Tricky Sudoku #219837 | Peak Sudoku

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This puzzle

#219837

Tricky(50/100)
SE: 3
Clues: 25
Symmetry: Vertical mirror

81 leftNo cell selected

1–9 writes into the selected cells.

Techniques in this puzzle6

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

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Tricky Sudoku #219837 | Peak Sudoku