Sudoku #h63

Sudoku game, level: Hard #63. This Sudoku have 25 given numbers (clues)..
Structure: 3 (0 pcs.), 5 (1 pcs.), 8 (2 pcs.), 1 (3 pcs.), 7 (3 pcs.), 2 (4 pcs.), 4 (4 pcs.), 6 (4 pcs.), 9 (4 pcs.), ∑25.


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