Rhomboid Chaos
(Published on 4. December 2024, 22:00 by Sotehr)
Sudoku-ish: Rows, columns and regions can have no more than one each of the digits 1-9.
Arrow: The value of a cell with an arrow counts the number of unique regions seen in the direction indicated by the arrow, including its own region. Multiple arrow cells count to the same number of unique regions in each direction, i.e. they are not cumulative.
Square: The value of a cell with a square counts the number of unique regions seen in the surrounding 3x3 area, including its own region.
Outside Clues: Values outside the grid are the sum of the missing digits from that respective column.
NOTES
This was set for Scojo's Setting Saturday Prompt, this week chosen by Ratfinkz: Non-Rectangular, where the grid cannot be rectangular.
Solution code: Row 4, left to right with dashes to indicate region borders.
Comments
on 22. February 2025, 22:05 by MCMCHammer
Really enjoyable solve, quite a few tricky steps in amongst it
on 13. December 2024, 14:21 by Christounet
Original setup and fun solve ! Thanks :)
on 12. December 2024, 20:48 by softie
What a puzzle! I had to backtrack a couple times when I'd broken it, relying on the solution checker to identify when I had made a wrong leap of logic. I still feel like finishing was a real accomplishment!
on 7. December 2024, 15:24 by madhupt
Very smooth! It is so easy to make a mistake while counting the regions but it all fit together extremely nicely. Thanks for sharing.
on 6. December 2024, 22:17 by HumanBirdsong
That was difficult, but exceptionally beautiful. The diagonal geometries were very interesting to tinker with, and then the sudoku at the end was a gorgeous finale. Bravo!
on 6. December 2024, 20:23 by madhupt
Very smooth! It is so easy to make a mistake while counting the regions but it all fit together extremely nicely. Thanks for sharing.
on 6. December 2024, 05:53 by xxGRABOIDxx
i liked how the arrows proved as a goal and source of knowledge. (Especially the down arrow of R1C13)
on 6. December 2024, 03:31 by dennischen
Very interesting puzzle! Liked it a lot.
on 5. December 2024, 22:08 by pookster
Really fun puzzle! Thanks for sharing it!
on 5. December 2024, 19:02 by Franjo
Very unusual, but surely a great puzzle! Thank you for creating and sharing.
on 5. December 2024, 08:10 by askaksaksask
The geometry here is wonderful!
on 5. December 2024, 00:11 by Andrewmi3
Very nice! A steady flow of logical deductions. I especially enjoyed the effect of the unique grid on the chaotic regions.
