Tough Sudoku #10608 | Peak Sudoku

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This puzzle

#10608

Tough(63/100)
SE: 3.8
Clues: 25
Symmetry: Asymmetric

81 leftNo cell selected

1–9 writes into the selected cells.

Techniques in this puzzle5

Hidden Single Naked Single Pointing Pair Naked Pair Swordfish

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Tough Sudoku #10608 | Peak Sudoku