Floodwaters
(Published on 9. July 2022, 00:45 by Jay Dyer)
Rules
- Normal sudoku rules apply.
- Within the grid is a single orthogonally connected region of "flooded" cells. Digits in flooded cells must all be less than N, where the value of N must be determined, and digits in any non-flooded cell orthogonally adjacent to a flooded cell must be greater than or equal to N. Digits less than N may be non-flooded if they are separated from the main flooded region.
- Circles are flooded and squares are non-flooded. The digit in a circle or square gives the total number of cells of the same type visible horizontally or vertically from that cell, including the cell itself (i.e. the number of cells visible in the two directions combined). Flooded cells block the view of unflooded cells, and vice versa. All circles and squares are given.
Solution code: Row 2 and column 8
Comments
on 2. May 2024, 22:35 by Nell Gwyn
Cool puzzle! Reminds me of the game "Creeper World!"
on 24. June 2023, 04:51 by cmb
Undiluted fun!
on 21. June 2023, 15:01 by OldCaptainWZJ
Incredibly fun rule set and setting, loved all the implications and deductions.
on 12. June 2023, 00:58 by codewizard
Lovely! Took a while to get my head around the rules, but once you get them they seem natural and obvious, as usual with great rulesets. Cheers Jay!
on 6. June 2023, 00:35 by Myxo
Sweet!
on 18. September 2022, 03:23 by SHERAX
As Always Out Of The Box Construction. So Out Of The Box Logic Needed To Solve This. One Of My Favourites.
on 24. July 2022, 06:45 by Nordy
Very nice geometry! The opening logic was quite elusive to me, but once found was elegantly straightforward. Thanks!
on 14. July 2022, 20:05 by Bankey
Brilliant puzzle. Thanks, @ Jay Dyer :)
on 11. July 2022, 22:11 by Jay Dyer
Added a bit of clarification to the rules.
on 11. July 2022, 12:41 by peacherwu2
Clarification needed: "Digit in a circle or square gives the total number of cells of the same type visible horizontally or vertically" means two directions combined or either one of the two directions?
JD: It means the two directions combined.
on 10. July 2022, 23:38 by Christounet
Nice puzzle ! Original idea with a good flow and a lovely flood in the end when all the mam is colored blue and green. Thanks.
on 10. July 2022, 20:19 by prodigis
That was lovely and so fun to solve!
on 10. July 2022, 19:57 by Snookerfan
Great puzzle! Fantastic logic and nice flow.
on 10. July 2022, 18:01 by Phistomefel
Very enjoyable puzzle and great fun to discover the logic. Thank you very much for this lovely idea and puzzle, Jay Dyer! :)
on 10. July 2022, 14:36 by Snookerfan
Great puzzle! Fantastic logic and nice flow.
on 10. July 2022, 01:08 by randomra
Very nice and smooth solve after my head accepted that there can be low unflooded cells.
on 9. July 2022, 19:47 by twobear
Very nice puzzle and interesting rule set. Thank you!
on 9. July 2022, 15:56 by Jesper
Very nice, thanks!
on 9. July 2022, 12:02 by JayForty
Great puzzle, very smooth and enjoyable solve. Thank you!
