Sudoku #h241

Sudoku game, level: Hard #241. This Sudoku have 25 given numbers (clues)..
Structure: 7 (1 pcs.), 2 (1 pcs.), 9 (2 pcs.), 3 (2 pcs.), 8 (3 pcs.), 5 (3 pcs.), 6 (4 pcs.), 1 (4 pcs.), 4 (5 pcs.), ∑25.


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