Sudoku #m368

Sudoku game, level: Medium #368. This Sudoku have 23 given numbers (clues)..
Structure: 1 (2 pcs.), 2 (2 pcs.), 3 (2 pcs.), 5 (2 pcs.), 9 (2 pcs.), 6 (3 pcs.), 7 (3 pcs.), 8 (3 pcs.), 4 (4 pcs.), ∑23.


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