Expert Sudoku #180239 | Peak Sudoku

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81 leftNo cell selected

Puzzle: #180239
Difficulty: Expert(71/100)SE 4.4
Clues: 28
Symmetry: Vertical mirror

1–9 writes into the selected cells.

Techniques in this puzzle5

Naked Single×12 Hidden Single×1 Pointing Pair×1 Naked Triple×1 XYZ-Wing×1

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Expert Sudoku #180239 | Peak Sudoku