Friendly Sum Lines 2
(Published on 8. April 2025, 05:09 by Md88keys)
Friendly Sum Lines 2
by Md88keys
Play on SudokuPad
Normal Sudoku Rules Apply.
Red Friendly Sum Lines: All digits on red lines contribute to one or more Friendly Sums (overlap allowed).
Friendly sums may be one, two, or three cells orthogonally connected by a red line.
Friendly sums equal the value of their row, column, and/or box.
All cells in a Friendly Sum will live within the boundaries of that row, column or box.
*All lines are given.
*Negative constraint: cells not visited by red lines will not contribute to a Friendly Sum (alone or in combination with any orthogonally adjacent cells, including cells on a line).
No guessing is required.
Orthogonally connected cells: Diagram
in the image below, 4 is not orthogonally connected to 1, 2, or 5.
1, 2, 3, and 5 are orthogonally connected by a red line, and could together create friendly sums such as 3, 5, 6, or 8.
Solution code: Column 9 top to bottom
Comments
on 8. April 2025, 16:58 by Md88keys
Fixed line error
on 8. April 2025, 14:44 by StefanSch
There is a red line missing---fixed thanks!
on 8. April 2025, 08:06 by CuriousRat
It appears there is a line missing--fixed thanks!
