Hard Sudoku #10131 | Peak Sudoku

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This puzzle

#10131

Hard(58/100)
SE: 3.4
Clues: 27
Symmetry: Horizontal mirror

81 leftNo cell selected

1–9 writes into the selected cells.

Techniques in this puzzle8

Hidden Single Naked Single Pointing Triple Claiming Naked Triple Pointing Pair Naked Quad Naked Pair

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Hard Sudoku #10131 | Peak Sudoku