Last year I wrote about a 3D-printed puzzle I’d designed, called Seven Triples.
At work we want to use this puzzle during an A-Level enrichment day, which means we need about twenty copies of it. I 3D-printed four copies over the course of a couple of weeks, in amongst other jobs, and I don’t have the patience to do any more. So, I’ve made a 2D version that we can print and cut out much more quickly.
![Triangles arranged in rows. Each triangle is filled with one of seven patterns. There are white, yellow and magenta triangles.](https://aperiodical.com/wp-content/uploads/2020/02/fano-triangles-shapes-A3-colour.svg-1024x724.png)