8 months or so ago I designed a paper adaptation of the board game, Quarto. I call it Papyrto. Papyrus (Paper) + Quarto = Papyrto.
Invented by Swiss mathematician Blaise Müller in 1991, Quarto is a simple game with interesting rules. There are 16 game pieces, each with 4 distinct attributes; tall or short, light or dark, round or square, and solid or hollow.
So my design had to have a similar set of ‘pieces’ with a different set of 4 distinct attributes.