A Whisper of GAS

by Blobz · Difficulty 3 of 5 by Blobz

CASE 3089

A Whisper of GAS

  • Kropki dots
  • Whisper lines

The brief

Normal sudoku rules apply.

Adjacent digits along a green line must differ by 5 or more.

Black dots separate two digits where one is double the other. Not all such dots are shown.