Sudoku #x47

Sudoku game, level: Expert #47. This Sudoku have 29 given numbers (clues)..
Structure: 7 (1 pcs.), 6 (2 pcs.), 1 (3 pcs.), 2 (3 pcs.), 3 (3 pcs.), 5 (3 pcs.), 8 (4 pcs.), 9 (4 pcs.), 4 (6 pcs.), ∑29.


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