Diabolical Sudoku #21026 | Peak Sudoku

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81 leftNo cell selected

Puzzle: #21026
Difficulty: Diabolical(95/100)SE 7.2
Clues: 25
Symmetry: 180° rotational

1–9 writes into the selected cells.

Techniques in this puzzle6

Naked Single×11 Hidden Single×5 Pointing Pair×1 Claiming×1 Naked Triple×1 XY-Chain×2

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Diabolical Sudoku #21026 | Peak Sudoku