Sudoku #m544

Sudoku game, level: Medium #544. This Sudoku have 27 given numbers (clues)..
Structure: 1 (2 pcs.), 8 (2 pcs.), 2 (3 pcs.), 3 (3 pcs.), 5 (3 pcs.), 6 (3 pcs.), 7 (3 pcs.), 9 (3 pcs.), 4 (5 pcs.), ∑27.


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