Sudoku #x294

Sudoku game, level: Expert #294. This Sudoku have 27 given numbers (clues)..
Structure: 7 (2 pcs.), 3 (2 pcs.), 9 (2 pcs.), 1 (3 pcs.), 5 (3 pcs.), 2 (3 pcs.), 4 (3 pcs.), 6 (4 pcs.), 8 (5 pcs.), ∑27.


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