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: Did you know that you can use the arrow keys on your keyboard to move up and down, left and right?

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Also try sudoku and hitori
   
 
43
 
9
   
 
13
 
14
 
16
 
8
 
7
 
 
11
27
 
 
19
10
13
31
5
 
20
7
 
37
 
10
31
 
24
13
 
8
23
14
11
7
 
7
 
7
 
4
9
12
 
13
24
7
11
 
4
16
 
16
10
 
 
14
27
9
8
8
12
 
6
 
 
26
 
 
9
 
 
00:00
You are playing 9x11 hard puzzle 6106

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