Sudoku #x137

Sudoku game, level: Expert #137. This Sudoku have 29 given numbers (clues)..
Structure: 3 (1 pcs.), 1 (2 pcs.), 6 (2 pcs.), 9 (3 pcs.), 7 (3 pcs.), 5 (3 pcs.), 8 (4 pcs.), 4 (5 pcs.), 2 (6 pcs.), ∑29.


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