Expert Sudoku #187665 | Peak Sudoku

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#187665

Expert(76/100)
SE: 4.5
Clues: 26
Symmetry: 180° rotational

81 leftNo cell selected

1–9 writes into the selected cells.

Techniques in this puzzle6

Hidden Single Naked Single Pointing Pair Claiming Naked Pair W-Wing

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Expert Sudoku #187665 | Peak Sudoku