PeerPuzzles
Thermometers
Fill the thermometers until every row and column has its number.
The numbers say how many squares in each row and column are filled.
A thermometer fills from its bulb, with no gaps: anywhere from empty to full.
Tap a square to fill it, again to mark it empty, again to clear it. Filling runs back to the bulb, and empty runs on to the end.
Progress can't be saved in this browser (private browsing, or site data blocked), so solved levels won't be ticked off.
Free play: a new random puzzle
To install: tap Share, then Add to Home Screen.