Breakdown

**Sudoku, Zipper Lines, Diagonal** - Standard sudoku rules apply: The digits 1 through 9 appear in every row, column, and box. - 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. - Diagonal: Digits along a marked diagonal cannot repeat. Accessibility Note: The thin lines running from r1c1 to r9c9 and from r1c9 to r9c1 are reminders of the diagonal rules. All other lines are all Zipper Lines. Two colors thicknesses are used to distinguish the lines when two Zipper lines intersect. Subscribe to our mailing list to receive a weekly email with all of our puzzles from the past week: https://missingdeck.net/mailing.html