Gunpowder

by Blobz · Difficulty 5 of 5 by Blobz

CASE 3009

Gunpowder

  • Kropki dots
  • Thermometers
  • Negative constraint

The brief

Normal sudoku rules apply.

Digits along thermometers increase from the bulb end.

Black dots separate two digits where one is double the other. ALL such dots are shown.