This was an exercise in making smooth transitions, of which I didn’t do a half-bad job. ‘Dots’ smoothly move to new spots on the input line, and navigating through the game menus has some semblance of hierarchy.

Todo: make this 2-player; allow one person to pick a code and send the other person a link. The other player’s gameplay should be streamed via websockets to the code-maker

Mastermind wikipedia link)

Also related:

https://www.mobygames.com/game/98887/moo/, the predecessor to Mastermind

https://github.com/hansklav/MOO

https://en.wikipedia.org/wiki/Bulls_and_cows, the predecessor to MOO