Diabolical queen sacrifice

Here's a computer game between Chessmaster (2964) playing white and one of its avatars called Vlad (1846) playing black. It has what seems to me a diaolically clever tactical sequence featuring a queen sacrifice by white, beginning on move 9. On the other hand, I'm just starting out in chess, and so I wonder if more experienced players recognize this as unremarkable, or perhaps the result of mistakes by black.

3 of black's first 6 moves are by the Queen with nothing to show for it

that queen sac was pretty sweet.  there had to be a mistake somewhere but that was a really cool sequence

Why didnt black take the pawn on b7 with his king?

Damn computers are good.

Yeah my computer beat me in chess too, but it was no match for me when it came to kickboxing.