Guadalquivir
(Published on 11. April 2026, 22:33 by Xenonetix)
• Normal Sudoku Rules apply.
• There are TWO one-cell wide orthogonal 'rivers' snaking without branching or touching themselves orthogonally (but may touch diagonally). Digits along 'rivers' differ by at least 5 (German Whispers). All remaining cells are 'land'. 'Fish' indicate 'river' cells.
• 'River Exits' are to be determined, and always at the puzzle's edges.
• 'Bridges' only cross single 'river' cells, and are the product of the two adjacent 'land' cells at each end of the 'bridge' (e.g. 3,9,3). Diagonal 'bridges' only cross 'river' corners (without cutting the corner).
• Dynamic Fog: Placing a correct digit will clear fog in its cell, and may also clear fog in other cells.
Here's an example to demonstrate the rules:
Hope you enjoy! 😄 - Any feedback or comments welcome!
Solution code: Column 2 (top to bottom) with dashes for river borders. (e.g. 123-4-56-789)
Comments
on 12. April 2026, 18:09 by Snookerfan
Very nice! It took me a while to properly understand the bridge rule about not cutting the corner. Reading rules is not my strength anyways. Thanks
on 12. April 2026, 03:49 by Nylimb
Very nice! I found this to be mostly easy, but with one tricky step that took me a long time to spot.
