Weekly Extreme Killer Sudoku Competition for May 19 to May 25

Number 661, 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
21
 
 
9
 
14
 
 
19
16
 
8
 
9
 
11
 
 
 
7
 
17
 
17
 
 
 
10
 
13
 
 
38
 
10
 
11
 
 
 
 
 
 
 
 
21
 
14
 
12
 
 
15
 
 
11
 
 
10
 
10
 
19
 
 
 
9
 
10
 
 
 
 
23
 
 
8
 
13