Extreme Sudoku #10194 | Peak Sudoku

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This puzzle

#10194

Extreme(85/100)
SE: 5.5
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 Skyscraper Naked Pair XY-Wing XY-Chain Finned X-Wing BUG+1

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Extreme Sudoku #10194 | Peak Sudoku