It's originally called Jotto, and Mastermind is a generalization/de-specification of it that came later. https://en.m.wikipedia.org/wiki/Jotto https://en.m.wik

It's originally called Jotto, and Mastermind is a generalization/de-specification of it that came later. https://en.m.wikipedia.org/wiki/Jotto https://en.m.wikipedia.org/wiki/Jotto