Master organic chemistry with the only interactive puzzle game designed for understanding chair conformations. Awarded “top chemistry app” by the Royal Society of Chemistry and 2016 finalist for the SXSW LaunchEDU award.

Success in organic chemistry courses and on exams such as the MCAT, GRE or DAT requires learning to think visually. Hands-on practice is critical to success.

Memorizing terms and formulas might get you through general chemistry, but may lead to failure in organic chemistry.

Chair conformations, called ring flips, offer great exercises in spatial reasoning, which is key for mastering organic chemistry. Yet hand drawing these cyclohexane chair forms can be tricky.

We created this game to prove organic chemistry can be visual, tactile and, yes, entertaining.

This visual pattern puzzle game provides a fun and fast method for mastering chair (or cyclohexane) ring flips.

Chairs! takes the mystery out of ring flips by offering instant feedback. During game play, as levels increase, so too does the complexity of these organic chemistry puzzles against the clock. There's no need to understand organic chemistry to play.

With over 13 challenging levels, we will help you master this tough concept with ease.

Recommended by professors at the University of Minnesota, University of Michigan, University of Edinburgh, and others.

SXSW LaunchEDU Finalist, 2016
Digital Innovation in Learning Award, 2015
Milken-Penn GSE Education Business Plan Competition Finalist 2017
Reimagine EDU Shortlist 2015, 2016
Chairs! named top mobile app by Royal Society of Chemistry

What's New

Version 2.3.16

Bug fixes

Ratings and Reviews

The game I wish I had in orgo


This is the game I wish I had when I took organic chemistry. Likewise, it's also the game I would have definitely suggested to students when I started teaching organic chemistry. Great job! 👾🔬

Love it!


This is such an awesome app. Once you get the hang of it, it's really relaxing to draw the little carbon bonds. Then you get to the higher levels and it's intense!

I understand chairs so much better now. More games, please, OCP!

I love Chairs!

Andrea Hall

This game is extremely fun and extremely addictive! I am not in an organic chemistry class this app is so helpful and easy to use that I am considering taking orgo next year.


Alchemie Solutions, Inc
175.7 MB
Requires iOS 7.0 or later. Compatible with iPhone, iPad, and iPod touch.
Age Rating
Rated 4+
© 2016 Alchemie Solutions Inc.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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