Procedure

Players in a poker game act in turn, in clockwise rotation (acting out of turn is a breach of etiquette and can negatively affect other players). When it is a player's turn to act, the first verbal declaration or action he takes binds him to his choice of action; this is to prevent a player from changing his action after seeing how other players react to his first action.

A player may fold by surrendering his cards (some games may have specific rules--for example, in stud poker one must turn one's upcards face down). A player may check by rapping the table or making any similar motion. All other bets are made by placing chips in front of the player, but not directly into the pot (this is called "splashing" the pot, and is also a breach of etiquette, because it prevents other players from verifying the bet amount).

Open

The act of making the first voluntary bet in a betting round is called opening the round. On the first betting round, it is also called opening the pot. Some poker variations have special rules about opening a round that may not apply to other bets. For example, a game may have a betting structure that specifies different allowable amounts for opening than for other bets, or may require a player to hold certain cards to open.

Call

To call is to match a bet or raise. A betting round ends when all active players have bet an equal amount or no opponents call a player's bet or raise. If no opponents call a player's bet or raise, the player wins the pot and the hand is over.

The second and subsequent calls of a particular bet amount are sometimes called overcalls. A player calling a raise before he or she has invested money in the pot in that round is cold calling. For example, if in a betting round, Alice bets, Bob raises, and Carol calls, Carol "calls two bets cold". A player calling instead of raising with a strong hand is smooth calling, a form of slow play.

In public card rooms and casinos where verbal declarations are binding, the word "call" is such a declaration. In particular, the practice of saying "I call, and raise $100" is considered a string raise and is not allowed. Saying "I call" commits you to the action of calling, and only calling.

Check

If no one has yet opened the betting round, a player may check, which is equivalent to calling the current bet of zero. When checking, a player declines making a bet; indicating that he does not choose to open, but that he wishes to keep his cards and retain the right to call or raise later in the same round if an opponent opens. In games played with blinds, players may not check on the opening round because they must either match (or raise) the big blind or fold. A player with a live big blind who chooses not to exercise his right to raise is said to check his option. If all players check, the betting round is over. A common way to signify checking is to tap the table with a fist or an open hand.

Raise

To raise is increase the size of the bet required to stay in the pot, forcing all subsequent players to call the new amount. If the current bet amount is nothing, this action is considered the opening bet. A player making the second (not counting the open) or subsequent raise of a betting round is said to reraise.

Standard poker rules require that any raise must at least equal the amount of the previous raise. For example, if a player in a spread-limit or no-limit game bets $5, the next player may raise by another $5 or more, but he may not raise by only $2, even if that would otherwise conform to the game's betting structure. The primary purpose of this rule is to avoid game delays caused by "nuisance" raises (small raises of large bets that do not affect the bet amount much but that take time). This rule is overridden by table stakes rules, so that a player may in fact raise a $5 bet by $2 if that $2 is his entire remaining stake.

In most casinos, fixed-limit and spread-limit games cap the total number of raises allowed in a single betting round (typically three or four, not including the opening bet of a round). For example in a casino with a three-raise rule, if one player opens the betting for $5, the next raises by $5 making it $10, a third player raises another $5, and a fourth player raises $5 again making the current bet $20, the betting is said to be capped at that point, and no further raises beyond the $20 level will be allowed on that round. It is common to suspend this rule when there are only two players betting in the round (called being heads-up), since either player can call the last raise if they wish. Pot-limit and no-limit games do not have a limit on the number of raises.

Fold

To fold is to discard one's hand and forfeit interest in the current pot. Folding may be indicated verbally or by discarding one's hand facedown into the pile of other discards called the muck. In stud poker played in the United States, it is customary to signal folding by turning all of one's cards face down. In casinos in the United Kingdom, a player folds by giving his hand as is to the "house" dealer, who will spread the hand's upcards for the other players to see before mucking them.

It is a serious breach of etiquette to fold out of turn, that is, when it is not the folding player's turn to act, because this can harm other players. For example, if there are three players remaining and the first player in turn bets, the third player folding out of turn gives valuable strategic information to the second player (who is in turn at this point), to the detriment of the bettor. In some games, even folding in turn when a player is entitled to check (because there is no bet facing the player) is considered an out of turn fold since it gives away information to which other players would otherwise not be entitled. Finally, if a player folds out of turn in a stud poker game, the player in turn may demand that his upcards remain exposed until he has completed his turn. When folding, concealed cards should not be exposed unless no further betting is possible in the hand (i.e., unless the fold awards the pot to the only remaining player). A player is never required to expose his concealed cards when folding prior to the showdown.

Forced bets

All poker games require some forced bets in order to create an initial stake for the players to contest. The requirements for forced bets, and the betting limits of the game (see below) are collectively called the game's betting structure.

Ante

An ante is a forced bet in which each player places an equal amount of money or chips into the pot before the deal begins. In games where the acting dealer changes each turn, it is not uncommon for the players to agree that the dealer provides the ante for each player. This simplifies betting, but causes minor inequities if other players come and go or miss their turn to deal.

