Sudoku #x496

Sudoku game, level: Expert #496. This Sudoku have 27 given numbers (clues)..
Structure: 1 (1 pcs.), 8 (1 pcs.), 7 (2 pcs.), 4 (3 pcs.), 5 (3 pcs.), 6 (3 pcs.), 9 (3 pcs.), 2 (4 pcs.), 3 (7 pcs.), ∑27.


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