Sudoku #x198

Sudoku game, level: Expert #198. This Sudoku have 29 given numbers (clues)..
Structure: 1 (1 pcs.), 6 (2 pcs.), 2 (2 pcs.), 9 (2 pcs.), 5 (4 pcs.), 4 (4 pcs.), 3 (4 pcs.), 7 (5 pcs.), 8 (5 pcs.), ∑29.


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7
5
4
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8
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9
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6
8
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7
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9
6
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8
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5
8
7
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