Hard Sudoku #377651 | Peak Sudoku

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This puzzle

#377651

Hard(55/100)
SE: 3.2
Clues: 28
Symmetry: Vertical mirror

81 leftNo cell selected

1–9 writes into the selected cells.

Techniques in this puzzle6

Naked Single Hidden Single Pointing Pair Claiming Naked Triple X-Wing

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Hard Sudoku #377651 | Peak Sudoku