Sudoku #m142

Sudoku game, level: Medium #142. This Sudoku have 27 given numbers (clues)..
Structure: 8 (1 pcs.), 2 (2 pcs.), 5 (3 pcs.), 6 (3 pcs.), 7 (3 pcs.), 9 (3 pcs.), 1 (4 pcs.), 3 (4 pcs.), 4 (4 pcs.), ∑27.


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