Show HN: Functional Emoji CLI Sokoban in Node.js (github.com)

This is meant as an illustration of functional programming concepts: It's a Sokoban game that you can play on the command line, it uses emoji for graphics, uses currying, mapping, monads/promises and zero variables or loops. It's not meant as a tutorial; think of it as something you can look at to decide whether functional programming is checking out more thoroughly.