Texas Hold’em rules

1. The button is also the small blind. Preflop, the button / small blind acts first.
2. If the small blind merely completes to the big blind, the big blind still has a check-or-raise option; that call does not immediately end preflop.
3. On the Flop, Turn, and River, the non-button / big blind acts first and the button acts last.
4. The button swaps next hand, so blinds and action order swap as well.

1. A player folds: the whole hand ends immediately.
2. No wager: the street closes after every active player has checked.
3. A wager exists: the street closes after every active player has had the right to respond and commitments are matched, or only all-in players remain.
4. A call does not universally close a street; the heads-up small blind's preflop completion is the common exception.

1. Wager-to means the actor's cumulative commitment on this street, not merely the chips added by this click.
2. A full raise must at least match the previous full bet-or-raise increment and gives the opponent another response.
3. A short all-in below a full raise normally does not reopen raising for a player who has already acted.
4. When a call uses the entire remaining stack, it is an all-in call and the interface shows it as one action.

When neither player can act, betting stops but board order does not change. An all-in on the Flop requests one Turn first, then one River after the Turn is confirmed. A preflop all-in requests the three-card Flop, then one Turn, then one River.

Live-hand replay currently covers one heads-up no-limit Hold'em hand. It does not model multiway pots, side pots, rake, tournament ICM, insurance, multiple runouts, or room-specific rules. Inputs outside this scope must not be treated as supported real-table behavior.