Sudoku #x266

Sudoku game, level: Expert #266. This Sudoku have 25 given numbers (clues)..
Structure: 2 (1 pcs.), 1 (2 pcs.), 8 (2 pcs.), 3 (3 pcs.), 4 (3 pcs.), 5 (3 pcs.), 7 (3 pcs.), 6 (4 pcs.), 9 (4 pcs.), ∑25.


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