Diabolical Sudoku #16806 | Peak Sudoku

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#16806

Diabolical(92/100)
SE: 7.1
Clues: 29
Symmetry: Vertical mirror

81 leftNo cell selected

1–9 writes into the selected cells.

Techniques in this puzzle6

Naked Single Hidden Single Pointing Pair ALS Chain X-Wing Skyscraper

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Diabolical Sudoku #16806 | Peak Sudoku