Sudoku #h638

Sudoku game, level: Hard #638. This Sudoku have 27 given numbers (clues)..
Structure: 5 (0 pcs.), 1 (2 pcs.), 2 (3 pcs.), 7 (3 pcs.), 8 (3 pcs.), 9 (3 pcs.), 4 (4 pcs.), 6 (4 pcs.), 3 (5 pcs.), ∑27.


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