Sudoku #x607

Sudoku game, level: Expert #607. This Sudoku have 29 given numbers (clues)..
Structure: 6 (2 pcs.), 9 (2 pcs.), 1 (3 pcs.), 3 (3 pcs.), 7 (3 pcs.), 8 (4 pcs.), 5 (4 pcs.), 2 (4 pcs.), 4 (4 pcs.), ∑29.


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