Weekly Extreme Killer Sudoku Competition for Feb 10 to Feb 16

Number 647, Extreme
by Crosswords Ltd. September 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
11
 
 
14
 
21
17
 
7
20
 
17
 
 
 
14
 
 
 
 
 
 
20
13
 
7
5
14
9
9
 
 
 
 
 
 
 
 
 
14
 
 
13
11
10
10
9
11
 
11
 
 
 
 
 
 
12
 
 
12
 
29
 
9
 
 
20
 
15
 
 
 
 
10
 
 
 
 
11