Weekly Extreme Sudoku Competition for Feb 17 to Feb 23

Number 648, Extreme
by Crosswords Ltd. February puzzle packs Now Out!. Thanks for supporting our site.

All entries must be in by the end of Saturday, Feb 23 23:59 EST, USA
1 2 3 4 5 6 7 8 9
A
B
C
D
E
F
G
H
J
    4            
6       2        
  7   6     8 4  
  8       3 1    
3     2   7     8
    5 1       3  
  9 8     5 6 7  
2       9       4