Sudoku #h49

Sudoku game, level: Hard #49. This Sudoku have 24 given numbers (clues)..
Structure: 5 (1 pcs.), 8 (1 pcs.), 1 (3 pcs.), 2 (3 pcs.), 3 (3 pcs.), 6 (3 pcs.), 7 (3 pcs.), 9 (3 pcs.), 4 (4 pcs.), ∑24.


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