Orthodox Defense
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 Be7 5.Bg5

The main line. After 5...O-O 6.e3 h6 7.Bh4, Black plays ...b6 (Tartakower) or ...Nbd7 (Orthodox main). Classical and solid.
A defesa mais sólida e mais jogada contra 1.d4, estratégia clássica no seu melhor.
1.d4 d5 2.c4 e6

O Gambito da Dama Recusado surge após 1.d4 d5 2.c4 e6. As pretas recusam o peão de c4 para reforçar o seu centro, aceitando um bispo das casas claras ligeiramente encerrado em troca de uma estrutura rochosa. O QGD é a abertura que definiu a estratégia clássica: manobras lentas, luta pelo centro via ...c5 ou ...e5 e planos claros baseados na estrutura de peões. Utilizada por todos os campeões do mundo desde Lasker, continua a ser a escolha preferida de quem quer uma defesa a 1.d4 sem risco de ser atropelado tacticamente. As variantes principais, Ortodoxa, Lasker, Tartakower e Cambridge Springs, oferecem cada uma um plano estratégico distinto.
Each variation below comes with a diagram and the main plan. Click "Train this opening" to drill every line with spaced repetition.
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 Be7 5.Bg5

The main line. After 5...O-O 6.e3 h6 7.Bh4, Black plays ...b6 (Tartakower) or ...Nbd7 (Orthodox main). Classical and solid.
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.cxd5 exd5

White aims for the minority attack (b2-b4-b5-bxc6). Black must counter with kingside activity...f6 and ...e5, or a rook lift ...Re8-e6.
1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 Be7 5.Bg5 h6 6.Bh4 O-O 7.e3 Ne4

Black simplifies by exchanging bishops on e7. After 8.Bxe7 Qxe7 9.Qc2 Nxc3 10.Qxc3, Black has traded pieces and eased the position.
The QGD is one of the easiest defenses to learn, just develop pieces to their natural squares. Focus on the Orthodox Defense main line.
Add the Lasker Defense for simplification. Against the Exchange Variation, learn the minority attack defense with ...f6-...e5 or rook lifts.
Study the Cambridge Springs and Tartakower for flexibility. Choose your QGD subsystem based on White's move order.
Yes, one of the most beginner-friendly Black defenses. Natural piece development, clear plans, and lower theory than the King's Indian or Grünfeld. A lifetime defense for many players.
After the Exchange Variation (4.cxd5 exd5), White plays b2-b4-b5 to attack Black's c6 pawn, creating a weak isolated c-pawn. Petrosian's 1966 World Championship match showed the ultimate execution. Black counters with kingside activity.
QGD for solid structure and slower strategic play. QGA for active pieces and faster development (at the cost of giving up the center temporarily). Both are fully playable at every level.
The Orthodox keeps pieces on the board with ...Nbd7 and prepares ...c5. The Lasker Defense exchanges pieces early with ...Ne4, simplifying the position. Lasker = drawing tendency; Orthodox = rich middlegame play.
Constantly, at every World Championship. Carlsen, Anand, Kramnik, and Caruana have all used it. The Tartakower Defense (6...h6 7.Bh4 b6) and Orthodox main lines remain fixtures of elite chess.
Aceitar o peão de c4 e libertar o bispo das casas claras: defesa activa a 1.d4.
Um esquema universal contra todas as defesas pretas: pouca teoria, planos repetíveis, arma moderna de Carlsen.
A defesa de elite contra 1.d4: cravada do cavalo de c3 para desequilíbrios estruturais imediatos.
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