Below are folding puzzles that we designed for fun. Each puzzle also represents a mathematical unsolved problem that we have worked on, to illustrate what makes the problem so challenging.

You are free to print the puzzles out, play with them, and give them away as individual puzzles, but any redistribution must name the puzzle designers (Erik Demaine and Martin Demaine). Also, you need permission before publishing these puzzles in any form.

MIT CSAIL Annual Meeting Puzzles



2002 2002



2003 2003



2004 2004



2005 2005



2006 2006



2007 2007



2008 2008



2009 2009



Fall 2009 Fall 2009



2010 2010



2011 2011



2012 2012



2013 2013



2014 2014



2015 2015



2016 2016



2017 2017



2018 2018



2019 2019

MoMath edition MathFest 2019 edition

Puzzle 1: Black and White Squares Puzzle 2: Colored Squares

Last updated August 1, 2019 by Erik Demaine.