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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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3
 
35
 
20
 
6
  
 
10
 
39
 
8
 
6
17
 
14
 
11
 
24
19
 
17
 
16
 
    
 
4
20
7
6
 
36
 
19
16
 
9
32
9
6
11
 
20
22
16
 
13
18
10
10
   
24
 
9
 
  
 
 
12
21
9
7
10
 
6
26
 
14
 
11
 
26
 
00:00
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