ADD N TO (X) Revenge Of The Black Regent (1999 UK Mute Records 3-track promotional CD single including Radio Version Album Version & The March Of Pure Mathematical Evil That Ends And Results In War - Radio Version custom picture sleeve RCDMUTE231) 1. Revenge Of The Black Regent - Radio Version 4:022. The March Of Pure Mathematical Evil That Ends And Results In War - Radio Version 4:593. Revenge Of The Black Regent - Album Version 6:12