Weekly Extreme Killer Sudoku Competition for Dec 7 to Dec 13

Number 429, 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
15
 
 
 
15
 
6
 
12
14
 
18
13
 
20
15
 
 
 
 
 
13
 
 
18
 
10
17
8
 
 
 
 
 
7
 
 
5
19
14
 
 
 
 
7
10
 
 
19
14
 
15
 
 
 
16
 
 
14
 
11
 
13
9
 
 
 
 
 
 
 
 
 
6
 
8
 
24