Sudoku #x961

Sudoku game, level: Expert #961. This Sudoku have 22 given numbers (clues)..
Structure: 5 (0 pcs.), 8 (2 pcs.), 3 (2 pcs.), 6 (2 pcs.), 7 (3 pcs.), 1 (3 pcs.), 2 (3 pcs.), 4 (3 pcs.), 9 (4 pcs.), ∑22.


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