Sudoku #b77

Sudoku game, level: Beginner #77. This Sudoku have 25 given numbers (clues)..
Structure: 4 (1 pcs.), 8 (2 pcs.), 5 (2 pcs.), 3 (2 pcs.), 7 (3 pcs.), 6 (3 pcs.), 9 (4 pcs.), 2 (4 pcs.), 1 (4 pcs.), ∑25.


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