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Normal sudoku rules apply. Digits along arrows must sum to the circled total. In dotted regions, digits don't repeat and sum to the indicated total. Cells separated by a chess knight's move must contain different digits.
Stealth
By noswald
Normal sudoku rules apply. Digits along arrows must sum to the circled total. In dotted regions, digits don't repeat and sum to the indicated total. Cells separated by a chess knight's move must contain different digits.