Weekly Extreme Killer Sudoku Competition for Oct 15 to Oct 21

Number 578, Extreme
by Crosswords Ltd. October puzzle packs Now Out!. Thanks for supporting our site.
All entries must be in by the end of Saturday, Oct 21 23:59 EST, USA

1 2 3 4 5 6 7 8 9
A
B
C
D
E
F
G
H
J
6
 
12
 
17
14
8
 
18
16
8
 
 
 
 
 
 
 
 
18
16
 
 
 
24
11
 
 
 
 
9
25
 
 
8
 
21
 
13
 
 
11
 
21
 
 
 
 
 
 
 
 
 
20
9
 
 
24
6
 
 
 
 
12
 
18
 
12
 
13
 
 
 
 
 
 
 
7
 
8
 

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