Talk:Chess Opening Theory/1. d4/1...Nf6/2. c4/2...e5/3. dxe5/3...Ng4/4. Bf4/4...Nc6/5. Nf3/5...Bb4/6. Nbd2/6...Qe7/7. e3/7...Ngxe5/8. Nxe5/8...Nxe5/9. Be2