Button (BTN) (BTN)

Also known as: Button, BTN, Dealer Button

The best seat at the table. The button acts last on every postflop street, opens the widest range, and is the dealer marker that rotates clockwise each hand.

The button (BTN) is the best seat at the table, named after the dealer button — the marker that designates who is nominally dealing and rotates one seat clockwise after every hand. Whoever holds it has a decisive structural edge.

Why the button dominates:

• In position on every postflop street: against any caller, the button acts last on the flop, turn, and river, banking all the advantages of position — information, equity realization, pot control, and cheap bluffs.
• Widest RFI range: with only the two blinds left to act, you open the largest range at the table — often the top ~40–50% of hands in 6-max — because position lets even weak hands realize equity profitably.
• Prime steal seat: raising to take the blinds' dead money is maximally effective from here, since only two forced-bet players can defend.

The button is also a positional anchor for the whole table: every other seat is defined by its distance from it. Master button play first — it is where the most money is made, and where loose, aggressive, in-position poker is mathematically justified. When in doubt on the button, the answer leans toward raise.