Top Right Boi (Numbered Region Chaos Construction)
(Published on 23. June 2025, 03:57 by MaizeGator)
Inspired by sfushidahardy’s interpretation of “Top Right Boi” as a region-building constraint, and further inspired by an awesome ruleset invented (?) by Jesper and later executed brilliantly by tallcat, I bring to you the next installment in the Top Right Boi series. Enjoy!
- Chaos Construction: Divide the grid into nine regions consisting of nine connected cells each. Place the digits 1-9 into every row, column, and region.
- Top Right Boi: Each region contains a “Top Right Boi” cell. The region may not contain any cells in columns to the right of the Top Right Boi, nor may it contain any cells in rows above the Top Right Boi. The digit in the Top Right Boi is also the region number.
- Arrows: A digit X in a cell with an arrow lies in region N, and indicates that the cell X steps away in the arrow’s direction is located in region (N+1). (For clarity, there is no "wrapping", i.e. cells in region 9 may not point at region 1.)
Solution code: Row 8, with "-" for region borders (excluding grid borders)
Comments
on 12. July 2025, 19:45 by Agent
Cool puzzle! I especially enjoyed how the last couple regions worked.
on 8. July 2025, 23:52 by Snue
Amazing puzzle - thank you for setting it :)
on 30. June 2025, 20:14 by QuiltyAsCharged
Brilliant! It's incredible how the clues are set so perfectly to guide the solver
on 30. June 2025, 00:19 by tallcat
Very nice twist on the Numbered Region rules - enjoyed it a lot!
on 29. June 2025, 02:00 by askaksaksask
Quite fun! Very cool extension of the region pointing, with a fun meme-y flair... enjoyed the top right implications and how this all shook out in the solve. Thank you!
on 27. June 2025, 11:50 by twobear
Clarifying question: Can a cell in Region 9 contains an arrow?
-no, there is no “looping”, so region 9 is indeed without arrows
-cool, thank you!
on 26. June 2025, 19:50 by henrypijames
Love it when the break-in is a tutorial for the ruleset.
on 24. June 2025, 14:54 by Christounet
Great use of the constraint! Thanks :)
on 24. June 2025, 10:44 by Snookerfan
Excellent puzzle! I got stuck for a while for not using the top boi logic to the full extent. Very smooth after I did. Thank you
on 23. June 2025, 20:19 by aqjhs
boi was incredibly powerful :D
on 23. June 2025, 13:56 by Piatato
Great fun, thanks! :)
on 23. June 2025, 13:51 by marcmees
Very nice construction logic. Thanks
on 23. June 2025, 10:19 by Jesper
Great puzzle, enjoyed it a lot, thanks!
on 23. June 2025, 04:05 by sfushidahardy
Lovely puzzle! Such a variety of logic throughout, and the sudoku at the end is smooth too.
