 stars. But anyway- pure pleasure!
on 16. June 2023, 12:23 by Yann
Awesome sudoku, it's one of the first ones I ever solved, but I o,ly found my solution today ! It's incredibly fun, that opening sequence is very clever, and I found the irregular sudoku at the end quite miraculous. This is also the puzzle that inspired me to set sudokus (though only 6x6s), and I actually set a 6x6 one with these rules. It could maybe be a good example puzzle for this one, it's not too hard. Anyway, thanks for setting this gem.
on 10. May 2023, 01:33 by dennischen
Every deduction was really fun. Took me an hour to solve, so it's quite approachable too.
on 23. February 2023, 02:47 by wooferzfg
Awesome puzzle! I loved the region building in the opening and mid solve. The Sudoku at the end was actually harder than most of the stuff in the beginning for us.
on 11. January 2023, 22:58 by FmrSudokuPhilosopher
Fantastic philosophy of sudoku in a puzzle that will force you to be a philosopher
on 11. January 2023, 21:49 by akial
Fantastic and really fun puzzle!
on 11. January 2023, 15:38 by ddx2407
Absolutely wonderful!
on 11. January 2023, 11:54 by Klausku
Really brilliant logic. But very hard for me. Took me 3 hours. Thanks
on 11. January 2023, 03:11 by SimplePurpleFrog
Wow! A hard, but really fun puzzle. Incredible logic!
on 8. October 2022, 01:37 by filuta
absolutely great!
on 8. October 2022, 00:00 by Agent
Wonderful puzzle! Very enjoyable.
on 27. September 2022, 01:04 by Piatato
Superb puzzle! Great fun throughout :-)
on 26. September 2022, 22:56 by ONeill
Brilliant construction, can’t wait for #2 :)
on 26. September 2022, 22:19 by wenchang
Very nice but tricky! Spoiler alert!
https://youtu.be/K2UFolYQ2U4
on 26. September 2022, 13:05 by Qodec
Incredible. So much you can do with this ruleset, and all united in a single puzzle. Not even that hard, either!
on 26. September 2022, 12:09 by Christounet
And yet another masterpiece !!
A chaos construction chiseled like a rare diamond. Looking forward #2 and #3 !!! Thanks ++
on 26. September 2022, 08:44 by BloodbuzzCorio
Great puzzle Jesper. I found it fairly tricky but extremely enjoyable!
on 26. September 2022, 05:30 by irq
What an absolute delight. Thank you so much for this puzzle!
on 25. September 2022, 19:39 by lerroyy
Very nice puzzle! thanks
on 25. September 2022, 14:30 by marcmees
I can confirm the score of 100% satisfaction. thanks.
on 25. September 2022, 11:55 by polar
CC's with arrowed regions are always my fave and this one certainly didn't disappoint - the usual Jesper smoothness that I've come to adore :) Looking forward to #2!
on 25. September 2022, 11:15 by Jesper
Thanks everyone for the lovely comments!
on 25. September 2022, 04:57 by Rivz
That was really nice bro
on 25. September 2022, 00:25 by RJBlarmo
Cool ruleset and great execution! Pretty tricky at times for me.
on 25. September 2022, 00:08 by Niverio
It broke my mind initially, but once I grasped the ruleset, it was pretty fun! The ending sudoku was kinda tricky tho :)
on 24. September 2022, 23:19 by Genomico
Brilliant idea, brilliant construction. Thank you for creating this puzzle!
on 24. September 2022, 22:08 by Al Fresco
Great setting. It gave me a thorough mental work out. Thank you Jesper
on 24. September 2022, 21:38 by PrimeWeasel
When I started reading the rules I had an immediate flashback to filuta's friends in unknown lands, but you came up with something less time consuming! Very nice!
on 24. September 2022, 21:18 by thoughtbyte
Wonderful puzzle with some really beautiful deductions throughout, as always. Thanks Jesper!
on 24. September 2022, 21:06 by TotallyNormalCat
I liked the interactions between ruleset and region building in this one :) Thanks Jesper
on 24. September 2022, 19:55 by Vebby
A pleasure testing this, it was amazing to see how quickly you implemented the top-left cell idea and created this beautiful puzzle. Thanks Jesper! :)
on 24. September 2022, 19:47 by MagnusJosefsson
I tested this for Jesper and found it to be a great chaos construction puzzle with a fun new twist. It has a smooth path and some really nice not-too-difficult region geometry logic.
on 24. September 2022, 19:17 by KNT
Awesome CC with some genuine surprises along the way!
... and I hope you aren't teasing me with the "#1"
EDIT @KNT: I wouldn't do that, would I? ;) Actually, there is another puzzle that I have completed, but I am on the fence regarding publishing it, since tester feedback was that it is significantly harder than I anticipated (and wanted). I am also playing with some ideas for a further puzzle in the series. So there are two potential paths to a number #2, but nothing is certain.
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EDIT @Jesper: So we're getting a #2 and a #3? Great!
on 24. September 2022, 18:04 by Leonard Hal
Great construction idea! Thanks.
on 24. September 2022, 17:10 by Steven R
Outstanding!
on 24. September 2022, 16:31 by Jesper
Many thanks to Vebby for helping me to tweak this ruleset with some good ideas!
