Sudoku #m263

Sudoku game, level: Medium #263. This Sudoku have 23 given numbers (clues)..
Structure: 1 (1 pcs.), 5 (2 pcs.), 6 (2 pcs.), 7 (2 pcs.), 2 (3 pcs.), 4 (3 pcs.), 8 (3 pcs.), 9 (3 pcs.), 3 (4 pcs.), ∑23.


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