Part: Part Five - Betting Before the Flop

Open-shoving a short stack

Pre-flop
Blinds 100 / 200Pot 300 (1.5 BB)COA♠10♦● 2,000 (10 BB)YOU10 BB stackSB● 25,000 (125 BB)posts 100 (0.5 BB)BB● 25,000 (125 BB)posts 200 (1 BB)D

You have a 10 BB stack and it folds to you on the cutoff with A♠T♦.

10 BB deep, folded to you on the cutoff with A♠T♦. Best?

WhyOpen-shove. At ~10 BB a standard raise commits a third of your stack and leaves you guessing post-flop. Jamming a solid hand like A-T from late position maximizes fold equity and keeps good equity when called. This is push-or-fold territory.
What happensYou shove 10 BB; the blinds fold.  You pick up the blinds.
Short-stacked, A-T from the cutoff is an open-jam, not a raise-fold - you take the dead money now and avoid awkward post-flop spots with a stack too small to maneuver.

Around 10 BB, late-position play is push-or-fold - open-shove your playable hands instead of making a committing raise.