Logic Masters Deutschland e.V.

The Rules:

1. [Normal sudoku rules apply]: Fill every row, column and 3x3 box with the digits from 1 to 9 once each, with no repeats.
2. [Incremental Zipper Lines] The lavender lines are variant of zipper lines. In regular zipper lines, each pair of digits coming out from the center digit on a line sums to the same thing. In this puzzle, the sums of each pair of digits coming out from the center increases by one.
   • For an odd length line, if the center cell has a value x, the next pair out from the center add to x + 1, then x + 2, etc...
     • eg. 12768 (7, 8, 9)...
   • For an even length line, if the center pair adds to x, the next pair adds to x+1, then x+2, etc...
     • e.g. 645798 (12, 13, 14...)

The Puzzle:

Try it on CTC sudoku pad or Sirxemics Sudoku Maker