Sudoku #m651

Sudoku game, level: Medium #651. This Sudoku have 27 given numbers (clues)..
Structure: 4 (2 pcs.), 8 (2 pcs.), 9 (2 pcs.), 6 (3 pcs.), 5 (3 pcs.), 1 (3 pcs.), 2 (3 pcs.), 7 (4 pcs.), 3 (5 pcs.), ∑27.


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