Thermometers

Fill mercury from every bulb to match the row and column counts.

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How to play Thermometers

The grid is completely tiled with thermometers, each a chain of cells with a round bulb at one end and a stem reaching away from it. Mercury is poured in from the bulb, so a thermometer always fills as an unbroken run that starts at the bulb — mercury can never float in the middle or leave a gap. The numbers outside the grid tell you how much is filled: each number on the left is the count of mercury cells in that row, and each on the top is the count in that column. Click a cell to raise the mercury up to it, click a filled cell to pull the level back down, and click the bulb to empty a thermometer completely. Match every clue to win, and beat your fastest time.

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Thermometers — frequently asked questions

Which way does the mercury fill?

Always from the bulb outward along the stem, with no breaks. A thermometer's filled cells form one continuous run beginning at the bulb, so mercury can never float or skip a cell.

What do the numbers mean?

Each number on the left counts the filled cells in its row, and each number on the top counts the filled cells in its column. Fill mercury so every row and column matches its number exactly.

How do I empty part of a thermometer?

Click a cell that is already filled to lower the mercury to just below it, or click the round bulb to drain the whole thermometer at once. Clicking an empty cell raises the mercury up to that point.

Is Thermometers free to play?

Yes. Thermometers runs free in your browser with no download and no sign-up, in clean black and white, with fresh solver-verified boards every game.

Is Thermometers free to play?

Yes — Thermometers is completely free on Inkplay, with no download, no sign-up, and no in-game purchases. Open the page and play instantly on desktop or mobile.

Can I play Thermometers unblocked?

Yes. Thermometers runs entirely in your browser with no download, install, or plugins, so it loads instantly and keeps working even on school or work networks where bigger game sites get blocked.

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