Queens Gambit Declined Orthodox Defense (1.d4 Nf6 2.c4 e6 3.Nf3 d5 4.Nc3 Be7 5.Bg5 O-O 6.e3 Nbd7) Chess Puzzles

Queens gambit declined orthodox defense is the QGD mainline approach where Black accepts the queen’s gambit but aims for a solid, classical setup rather than immediate counterplay. The defining feature is the orthodox central structure after the typical QGD move order (most commonly involving …Nf6, …e6, and …Be7) that supports …d5 and piece development without early pawn breaks. As a result, White often faces a stable center and must choose between slow buildup and timely central expansion.