Logic Masters Deutschland e.V.

You hold the ancient sword in your hands. An odd feeling courses through you. Even with this, you wonder if you can complete your quest. Good luck!

Standard parity line and zipper. I don't set out to make super hard puzzles but from my tests I think this is particularly tricky. I am going to pitch as a 5 star, even though I hope people will find this easier. A solution guide is attached if you want to understand the intended logic.

• Normal sudoku rules apply: Place the digits 1 to 9 once each in every row, column, and 3x3 box
• Parity Line: Digits along a (hollow) red parity line alternate between odd and even
• Zipper Line: Digits an equal distance from the center of a (solid) lavender zipper line sum to the digit in the center

Play on Sudokupad

Download full solution guide (PDF)