Trying to build the 3, 4, 4, 6 tiling by adding polygons around each vertex (indicated with a white dot) in the order triangle-square-square-hexagon.
More from Chalkdust
Crossnumber winners, issue 12
Did you solve it?
Christmas puzzles: the solutions
We reveal the solutions to our Christmas puzzles!Crossnumber winners, Issue 08
Did you solve it?
Mike Jordan on machine learning
Undoubtedly the most influential voice on this hottest of hot topics.
The doodle theorem, and beyond…
Colin Wright juggles Euler, doodling and Millennium problems
Dear Dirichlet, Issue 02
Moonlighting agony uncle Professor Dirichlet answers your personal problems.