Sudoku #x879

Sudoku game, level: Expert #879. This Sudoku have 28 given numbers (clues)..
Structure: 7 (1 pcs.), 2 (1 pcs.), 6 (1 pcs.), 8 (2 pcs.), 5 (4 pcs.), 1 (4 pcs.), 9 (5 pcs.), 4 (5 pcs.), 3 (5 pcs.), ∑28.


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4
3
9
1
7
9
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4
8
8
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9
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3
6
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5
3
2
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