Sudoku #h717

Sudoku game, level: Hard #717. This Sudoku have 29 given numbers (clues)..
Structure: 1 (2 pcs.), 7 (2 pcs.), 8 (2 pcs.), 2 (2 pcs.), 6 (3 pcs.), 5 (4 pcs.), 3 (4 pcs.), 9 (5 pcs.), 4 (5 pcs.), ∑29.


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8
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3
7
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