[Closed] Heads Up Play

one basic principle is to raise 2,5-3xBB if you have a 10+BB stack and an above average hand and push if you have less than 10BB. pushing with like 20BB against an opponent that has you covered provides a great tournament equity loss if you're called and being dominated. that way you have an easy fold if you raised a hand that you don't want to call an all-in re-raise with. making a standard raise with a small stack makes no sense because you're pot commited anyways and your fold equity isn't as high as it would be if you would have shoved.
hope I was able to help you..