Kakuro - 8x8 challenging online kakuro logic puzzle

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4x4: easy intermediate hard challenging expert
6x6: easy intermediate hard challenging expert
8x8: easy intermediate hard challenging expert
9x11: easy intermediate hard challenging expert
9x17: easy intermediate hard challenging expert

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 Blog
Kakuro Rules
Kakuro Tutorials: Basic Challenging

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

	30	27		20	6		18	15
16			4 6			16
33						13 11
17					13 28
12			13 6				12	23
		11 10				4 10
	12 4			11 4
4			28
3			12			8