Prepare yourself for the ultimate puzzling challenge. In this puzzle every single piece is a different shape but the entire same colour. It’s a perfect challenge for any veteran puzzle builders. Krypt Silveris a 631 piece premium puzzle by Ravensburger. It is a challenging puzzle with every piece being the same colour but a different shape. This piece comes out to 70cm x 50cm in size. Perfect to do with family, friends, or even as your own project.