Weekly Extreme Killer Sudoku Competition for Jan 14 to Jan 20

Number 591, Extreme
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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
18
 
 
21
18
 
 
24
 
13
 
 
 
 
3
 
 
13
9
11
 
 
 
 
19
 
 
 
15
 
21
10
 
 
12
7
21
17
 
 
12
 
 
 
 
 
 
 
 
 
 
8
7
22
 
11
30
13
 
 
 
 
 
 
 
 
 
 
13
 
5
 
8
 
 
 
20