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
 
 
3
 
30
 
 
10
 
30
 
 
8
 
11
 
6
 
16
10
5
5
 
38
 
 
11
 
12
26
8
33
9
6
13
 
6
11
8
4
39
 
 
24
 
12
 
12
14
 
6
10
 
15
20
 
42
7
19
   
42
26
 
13
6
9
5
 
41
 
 
31
 
20
9
 
 
18
6
13
13
13
 
23
 
10
30
 
 
8
37
21
24
 
5
4
15
4
7
 
9
14
11
9
 
13
 
37
 
 
10
 
7
 
14
 
00:00
You are playing 9x17 challenging puzzle 102481

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