Weekly Extreme Killer Sudoku Competition for Feb 1 to Feb 7
Number 437, Extreme
by Crosswords Ltd.
October puzzle packs Now Out!
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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
20
17
 
 
19
10
8
 
 
 
 
 
 
 
 
7
 
20
11
3
11
16
10
 
10
12
 
 
 
 
 
21
 
 
 
 
16
 
 
 
 
18
12
 
 
15
8
3
 
 
 
17
14
9
 
 
 
10
 
 
 
 
 
 
14
 
9
15
 
21
 
 
19
 
 
 
 
10