A Pawn Sacrifice in the right Moment!
Some years ago I played an OTB-game against a very strong opponent. And already in the opening I came into great difficulties. But see yourself:
At this point of the game I knew surely that I would be defeated within the next ten moves if not something extraordinary would happen. So I looked out for a chance!
And indeed, it came. After a slight inaccuracy of him I could sacrifice a pawn and got rid of my bad pawn structure. More than this, I could complete my development and got active piece play. Not a bad business, I guess! But see yourself: