Table
Button in poker
The seat that acts last after the flop, marked by the dealer disc.
The dealer button marks who receives cards last and, more importantly, who acts last on every betting round after the flop.
That informational edge is worth so much that button strategy barely resembles play from any other seat: the button opens roughly 45% of hands when the action folds to it, against about 13% from under the gun.
The button moves one seat clockwise after every hand, so the advantage is shared evenly. Everything you lose posting the blinds is meant to come back when the button reaches you.
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