Kakuro Tutorial -- Challenging

1, 2, 3, and 5 cannot be used for 39 in 6, so we fill in 4. This reduces the possibilities of the two cells above to 1, 2, and 3.

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13
 
10
 
 
8
 
3
 
 
27
 
12
11
 
7
 
8
24
5
 
27
26
 
16
 
 
9
12
12
 
 
11
21
30
39
 
 
17
 
10
 
 
6
10
12
 
8
18
 
10
 
7
 
13
 
14