Logic Masters Deutschland e.V.

Zipper Lines: Along Zipper lines, pairs of digits equidistant from the center of the line have the same sum.

Kropki Pairs: Digits separated by a black dot are in a 1:2 ratio. Digits separated by a white dot are consecutive. Not all dots are necessarily given.

We categorized this puzzle as Heartburn. For more information about our difficulty categories, please visit our website, Missing Deck Puzzles, where we publish a new puzzle each day.

You can find a complete list of our puzzles on LMD here.