Sudoku #m407

Sudoku game, level: Medium #407. This Sudoku have 27 given numbers (clues)..
Structure: 2 (2 pcs.), 5 (2 pcs.), 6 (2 pcs.), 1 (3 pcs.), 3 (3 pcs.), 7 (3 pcs.), 9 (3 pcs.), 4 (4 pcs.), 8 (5 pcs.), ∑27.


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