Sudoku #m626

Sudoku game, level: Medium #626. This Sudoku have 23 given numbers (clues)..
Structure: 1 (2 pcs.), 3 (2 pcs.), 4 (2 pcs.), 5 (2 pcs.), 6 (2 pcs.), 2 (3 pcs.), 8 (3 pcs.), 9 (3 pcs.), 7 (4 pcs.), ∑23.


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