triangles are my favorite shape. three points where two lines meet (alt-j . tessellate)

One of my favorite games as a kid was tangram, a Chinese puzzle consisting of 7 geometric shapes - 5 triangles in 3 different sizes, a square and a parallelogram. The objective of the puzzle is to make all kinds of different shapes - people, animals, buildings - using those same 7 pieces. While it seems fairly simple, tangram is actually quite complex [...]