Unzipped

by Marty Sears by Marty Sears

CASE 3936

Unzipped

byMarty Sears

Open on SudokuPad
Not graded: we can’t read all its rules yet
  • Kropki dots
  • Zipper lines
  • Palindromes

The brief

RULES:

Normal Sudoku rules apply.

  • Kropki: White dots separate two consecutive digits; Black dots separate two digits where one is double the other [ratio of 1:2] (not all dots are given).
  • Palindrome (slate): Digits along a Palindrome line read the same from both directions (e.g. 153747351).
  • Same Difference (turquoise): Every pair of adjacent digits on a Same Difference line has the same difference (this value may be different for different lines).
  • Zipper (lavender): Digits an equal distance from the center of a Zipper line must sum to the digit in the middle of that line.

MODIFIERS:

  • Shenanigans!: Each line is one of the above constraint line-types but some are lying to you (i.e. they must satisfy one of the other line-types and not the presented colour). The wrong-coloured lines are exactly those lines which have the digit 'D' on them ('D' must be determined by the solver).