Logic Masters Deutschland e.V.

This puzzle uses an extension of the Zipper Lines ruleset from Jaze that allows for even-length lines. As you can see in the image, the top-left line has it's center marked between two cells.

• Normal sudoku rules apply.
• Digits an equal distance from the center of a lavender Zipper Line sum to the same total. For odd-length lines, the total is the digit placed in the line's (circled) center. Digits may repeat on a Zipper Line.

Click here to search for more Zipper Lines puzzles on LMD. If you've never solved a puzzle with this ruleset before, I'd recommend A Totally Balanced Approach as an introduction.

Example Puzzle

Here is a 4x4 example (left) and it's solution (right). The totals are 6 for the even line and 4 for the odd line. you can play the example here.