Close Friends
(Published on 26. December 2021, 21:50 by Jay Dyer)
Close Friends
Rules:
- Normal sudoku rules apply.
- Each row, column, and box contains exactly 3 friendly cells (cells whose value equals the index of the row, column, or box containing cell).
- A clue in the corner of a cell indicates the number of non-friendly cells visible from the marked cell along its row and column, including the marked cell; friendly cells block the view, and the marked cell cannot be friendly.
Solution code: Rows 3 and 6
Last changed on on 26. December 2021, 21:51
Solved by Jesper, MagnusJosefsson, ryagami, mackerel, marcmees, Steven R, dogfarts, kublai, Bankey, Vebby, Chishiri, Frutlop, codewizard, karen_birgitta, DarthParadox, SudokuHero
Comments
on 14. January 2022, 16:55 by Bankey
Fascinating logic ! Thanks, @Jay Dyer :-)
on 27. December 2021, 19:25 by Steven R
Very nice!
on 27. December 2021, 17:34 by marcmees
nice friendly variant. thanks.
