Sudoku #x835

Sudoku game, level: Expert #835. This Sudoku have 29 given numbers (clues)..
Structure: 3 (0 pcs.), 1 (3 pcs.), 7 (3 pcs.), 6 (3 pcs.), 9 (3 pcs.), 5 (4 pcs.), 4 (4 pcs.), 2 (4 pcs.), 8 (5 pcs.), ∑29.


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