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.

Optimized for: desktop
switch to: phone

Also try sudoku and hitori
     
 
44
 
13
 
18
   
 
27
 
17
   
7
 
 
12
15
23
 
 
7
42
11
6
 
20
17
28
 
 
10
 
 
8
   
16
33
 
39
23
4
 
11
9
12
 
9
13
15
 
18
10
 
16
 
31
 
6
16
 
12
11
 
21
10
15
42
 
11
 
27
12
 
 
14
8
36
7
 
11
 
10
11
13
7
 
20
 
 
4
 
 
6
 
13
 
3
22
 
8
25
6
15
 
7
4
39
 
   
16
 
 
8
 
   
00:00
You are playing 9x17 hard puzzle 23301

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