Sea Level Rise Sudoku
(Eingestellt am 31. März 2024, 18:58 Uhr von MagnusJosefsson)
Normal Sudoku rules apply.
The grid represents a landmass and the surrounding sea.
There is a global sea level set at an integer value between 1 and 9 (to be deduced).
Cells outside the Sudoku grid contain no digits and are flooded (ocean)
Any cell with a digit higher than or equal to the sea level is dry land
A cell with a digit lower than the sea level will be the flooded if and only if:
- It is orthogonally connected to the ocean (either directly or through an orthogonally connected path of other flooded cells), with no sea wall (given red border) blocking the connection.
Additionally, the landmass (region of dry land) must be orthogonally connected.
Clues:
- A clue in a flooded cell indicates the depth of the water
- A clue in a dry land cell indicates the minimum integer amount of global sea level rise needed to cause the cell to flood
Example:
You can try the example here:
Penpa+
The puzzle:
Link for solving online:
Penpa+
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Lösungscode: Row 1 followed by column 5.
Kommentare
am 11. September 2024, 06:38 Uhr von Silverstep
Unusual idea, delightful puzzle
am 4. April 2024, 15:37 Uhr von henrypijames
Exceptionally well designed multi-stage (and multi-dimensional, really) puzzle with an innovative and intriguing ruleset - hope to see more of it in the future, as I'm sure the ruleset has more logic to offer than this puzzle covers.
A word of advice for other solvers: Use not two colors (like the example), but three to mark the landscape - water, higher land, and basin (land below sea level, consider using orange as most below-sea-level basins in the world are desert). If you don't have multicolor, you might need two additional temporary colors - undetermined type of land (either higher or lower = yellow), undetermined type of low elevation (either water or basin = purple).
SudokuPad: https://sudokupad.app/dssh46xt2v
It's a bit nitpicky, but the rules should clarify that the given sea walls are the only ones to be had - that is, the solver is not allowed to add their own sea walls.
am 2. April 2024, 16:15 Uhr von Agent
Very creative ruleset and smooth ending!
am 1. April 2024, 10:30 Uhr von Tacosian
Superb puzzle. Thank you!
am 1. April 2024, 09:56 Uhr von Christounet
Wonderful ! A long awaited new puzzle from you. Glad you are back at setting puzzles for us :) Very original construction with an interesting thematic logic. The solve path is flooded with neat deductions. Thanks !
am 1. April 2024, 01:08 Uhr von RJBlarmo
Really interesting puzzle, the idea behind the land clues leads to some very cool logic. A very unique and challenging solving experience!
am 31. März 2024, 19:06 Uhr von Jesper
I tested this for Magnus. A really fun puzzle with some unusual deductions for a Sudoku!
