Diabolical Sudoku #454100 | Peak Sudoku

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81 leftNo cell selected

Puzzle: #454100
Difficulty: Diabolical(93/100)SE 6.8
Clues: 25
Symmetry: Vertical mirror

1–9 writes into the selected cells.

Techniques in this puzzle7

Naked Single×12 Hidden Single×7 Pointing Pair×1 Claiming×1 Naked Pair×1 X-Wing×1 XY-Chain×1

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Diabolical Sudoku #454100 | Peak Sudoku