Hard Sudoku #307468 | Peak Sudoku

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This puzzle

#307468

Hard(51/100)
SE: 3.2
Clues: 27
Symmetry: Vertical mirror

81 leftNo cell selected

1–9 writes into the selected cells.

Techniques in this puzzle4

Naked Single Hidden Single Pointing Pair Naked Quad

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Hard Sudoku #307468 | Peak Sudoku