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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 Tutorials: Basic Challenging

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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14
 
29
  
 
15
 
7
    
 
37
 
20
11
 
11
8
 
8
10
 
22
 
8
17
24
 
 
11
27
8
8
 
12
16
23
14
   
14
23
6
6
 
18
35
9
13
  
12
 
13
17
 
26
 
19
17
 
15
11
14
14
23
 
 
7
24
16
10
 
22
 
14
 
  
12
 
12
 
00:00
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