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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 all of the valid combinations are for a number? Click on the number clue, and a tooltip will show you the possibilities.

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Also try sudoku and hitori
 
 
10
 
44
    
 
14
 
31
  
 
15
 
9
3
 
  
13
8
7
15
10
 
36
18
24
 
11
10
 
44
 
10
 
11
 
9
 
6
15
 
8
11
24
35
25
 
29
12
23
 
12
 
  
4
 
7
11
8
6
 
21
 
 
17
7
9
10
5
39
 
16
 
9
 
8
 
  
11
 
00:00
You are playing 9x11 challenging puzzle 17055

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


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