Daily Sudoku Competition for Dec 1

Number 5257, Diabolical
238 people took an average of 30 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
A
B
C
D
E
F
G
H
J
  6       3   7  
        6   1   4
9               3
    9 7   4 5    
7       1       9
    3 8   6 2    
4               2
5   1   8        
  3   4       1