Chess Opening Theory/1. e4/1...e5/2. Nf3/2...Nf6/3. Nxe5/3...Nc6/4. Nxf7/4...Kxf7/5. d4/5...Nxe4/6. Qh5/6...Kg8

6...Kg8??

This blunder loses immediately. White should now play: 7.Qd5#!

1.e4 e5 2.Nf3 Nf6 3.Nxe5 Nc6 4.Nxf7 Kxf7 5.d4 Nxe4 6.Qh5+ Kg8??