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Patentguessr
A daily other puzzle game.
Play Patentguessr on the official site
patentguessr.com · free, new puzzle daily
Play on patentguessr.comWhat is Patentguessr?
PatentGuessr is a free daily puzzle game that challenges players to identify a real US invention from a cleaned-up patent drawing. Each day presents one historical patent with the title, number, and labels removed, and players get six guesses to name the specific invention.
How to play Patentguessr
Type a guess to name the invention shown in the patent drawing. Each wrong guess reveals a clue from the patent: filing date and place, size, class, a claim excerpt, then part of the title. Guesses that are right but too general are marked TOO BROAD and still use a turn, so be specific; typos and alternate names are accepted.
Tips & strategy
- Study the drawing closely for mechanical parts, shapes, and context before guessing.
- Avoid broad guesses like "machine" or "device"—they will be marked too broad.
- Use the first clue (filing date and place) to narrow the time period and likely inventor location.
- If stuck, let the class and claim clues guide you toward the invention's category.
- Try common alternate names and check for typos, since the game accepts them.
Frequently asked questions
Is PatentGuessr free?
Yes, PatentGuessr is a free daily game.
When does a new puzzle appear?
A new patent puzzle appears at midnight your local time, and past days stay playable in the archive.
Can I share my results without spoiling the answer?
Yes, you can copy a link to share your result without giving away the solution.
Are the patent drawings real?
Yes, each drawing is an original public-domain US patent scan with identifying marks removed.
Do I need an app to play?
No app is mentioned; PatentGuessr runs in a browser and requires JavaScript.
Where to play
Play Patentguessrpatentguessr.com · free, new puzzle daily
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