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.

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
 
 
7
 
12
 
20
 
32
   
 
3
 
37
 
33
30
 
 
11
10
14
 
15
19
 
 
7
16
41
4
 
13
 
15
 
 
38
8
4
5
 
28
10
 
17
32
11
6
 
8
38
 
8
 
8
 
 
6
12
15
6
15
 
21
13
 
12
 
4
13
 
12
 
23
 
 
20
 
00:00
You are playing 9x11 expert puzzle 25917

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