Where/how are you seeing this being used? The easy answer is that a set that was made in Europe, or follows a chess pattern that originated in Europe. The Staunton style is the most popular pattern and originated in England. http://www.chess-museum.com/staunton-style.html. You can browse sets originating from different regions on this website to see that there are some sets, particularly from Asia, that do not follow a European pattern at all. You will also see regional differences in staunton-inspired patterns, like sets from Austria and Russia. Here are some earlier patterns that are also European, although they are not very popular anymore https://stauntonchesssets.com/pre_designs.html
European Chess Set

The Czech set is European but it is its own animal. I personally like Eastern European sets the most. Especially when it is a hybrid set. Eastern style of Bishops with Western style King. Sets like the Dragon head Knight Bohemia set and Romanian/Hungarian set are examples of this design.


I'm asking in reference to stores like House of Staunton having a seperate section in Chess Sets called 'European Sets'. I don't see the difference. Same with Millenium electronic boards. One version is listed as European

Same with Millenium electronic boards. One version is listed as European
That may have to do with voltage or plug requirements

I'm asking in reference to stores like House of Staunton having a seperate section in Chess Sets called 'European Sets'. I don't see the difference. Same with Millenium electronic boards. One version is listed as European
The HoS European sets page is simply sets made in Europe. They all look Polish to me.
Sorry for the noob question, but what differentiates a European Chess Set from others?