Ella Bea (20) on 3/12/2019 11:39 PM · Permalink · Report

Sol20.org has a text-based Yahtzee game that was updated in 1980 and has no other identifying credentials. They have a free emulator, and the game is loaded in Extended Cassette BASIC, so there is a possibility their entry is the game from 1973. No other information turned up during a search.