Normal sudoku rules apply.
Anti-Knight:Digits must not repeat in cells that are a chess knight's move apart.
Thermometers: Digits along thermometers must increase starting from the bulb end.
Arrows: The digits along each arrow must sum to the digit in the circled cell.
Solution code: row 8
on 25. November 2021, 17:26 by rictech
Very nice! I like the minimalism with the multiple rule sets
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