Sudoku #h803

Sudoku game, level: Hard #803. This Sudoku have 25 given numbers (clues)..
Structure: 2 (1 pcs.), 6 (2 pcs.), 7 (2 pcs.), 1 (2 pcs.), 5 (2 pcs.), 9 (4 pcs.), 8 (4 pcs.), 3 (4 pcs.), 4 (4 pcs.), ∑25.


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