Sudoku #h993

Sudoku game, level: Hard #993. This Sudoku have 24 given numbers (clues)..
Structure: 7 (2 pcs.), 8 (2 pcs.), 3 (2 pcs.), 2 (2 pcs.), 9 (2 pcs.), 4 (3 pcs.), 1 (3 pcs.), 5 (4 pcs.), 6 (4 pcs.), ∑24.


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