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8888882322277
Crumbling Fortress
 by Louis
- Normal sudoku rules apply.
- Normal killer sudoku rules apply.
- All cells, except for 1's and 9's, must have a larger orthogonal neighbour and a smaller orthogonal neighbour.
Created by Sven Neumann (©) | Support me on Patreon

"Crumbling Fortress"

By Louis

- Normal sudoku rules apply.
- Normal killer sudoku rules apply.
- All cells, except for 1's and 9's, must have a larger orthogonal neighbour and a smaller orthogonal neighbour.

Note: This puzzle does not have solution checking.