What do arrows do? They point! Arrows in Sudoku puzzles don’t often point anywhere in particular, though. They just point out that some puzzles do require arithmetic skills, to wit: summing up a series of single digits to a single-digit total.
Rules:
Normal Sudoku rules apply.
Digits on arrows sum to the value in the attached circle.
Estimated difficulty: 3 out of 5
Spoiler-filled walkthrough
