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
 
 
21
 
36
 
 
20
 
16
 
28
 
 
4
 
13
9
 
21
 
11
21
16
 
22
11
16
 
17
 
   
 
6
11
 
16
7
 
41
 
19
21
 
3
23
13
18
45
 
8
 
9
18
7
 
   
14
 
 
8
14
 
10
 
 
11
12
14
24
9
22
 
12
 
13
 
17
 
3
 
00:00
You are playing 9x11 hard puzzle 37164

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