| The selection is expressive. https://www.copyright.gov/comp3/chap300/ch300-copyrightable-... The Originality Requirement for Compilations A compilation may contain several distinct forms of authorship: • Selection authorship involved in choosing the material or data that will be included
in the compilation; • Coordination authorship involved in classifying, categorizing, ordering, or grouping
the material or data; and/or • Arrangement authorship involved in organizing or moving the order, position, or
placement of material or data within the compilation as a whole |
But the first prototype wasn't so fun, because it would often pick a word the player didn't even know existed.
So the creator (and his partner) manually classified the entire list based on if they knew the word or not; splitting the list into two groups, words which might appear as solutions and words that won't appear as solutions but will still be accepted.
This manual classification step and splitting it into two groups makes a very good argument for the wordlists meeting the criteria for copyright.
Source: https://slate.com/culture/2022/01/wordle-game-creator-wardle...