Sudoku #h683

Sudoku game, level: Hard #683. This Sudoku have 28 given numbers (clues)..
Structure: 2 (0 pcs.), 7 (1 pcs.), 6 (2 pcs.), 5 (3 pcs.), 1 (4 pcs.), 3 (4 pcs.), 4 (4 pcs.), 9 (4 pcs.), 8 (6 pcs.), ∑28.


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1
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