Sudoku #h475

Sudoku game, level: Hard #475. This Sudoku have 28 given numbers (clues)..
Structure: 3 (1 pcs.), 1 (2 pcs.), 4 (2 pcs.), 6 (3 pcs.), 8 (3 pcs.), 5 (3 pcs.), 7 (4 pcs.), 9 (5 pcs.), 2 (5 pcs.), ∑28.


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