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
   
 
17
 
10
 
3
 
32
 
 
12
 
33
 
 
13
12
16
10
 
42
 
 
28
13
 
 
27
17
29
16
 
   
23
 
 
14
8
29
 
 
11
35
37
23
 
12
20
39
 
   
10
 
 
22
9
 
15
 
15
12
 
17
17
 
12
10
10
 
36
 
 
11
 
27
 
 
00:00
You are playing 9x11 hard puzzle 26004

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