Sudoku #h499

Sudoku game, level: Hard #499. This Sudoku have 29 given numbers (clues)..
Structure: 3 (2 pcs.), 5 (2 pcs.), 7 (2 pcs.), 8 (2 pcs.), 4 (3 pcs.), 6 (3 pcs.), 1 (5 pcs.), 2 (5 pcs.), 9 (5 pcs.), ∑29.


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