Queen's Gambit Declined: Baltic Defense, Pseudo-Slav
ECO D02
Move order
1. d4 d5 2. Nf3 Bf5 3. c4 e6 4. Nc3 c6
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.