Bonnie Eisenman on Multiphase Numerical Modeling... for Jigsaw Puzzle Generation

Papers We Love
Papers We Love
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Two Sigma

101 Ave. of the Americas, 23rd Fl. J · New York

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Cross Streets: Watt and Grand. Note: Please make sure you’re signed-up for the meetup, including your first and last name. Without this info you won’t be allowed into the building by security.

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We're extremely glad to host Bonnie Eisenman, senior software engineer at Twitter and member of NYC Resistor, presenting on Multiphase Numerical Modeling of Dendritic Solidification for Jigsaw Puzzle Generation ( by J. Louis-Rosenberg, A. Resnick, and J. Rosenkrantz.


This paper explores expansions on the stylistic variety of handmade and artisanal jigsaw puzzles through the application of techniques from natural simulation. Typical jigsaw puzzle designs reflect the manufacturing constraints of die-cut, mass-production methods, but novel families of puzzle forms can be generated by applying a phase field approach to the simulation of dendritic solidification ( Existing models of solidification with multiphase methods are extended to satisfy aesthetic and geometric considerations specific to jigsaw puzzle design.

It's a mixture of math, physics, and good old-fashioned puzzling.


Bonnie Eisenman ( is a senior software engineer at Twitter and a member of the hackerspace NYC Resistor (, with previous experience at Codecademy, Fog Creek Software, and Google. She is the author of Learning React Native (, a book on building native iOS and Android applications with Javascript, published with O’Reilly Media. In her spare time, she enjoys learning languages, tinkering with hardware projects, and knitting. Find her on Twitter as @brindelle (


Doors open at 6:30 pm; the presentations will begin right around 7:00 pm; and, yes, there will be refreshments of all kinds and pizza.

You'll have to check-in with security with your Name/ID. Definitely sign-up if you’re going to attend–unfortunately people whose names aren’t entered into the security system in advance won’t be allowed in.

After Bonnie's presentation, we will open up the floor to discussion and questions.

We hope that you'll read some of the papers and references before the meetup, but don't stress if you can't. If you have any questions, thoughts, or related information, please visit #pwlnyc ( on slack (, our GitHub repository (, or add to the discussion on this event's thread.

Additionally, if you have any papers you want to add to the repository above (papers that you love!), please send us a pull request ( Also, if you have any ideas/questions about this meetup or the Papers-We-Love org, just open up an issue.


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