Sudoku #m88

Sudoku game, level: Medium #88. This Sudoku have 23 given numbers (clues)..
Structure: 3 (1 pcs.), 5 (1 pcs.), 2 (2 pcs.), 1 (3 pcs.), 4 (3 pcs.), 6 (3 pcs.), 7 (3 pcs.), 9 (3 pcs.), 8 (4 pcs.), ∑23.


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