Tricky Sudoku #10209 | Peak Sudoku

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This puzzle

#10209

Tricky(43/100)
SE: 2.8
Clues: 33
Symmetry: Double mirror

81 leftNo cell selected

1–9 writes into the selected cells.

Techniques in this puzzle4

Naked Single Hidden Single Pointing Pair Claiming

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Tricky Sudoku #10209 | Peak Sudoku