Sudoku #x909

Sudoku game, level: Expert #909. This Sudoku have 29 given numbers (clues)..
Structure: 8 (1 pcs.), 6 (1 pcs.), 9 (2 pcs.), 2 (3 pcs.), 5 (4 pcs.), 3 (4 pcs.), 4 (4 pcs.), 7 (5 pcs.), 1 (5 pcs.), ∑29.


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