Hard Sudoku #16023 | Peak Sudoku

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81 leftNo cell selected

Puzzle: #16023
Difficulty: Hard(52/100)SE 3.2
Clues: 33
Symmetry: Anti-diagonal

1–9 writes into the selected cells.

Techniques in this puzzle6

Naked Single×11 Hidden Single×5 Pointing Pair×1 Claiming×1 Naked Pair×1 Naked Triple×1

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Hard Sudoku #16023 | Peak Sudoku