Sudoku #x222

Sudoku game, level: Expert #222. This Sudoku have 24 given numbers (clues)..
Structure: 6 (2 pcs.), 8 (2 pcs.), 1 (2 pcs.), 5 (2 pcs.), 2 (2 pcs.), 3 (2 pcs.), 9 (4 pcs.), 7 (4 pcs.), 4 (4 pcs.), ∑24.


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