Zip Down Memory Lane

by Dr Logic · Difficulty 5 of 5 by Dr Logic

CASE 3295

Zip Down Memory Lane

byDr Logic

Open on SudokuPad

More from Dr Logic

  • Anti-knight
  • Kropki dots
  • Zipper lines

The brief

Normal Sudoku Rules Normal zipper rules. - On lavender lines, digits an equal distance from the center must sum to the digit in the middle of the line. Zipper lines do not branch. (For clarity there is a line containing R4C8,R5C7,R6C8) Lines passing through the centre are all straight. Kropki - Black dots separate digits in 1:2 ratio+ White dot separates consecutive digits (not all are given) Anti-Knight - Cells separated by a knights move (chess) cannot contain the same digit.