Weekly Extreme Killer Sudoku Competition for Jan 15 to Jan 21

Number 539, Extreme
by Crosswords Ltd. January puzzle packs Now Out!. Thanks for supporting our site.
All entries must be in by the end of Saturday, Jan 21 23:59 EST, USA

1 2 3 4 5 6 7 8 9
A
B
C
D
E
F
G
H
J
17
 
6
6
 
17
16
25
 
12
 
 
8
 
 
 
 
 
 
11
 
 
15
8
 
 
18
 
12
 
27
 
 
10
 
 
14
 
5
 
 
 
 
10
 
16
 
 
14
10
 
3
 
15
 
26
 
 
 
11
9
 
 
16
 
 
13
 
 
13
16
 
 
 
 
 
6
 
 
 
 

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