Rules:
Normal sudoku rules apply.
A digit in a cell with arrows equals the sum of all digits in "friendly cells" in those directions.
A cell is "friendly" if its digit is equal to the cell's Row, Column, and/or Box number.
Solve online:
Solution code: Column 9
on 14. January 2025, 10:38 by damo_89
Very tricky, this ruleset requires new ways of thinking and a lot of care!
on 13. January 2025, 16:14 by marcmees
great solving. thanks
on 13. January 2025, 14:49 by Flinty
Wonderful puzzle. Great ruleset. Thank you. :)