Sudoku #x199

Sudoku game, level: Expert #199. This Sudoku have 28 given numbers (clues)..
Structure: 8 (1 pcs.), 2 (2 pcs.), 7 (3 pcs.), 6 (3 pcs.), 4 (3 pcs.), 3 (3 pcs.), 9 (3 pcs.), 1 (3 pcs.), 5 (7 pcs.), ∑28.


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9
5
2
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7
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8
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9
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7
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5
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6
9
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