Sudoku #h472

Sudoku game, level: Hard #472. This Sudoku have 27 given numbers (clues)..
Structure: 5 (1 pcs.), 3 (2 pcs.), 1 (3 pcs.), 2 (3 pcs.), 6 (3 pcs.), 7 (3 pcs.), 8 (3 pcs.), 4 (4 pcs.), 9 (5 pcs.), ∑27.


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