Weekly Extreme Killer Sudoku Competition for Aug 13 to Aug 19

Number 569, Extreme
by Crosswords Ltd. August puzzle packs Now Out!. Thanks for supporting our site.
All entries must be in by the end of Saturday, Aug 19 23:59 EST, USA

1 2 3 4 5 6 7 8 9
A
B
C
D
E
F
G
H
J
12
 
 
12
 
17
 
17
7
19
 
11
 
20
21
 
 
 
 
11
 
 
 
 
14
 
14
9
 
14
 
 
 
 
 
 
 
 
 
14
 
 
19
10
4
6
20
 
21
12
 
 
 
 
 
18
 
 
 
16
 
 
12
15
 
11
 
 
6
 
 
 
 
 
 
 
 
 
23
 
 

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