Tough Sudoku #154229 | Peak Sudoku

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81 leftNo cell selected

Puzzle: #154229
Difficulty: Tough(67/100)SE 4
Clues: 29
Symmetry: Vertical mirror

1–9 writes into the selected cells.

Techniques in this puzzle6

Naked Single×12 Hidden Single×3 Pointing Pair×2 Claiming×1 Naked Pair×1 Skyscraper×1

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Tough Sudoku #154229 | Peak Sudoku