Diabolical Sudoku #451647 | Peak Sudoku

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This puzzle

#451647

Diabolical(92/100)
SE: 6.4
Clues: 26
Symmetry: 180° rotational

81 leftNo cell selected

1–9 writes into the selected cells.

Techniques in this puzzle7

Naked Single Hidden Single Pointing Pair Naked Pair XY-Chain Claiming XYZ-Wing

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Diabolical Sudoku #451647 | Peak Sudoku