Staying Connected
(Published yesterday, 08:00 by Kaktuslav)
Thanks to the testers from the CTC Discord server for their invaluable feedback and improvements!
This is a Fog of War puzzle. You can play it on SudokuPad: https://sudokupad.app/ynhktktjex
Rules:
- Normal Sudoku rules apply.
- Shading: Shade some cells in the grid so that no 2×2 square is entirely shaded or entirely unshaded.
All unshaded cells must form a single orthogonally connected region (i.e., any two unshaded cells can be joined by a path of unshaded cells moving only between cells that share a side).
All shaded cells must form a single diagonally connected region (i.e., any two shaded cells can be joined by a path of shaded cells moving only between cells that share exactly one corner).
- White lines: A digit on a white line indicates the total number of cells in the same shading seen in all four orthogonal directions, including itself.
- Shading sum lines: Gray lines act as region sum lines with respect to the two regions (shaded and unshaded): changes of shading divide the line into segments of equal sums (these sums may differ between lines). NB If a line lies entirely within one region, it serves only a decorative purpose.
- Dynamic fog of war: The grid is partially covered in fog. Entering correct digits may (but does not have to) clear fog somewhere in the grid. No guessing is required.
Solution code: Row 9
Last changed on -
Solved by Aaravos18, SmartSlon, MixedMathialArts, SKORP17, jinkela114514, kublai, maniacaljackal, IcyFruit, Franjo, Elliott810, jkuo7
Comments
today, 06:36 by Elliott810
Brilliant puzzle! Thank you:)