Logic Masters Deutschland e.V.

Diagonal: Digits along a marked diagonal cannot repeat.

Zipper Line: Along Zipper lines, pairs of digits equidistant from the center of the line have the same sum. For Zipper lines of odd length, that sum is the central digit on the line.

Cages: Digits in a cage sum to the value shown in the upper left corner of the cage.

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

Try the puzzle on the SudokuPad app by Sven Neumann.