Sudoku #x635

Sudoku game, level: Expert #635. This Sudoku have 30 given numbers (clues)..
Structure: 7 (1 pcs.), 1 (2 pcs.), 4 (2 pcs.), 9 (3 pcs.), 2 (3 pcs.), 5 (4 pcs.), 6 (4 pcs.), 3 (4 pcs.), 8 (7 pcs.), ∑30.


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4
2
8
6
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3
9
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8
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8
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9
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5
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8
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