Sudoku #x899

Sudoku game, level: Expert #899. This Sudoku have 27 given numbers (clues)..
Structure: 6 (1 pcs.), 4 (1 pcs.), 2 (2 pcs.), 3 (2 pcs.), 7 (3 pcs.), 8 (4 pcs.), 1 (4 pcs.), 9 (5 pcs.), 5 (5 pcs.), ∑27.


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