Sudoku #x868

Sudoku game, level: Expert #868. This Sudoku have 24 given numbers (clues)..
Structure: 1 (1 pcs.), 6 (1 pcs.), 8 (2 pcs.), 9 (2 pcs.), 3 (3 pcs.), 5 (3 pcs.), 2 (4 pcs.), 4 (4 pcs.), 7 (4 pcs.), ∑24.


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