Altitude Map
(Published on 28. July 2025, 20:23 by Jeet Sampat)
Rules:
Normal Sudoku rules apply.
Each cell is located at a certain 'height' (independent of the digit it contains). Cells at height x must only share an edge/corner with cells at height x-1, x or x+1.
A digit at height x hides other digits at height x or below in the line of sight. Clues outside the grid with arrows count the sum of all visible digits in its line of sight. Clues outside the grid without arrows count the number of visible cells in its line of sight.
Try the puzzle on Sudokupad.
Example demonstrating the rules (corner pencil marks denote the height of the cell):
Solution code: Row 4 and Column 7; 18 digits, no spaces.
Comments
on 31. July 2025, 05:13 by Briks
Loved this one.
on 29. July 2025, 17:05 by PierreTombal
Very nice. A bit of a challenge to properly keep track of the height values and what does and does not count for the sums.
