Sudoku #h701

Sudoku game, level: Hard #701. This Sudoku have 28 given numbers (clues)..
Structure: 7 (1 pcs.), 1 (1 pcs.), 9 (1 pcs.), 4 (3 pcs.), 6 (3 pcs.), 2 (4 pcs.), 3 (5 pcs.), 5 (5 pcs.), 8 (5 pcs.), ∑28.


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