There is a common convenience in social chess to use an “upside-down rook” to represent a promoted Queen. This allows you to have two Queens on the board without having to find a second set of pieces. The main topics include:
Tournament Trap with Upside-Down Rooks
Interestingly, the use of an upside-down rook is not properly recognized in the official rules of tournament chess. Officially, playing an upside-down rook for a pawn promotion is actually still a rook. It’s an underpromotion! So this is a trap to watch out for in more advanced professional tournaments.
Related Chess Rules Topics
Read more about these related chess rules, chess puzzles, and other chess tactics and strategies: