I invented another trap in the Marshall Defense to the Queen's Gambit. Continuing from the line given in the previous post (4...Nc6?!), White can vary with 6.d5!? Then 6...Nb8! is best. Most of my opponents on the Internet, however, have played 6...Nxe4?, expecting 7.dxc6? Qxd1+ 8.Kxd1 Nxf2+ 9.Kel Nxh1. However, 7.Be3! (guarding the f-pawn and threatening 8.dxc6) refutes this. Black loses the queen knight after 7...Nb4 8.Qa4+, or the king knight after 7...Nb8 8.Qa4+.