Hakata (Shikaku Chaos Construction)
(Published on 29. July 2024, 07:53 by sfushidahardy)
As a child, I frequently visited Hakata in Fukuoka, Japan. The rectangular partition of the grid uncovered when solving this puzzle reminded me of the orthogonal roads of Hakata. Thank you MaizeGator for extensive testing and feedback!
- Chaos Construction: divide the grid into regions, each consisting of orthogonally connected cells, and fill each row, column, and region with the digits 1 to 9 once each.
- Shikaku variant: the grid is completely divided into rectangles of cells, each belonging entirely to a region. Each rectangle contains a size cell whose digit indicates the size of the rectangle (number of cells). No two rectangles of the same size may be orthogonally adjacent, regardless of their shapes.
- Corner clues: every cell with a corner clue is the size cell of its rectangle, but not every size cell is marked with a corner clue. The corner clue, if given, indicates the sum of the digits within the rectangle.
I've added a partially solved 6x6 version of this ruleset below to highlight the rules.
Solution code: The digits in row 5 with a forward-slash at region boundaries. For example, 123/45/6789.
Comments
on 3. October 2024, 10:26 by Christounet
Very nice. Easier than expected and interesting. Thanks :)
on 25. September 2024, 18:39 by The Book Wyrm
Fun puzzle, and generally very smooth, though there was one section that felt quite a bit harder than the rest (might have missed somethign there though).
on 19. August 2024, 02:13 by Tacosian
Great!
on 11. August 2024, 00:15 by Bankey
Lovely puzzle. Thanks, @ sfushidahardy :).
on 3. August 2024, 18:23 by wenchang
Nice, while it is much harder than 3 star for me. Spoiler alert! https://youtu.be/8cGMokshA_k
on 31. July 2024, 14:09 by sfushidahardy
Thanked MaizeGator for help
on 30. July 2024, 11:16 by Franjo
Very nice and approachable CC with some fresh deductions. Thank you so much for creating and sharing this gem.
on 30. July 2024, 09:56 by Snookerfan
Beautiful ruleset and a great puzzle to accompany that! Thank you
on 30. July 2024, 03:48 by yttrio
Very fun and smooth puzzle with lots of great implications to be deduced from the rule set!
on 29. July 2024, 19:14 by KNT
smooth CC! thanks
on 29. July 2024, 19:08 by someguy209
Interesting ruleset that has plenty of easy to understand but hard to find implications, leading to this great puzzle!
on 29. July 2024, 15:44 by MaizeGator
Awesome puzzle with a very enjoyable difficulty. The different layers of the ruleset fit seamlessly with one another.
on 29. July 2024, 13:29 by marcmees
very nice. thanks
