Sudoku #x913

Sudoku game, level: Expert #913. This Sudoku have 20 given numbers (clues)..
Structure: 7 (1 pcs.), 8 (2 pcs.), 9 (2 pcs.), 1 (2 pcs.), 5 (2 pcs.), 3 (2 pcs.), 4 (2 pcs.), 6 (3 pcs.), 2 (4 pcs.), ∑20.


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9
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8
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2
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8
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9
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