I'm looking for an historic chess game, and I don't remember if Capablanca or Kasparov played it. In it, both queens are face to face and neither let pass the other one, for almost 7 or 10 movements, in the middle of the board. I remember saw it on chessgames.com in 2005.
The queens moved horizontally, 1 or 2 spots. One was in the above row and the second one in the bottom, for e.g. the black queen in the 5th row and the white queen in the 4th row. So neither can't go forward, as they are blocking each other. I'm not sure if it was Capablanca or Kasparov, only about 70% sure.