The top-tier TrompowskyNowadays, the list of requirements for an opening repertoire is long: being sound and sustainable; not requiring much memorisation; offering great attacking chances; making your opponent think early on etc The time of finding a minimal advantage from the opening has passed, and we are better off with a more practical approach simply understanding the position better than our opponent does. The Repertoire for White 1. d4 2. Bg5! from IM Robert Ris