Here is a game where my opponent gives away quite a bit of material in exchange for piece activity. I can't say with certainty whether these sacs were intentional, but in my novice opinion they were unsound. Sound or not we ended up in a situation where I'm up huge in material but I'm frantically trying to defend. I knew, though, that if I weathered the storm the material would win big in the end.
I don't think this particular game is really noteworthy, but it is a personal lesson for me. That you can
give up big material for piece activity, but if you fail to capitalize you'll pay dearly later.
[Event "Open invite"]
[White "Knight Lightning"]