HACKENBUSH: a window to a new world of math

"A playful venture into the vast and mysterious forests of combinatorial game theory."

This one simple game will change the way you look at numbers forever! Hackenbush is easy to pick up, but exploring its strategy leads us down a fantastical mathematical rabbit hole, through which can be found the roots of our familiar number system, intricately entangled with a host of new and exotic numeric species lurking alongside them.