Sudoku #h801

Sudoku game, level: Hard #801. This Sudoku have 27 given numbers (clues)..
Structure: 2 (1 pcs.), 1 (2 pcs.), 5 (2 pcs.), 7 (2 pcs.), 3 (3 pcs.), 4 (3 pcs.), 6 (4 pcs.), 9 (4 pcs.), 8 (6 pcs.), ∑27.


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