Sudoku #b10

Sudoku game, level: Beginner #10. This Sudoku have 31 given numbers (clues)..
Structure: 7 (1 pcs.), 8 (2 pcs.), 4 (3 pcs.), 9 (4 pcs.), 6 (4 pcs.), 5 (4 pcs.), 1 (4 pcs.), 2 (4 pcs.), 3 (5 pcs.), ∑31.


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