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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: Not sure what a number is yet? Fill in its remaining possible values -- the cell will automatically resize to accommodate.

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Also try sudoku and hitori
 
 
29
 
19
  
 
5
 
24
 
8
 
6
    
14
 
14
5
 
41
  
42
 
 
3
10
 
8
38
8
 
15
 
9
12
 
10
5
6
   
7
9
10
 
 
3
 
19
11
24
15
12
 
6
 
  
6
13
3
 
9
4
11
36
  
   
19
41
 
9
 
5
 
8
3
12
 
6
 
6
 
 
12
10
8
4
7
14
 
19
 
  
 
23
3
9
11
 
11
 
21
8
 
  
5
18
14
14
3
 
4
8
11
5
 
41
 
   
14
 
11
 
00:00
You are playing 9x17 hard puzzle 24106

Start over, and play another kakuro of this size and difficulty.


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