Weekly Extreme Sudoku Competition for May 13 to May 19

Number 608, Extreme
by Crosswords Ltd. November puzzle packs Now Out!. Thanks for supporting our site.
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
        4       9
  3     8   5 1  
6       7 5      
4           3 6  
                 
  1 7           4
      3   4      
  9 5   2     3  
8       9       6