Sudoku #x449

Sudoku game, level: Expert #449. This Sudoku have 24 given numbers (clues)..
Structure: 3 (1 pcs.), 8 (2 pcs.), 4 (2 pcs.), 7 (2 pcs.), 9 (2 pcs.), 5 (3 pcs.), 2 (4 pcs.), 1 (4 pcs.), 6 (4 pcs.), ∑24.


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