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: Did you know that you can use the arrow keys on your keyboard to move up and down, left and right?

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20
 
16
 
30
   
 
8
 
22
 
 
11
5
 
6
5
 
25
 
9
21
 
16
13
 
39
37
 
 
7
9
18
 
38
12
4
42
 
 
12
 
15
 
18
 
 
20
 
5
 
9
31
9
 
 
 
9
14
21
15
22
29
 
14
23
10
 
13
 
 
8
 
6
 
12
8
3
 
 
16
 
25
 
14
15
 
 
7
31
28
9
 
 
20
7
8
 
13
 
6
38
 
5
9
 
17
 
10
 
 
7
 
 
22
 
 
00:00
You are playing 9x17 hard puzzle 22253

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