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 all of the valid combinations are for a number? Click on the number clue, and a tooltip will show you the possibilities.

Optimized for: desktop
switch to: phone

Also try sudoku and hitori
 
 
20
 
13
 
 
9
 
16
 
 
9
 
21
13
 
4
 
5
 
10
 
3
20
10
10
38
 
 
10
 
12
19
 
15
 
 
 
23
7
9
13
7
 
20
39
 
13
 
7
 
4
 
7
 
4
 
12
 
00:00
You are playing 8x8 intermediate puzzle 72514

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