Wife and I have only ever done it in two. I know its an American puzzle but hate the Americanisms sometimes in it. I don't like the way they only show one of two same green letters. Think I’ll win the omaze Defender and house this week. Put a tenner on that. Might win the DM motorhome as well. :-) There again pigs might fly :-(
Retro it was invented by a Welsh engineer, Josh Wardle, and bought by New York Times in 2022, which was when a few American spellings crept in.
Cliffyg, it did tell me I was a genius!!