Sudoku #x184

Sudoku game, level: Expert #184. This Sudoku have 22 given numbers (clues)..
Structure: 1 (1 pcs.), 2 (2 pcs.), 3 (2 pcs.), 4 (2 pcs.), 5 (2 pcs.), 9 (2 pcs.), 8 (3 pcs.), 6 (4 pcs.), 7 (4 pcs.), ∑22.


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