Sudoku #h862

Sudoku game, level: Hard #862. This Sudoku have 24 given numbers (clues)..
Structure: 2 (2 pcs.), 8 (2 pcs.), 9 (2 pcs.), 1 (3 pcs.), 3 (3 pcs.), 4 (3 pcs.), 5 (3 pcs.), 6 (3 pcs.), 7 (3 pcs.), ∑24.


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