When looking at basic opening guides and chess principles, I stumbled over this theory game, where White mates Black in the opening sequence, via a Queen sacrifice.

It is an entertaining game, and although is probably very rarely seen in actual play; it nevertheless illustrates how well Knights and Bishops can work together, and how sacrifices can be used to devastating effect. Enjoy….

1. e4 e5, 2. Nf3 d6, 3. Nc3 Bg4, 4. Bc4 b6 ??, 5. Nxe5 Bxd1, 6. Bxf7+ Ke7, 7. Ne5#    1-0