Diabolical Sudoku #10609 | Peak Sudoku

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This puzzle

#10609

Diabolical(95/100)
SE: 7.2
Clues: 28
Symmetry: Diagonal

81 leftNo cell selected

1–9 writes into the selected cells.

Techniques in this puzzle10

Naked Single Hidden Single Pointing Pair Claiming XY-Wing Unique Rectangle Skyscraper Naked Pair XY-Chain BUG+1

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Diabolical Sudoku #10609 | Peak Sudoku