Sudoku #e231

Sudoku game, level: Easy #231. This Sudoku have 30 given numbers (clues)..
Structure: 6 (1 pcs.), 8 (2 pcs.), 3 (2 pcs.), 9 (3 pcs.), 7 (4 pcs.), 5 (4 pcs.), 1 (4 pcs.), 4 (4 pcs.), 2 (6 pcs.), ∑30.


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