Daily Sudoku Competition for Dec 20

Number 2720, Tough - SOLUTION
576 people took an average of 21 minutes to correctly complete this puzzle

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Future Puzzle - will be submitted on the relevant day
1 2 3 4 5 6 7 8 9
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7 1 8 6 3 4 2 5 9
2 9 5 8 1 7 4 3 6
6 4 3 9 2 5 8 1 7
5 6 1 7 4 8 3 9 2
8 7 2 3 5 9 1 6 4
9 3 4 1 6 2 7 8 5
4 8 9 5 7 1 6 2 3
3 5 7 2 8 6 9 4 1
1 2 6 4 9 3 5 7 8