1. Normal Sudoku rules apply.
2. Digits along an arrow must sum to the digit in the arrow's circle.
3. Cells with inward facing arrows are the minimum of orthogonally connected cells. (R4C1 and R1C4)
Solution code: Row 9, Column 7
on 13. May 2022, 22:10 by thanos1011
Fixed f-puzzles link
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