Friendlynori
(Published on 16. July 2024, 01:02 by Calesch)
Rules:
9x9 Irregular sudoku rules apply: place the digits 1-9 once each in every row, column, and outlined 9-cell region.
Norinori: Shade some cells so that each shaded cell is orthogonally adjacent to exactly 1 other shaded cell (i.e. shaded cells form 1x2 dominoes which do not touch orthogonally).
Each region must contain exactly 2 shaded cells (which may or may not be in the same domino).
Each shaded cell must be 'friendly', meaning its digit matches its row or column number (numbered 1-9 top to bottom/left to right).
The digit in a cell with 1 or more arrows indicates the total number of shaded cells in all given directions combined.
Solution code: Unshaded digits in row 8
Last changed on on 8. August 2024, 05:53
Solved by Steven R, yttrio, dBass, han233ing, pillowss, sorryimLate, Andrewsarchus, jkuo7
Comments
Last changed on 5. August 2024, 12:16
on 5. August 2024, 12:15 by han233ing
Excellent! However, it's a pity it took me a long time to realize the role 18 shaded cells played in this puzzle.
on 16. July 2024, 05:15 by yttrio
Fantastic puzzle! After a good while trying to start the puzzle, I was asking myself how this could possibly be solvable. It took some time to make the key epiphanies required to really get started, and everything somehow just fell into place from there!
on 16. July 2024, 02:01 by Steven R
Excellent puzzle! Thanks :)
