Sudoku #x717

Sudoku game, level: Expert #717. This Sudoku have 29 given numbers (clues)..
Structure: 5 (1 pcs.), 3 (2 pcs.), 8 (2 pcs.), 9 (2 pcs.), 4 (3 pcs.), 1 (4 pcs.), 2 (5 pcs.), 6 (5 pcs.), 7 (5 pcs.), ∑29.


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