Sudoku #m798

Sudoku game, level: Medium #798. This Sudoku have 25 given numbers (clues)..
Structure: 4 (1 pcs.), 3 (1 pcs.), 7 (3 pcs.), 9 (3 pcs.), 6 (3 pcs.), 5 (3 pcs.), 2 (3 pcs.), 8 (4 pcs.), 1 (4 pcs.), ∑25.


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