1. Main line 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 Choose a line 1. Main line 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 2. Alekhine Variation 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. Qa4+ 3. Queen's Gambit Declined: Westphalian Variation 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. Bg5 Nbd7 6. e3 c5 Close 1. Main line 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 2. Alekhine Variation 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. Qa4+ 3. Queen's Gambit Declined: Westphalian Variation 1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 Bb4 5. Bg5 Nbd7 6. e3 c5 Next