Sudoku #x155

Sudoku game, level: Expert #155. This Sudoku have 28 given numbers (clues)..
Structure: 8 (1 pcs.), 7 (2 pcs.), 3 (2 pcs.), 1 (3 pcs.), 4 (3 pcs.), 5 (3 pcs.), 6 (3 pcs.), 9 (5 pcs.), 2 (6 pcs.), ∑28.


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5
9
3
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9
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9
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3
9
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4
7
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6
9
6
2
4
8
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