Weekly Extreme Killer Sudoku Competition for Jan 13 to Jan 19

Number 643, Extreme
by Crosswords Ltd. March 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
7
 
14
 
19
 
 
10
 
7
10
12
11
 
13
 
 
 
 
 
 
17
 
8
 
18
 
19
21
 
 
 
 
10
 
22
 
10
 
12
 
 
 
 
 
 
13
 
14
12
18
 
 
 
 
 
 
 
 
 
12
13
8
24
 
8
 
15
 
 
 
 
 
 
13
 
 
9
 
6