Richter-Veresov Attack: Two Knights System, Grünfeld Defense
ECO D01
Move order
1. d4 Nf6 2. Nc3 d5 3. Bg5 Nbd7 4. Nf3 g6
Ideas
ECO D covers queen-pawn games and closed structures, including many Gambits and the Queen's Gambit complex. White builds a pawn center and keeps the position more closed than after 1. e4. This entry tracks a longer branch in the opening tree. Use the diagram and SAN list to recognize the tabiya, then try the line against Maia to explore typical plans in practice.