Sudoku #m319

Sudoku game, level: Medium #319. This Sudoku have 27 given numbers (clues)..
Structure: 2 (1 pcs.), 5 (1 pcs.), 8 (3 pcs.), 1 (3 pcs.), 9 (3 pcs.), 7 (4 pcs.), 6 (4 pcs.), 4 (4 pcs.), 3 (4 pcs.), ∑27.


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