Sudoku #m144

Sudoku game, level: Medium #144. This Sudoku have 27 given numbers (clues)..
Structure: 3 (1 pcs.), 7 (2 pcs.), 4 (3 pcs.), 6 (3 pcs.), 8 (3 pcs.), 9 (3 pcs.), 1 (4 pcs.), 2 (4 pcs.), 5 (4 pcs.), ∑27.


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