Sudoku #x611

Sudoku game, level: Expert #611. This Sudoku have 30 given numbers (clues)..
Structure: 2 (1 pcs.), 1 (2 pcs.), 4 (2 pcs.), 5 (2 pcs.), 3 (3 pcs.), 6 (3 pcs.), 7 (5 pcs.), 9 (5 pcs.), 8 (7 pcs.), ∑30.


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