see this game and how @idontknow2playchess gave a shock to his opponent and white resigned white thought he could win with Queen to H5 and that's where the Shock came
Black idontknow2playchess
white abby8495
any one want's to say some thing
If you put King and Queen on an open file and then wait until a rook appears there, bad things should not come as a shock.
Even if Bg4+ isn't a check...
But it is.
I am not sure how them taking a queen you basically gave away is shocking. When you play badly, you get punished.
Black's play is far superior to White's right from the start of the game.
see this game and how @idontknow2playchess gave a shock to his opponent and white resigned white thought he could win with Queen to H5 and that's where the Shock came