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4x4: easy intermediate hard challenging expert
6x6: easy intermediate hard challenging expert
8x8: easy intermediate hard challenging expert
9x11: easy intermediate hard challenging expert
9x17: easy intermediate hard challenging expert

Kakuro is like a crossword puzzle with numbers. Each "word" must add up to the number provided in the clue above it or to the left. Words can only use the numbers 1 through 9, and a given number can only be used once in a word. Every kakuro puzzle has one and only solution, and can be solved through logic alone.

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Kakuro Hint: Start with clues that only have one valid combination. For example, 3 in 2 must be 1 and 2, and 23 in 3 must be 6, 8, and 9.

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15
 
16
 
12
 
8
  
 
40
 
15
   
29
 
4
8
 
 
3
30
11
8
 
 
4
10
12
11
 
6
6
  
16
3
 
 
4
14
15
8
9
  
7
 
  
6
4
 
5
11
 
 
13
11
12
3
8
 
11
 
14
11
 
 
12
10
38
12
9
 
23
  
12
 
22
8
 
11
15
 
6
9
  
8
9
 
6
 
 
8
19
17
 
12
18
22
 
 
5
 
6
16
 
 
17
10
24
7
10
30
 
 
12
6
7
32
 
    
4
 
29
 
    
00:00
You are playing 9x17 intermediate puzzle 684

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