It sounds like you're discussing the construction of the Emperor's Throne Room from Star Wars using LEGO bricks! The mention of needing around 570 pieces to build out the entire scene, including the throne and the duel, makes sense for a detailed and expansive diorama.
Indeed, 570 LEGO pieces can contribute to creating a fairly large and extensive set that captures various elements of the throne room, including the iconic throne, the surrounding architecture, and other features that would bring the duel between Darth Sidious, Yoda, and Luke Skywalker to life.
For a simpler version or a small representation of the throne itself, around 190 pieces might suffice. This highlights how the complexity and detail of the build can greatly influence the number of pieces required. Building scenes like this with LEGO can be a fun and creative way to recreate memorable moments from the Star Wars universe! If you have any more specific questions or need ideas related to this project, feel free to ask!