Full explanation — Button (BTN)
The Button, often abbreviated as BTN, refers to the position of the virtual dealer, indicated by a physical disc. It is universally regarded as the most profitable and powerful position in poker. From the Button, a player acts last on the flop, turn, and river, granting them maximum information about their opponents' actions before making their own decisions. This positional advantage allows for a wider range of hands to be played profitably and enables effective bluffing and value betting, making it a crucial strategic spot.