Sudoku #h266

Sudoku game, level: Hard #266. This Sudoku have 24 given numbers (clues)..
Structure: 4 (0 pcs.), 1 (2 pcs.), 5 (2 pcs.), 2 (2 pcs.), 8 (3 pcs.), 6 (3 pcs.), 9 (4 pcs.), 3 (4 pcs.), 7 (4 pcs.), ∑24.


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