Blinds

A blind or blind bet is a forced bet placed into the pot by one or more players before the deal begins, in a way that simulates bets made during play. The most common use of blinds as a betting structure calls for two blinds: the player after the dealer blinds about half of what would be a normal bet, and the next player blinds what would be a whole bet. Sometimes only one blind is used, and sometimes three. In the case of three blinds (usually one quarter, one quarter, and half a normal bet amount), the first blind goes "on the button", that is, is paid by the dealer.

For example, in a $2-$4 limit game, the first player to the dealer's left (who, if not for the blinds, would be the first to act) makes a blind bet of $1, and the next player in turn posts a big blind of $2. After the cards are dealt, play begins with the next player in turn (third from the dealer), who must either call $2, raise, or fold. When the betting returns to the player who blinded $1, he must equal the bet facing him (toward which he may count his $1), raise, or fold. If there have been no raises when action first gets to the big blind (that is, the bet amount facing him is just the amount of the big blind he posted), the big blind has the option to raise or check. This right to raise (called the option) occurs only once: if his raise is now called by every player, the first betting round closes as usual.

In some fixed-limit and spread-limit games, the big blind amount may be less than the normal betting minimum. Players acting after a sub-minimum blind have the right to call the blind as it is, even though it is less than the amount they would be required to bet, or they may raise the amount needed to bring the current bet up to the normal minimum, called completing the bet. For example, a game with a $5 fixed bet on the first round might have blinds of $1 and $2. Players acting after the blind may either call the $2, or raise to $5. After the bet is raised to $5, the next raise must be to $10 in accordance with the normal limits.

When a player in the blinds leaves the game

When one or more players in the small or big blinds leaves the game, an adjustment is required in the positioning of the blinds and the button. The two most common tournament rules for handling this situation are the dead button and the moving button rules. In online card rooms, a simplified moving button rule is usually employed. Note that other variations on these rules exist. ^[1][2][3]

Dead button rule

Under the dead button rule, the big blind is posted by the player due for it, and the small blind and button are positioned accordingly, even if this means the small blind or the button is placed in front of an empty seat, giving the same player the privilege of last action on consecutive hands.

• If the small blind busts out (leaves the game), the button moves to the seat vacated by the eliminated small blind. The player who was the big blind now posts the small blind and the player to his left posts the big blind. Since the button is now located at an empty seat, the player who was the button will, in effect, be the button once again.

• If the big blind busts out, the button moves to the player who was the small blind and the player to the left of the eliminated big blind posts the big blind. There is no small blind for that hand. On the following deal, the button moves to the empty seat vacated by the eliminated player and the two players to the left post the normal blinds. Since the button is now located at an empty seat, the player who was the original small blind will, in effect, be the button once again.

• If both blinds bust out, the same player will effectively be the button three hands in a row. The button moves to the now empty seat vacated by the eliminated small blind and the player to the left of the eliminated big blind posts the big blind. There is no small blind for that hand. On the following deal, the button moves to the next empty seat (the seat vacated by the eliminated big blind player) and the two players to the left post the normal blinds.

Moving button rule

Under the moving button rule, the button always moves forward so that a player never has the right to act last for two consecutive hands. The blinds adjust accordingly, which may result in more than one small blind, and/or more than one big blind being posted in a given hand.

These rules are always followed when assigning the blinds:

1. The button always moves forward to the next seat occupied by a player.
2. The player two seats to the left of the button always posts a big blind, as well as any players that the big blind has skipped past.
3. Any player that posted a big blind in the previous hand, must post a small blind.

For the following examples, consider a hand just finished with Alice, Bob, Carol, David, and Ellen seated in order after the previous hand's dealer. Alice was the small blind in the previous hand, and Bob was the big blind.

• Under normal conditions, Alice will have the button the next hand, Bob will post the small blind, and Carol will post the big blind.
• If Alice busts out, or steps away from the table, the button will skip past the vacated seat to Bob. Bob will post his small blind on top of the button. Carol and David will both post big blinds.
  • The subsequent hand, Carol will have the button. Carol and David will both post small blinds, and Ellen will post the big blind.
• If Bob busts out or leaves the table, the button will move to Alice. Carol and David will both post big blinds.
  • The subsequent hand, Carol will post a small blind on the button. David will post a small blind and Ellen will post the big blind.
• If Alice and Bob both bust out, or step away from the game, the button will skip ahead to Carol. Carol, David, and Ellen will all post big blinds.
  • The subsequent hand, David will have the button. Carol will post a small blind behind the button, as well as David and Ellen posting small blinds, and the player after Ellen posting the big blind.

The moving button system can cause irregular blinds for several hands after a player leaves the game, and further complications can arise if players bust out on consecutive hands. However, the blinds will always eventually resolve to their normal positions.

Simplified moving button rule

Under the simplified moving button rule, normally used in on-line card rooms, the button always moves forward to the next player and the small and big blinds post in the two seats to the left of the button. Players may miss blinds.

When there are only two players

The normal rules for positioning the blinds do not apply when there are only two players at the table. The player on the button is always due the small blind, and the other player must pay the big blind. The player on the button is therefore the first to act before the flop, but last to act for all remaining betting rounds.

A special rule is also applied for placement of the button whenever the size of the table shrinks to two players. If three or more players are involved in a hand, and at the conclusion of the hand one or more players have busted out such that only two players remain for the next hand, the position of the button may need to be adjusted to begin heads-up play. The big blind always continues moving to the left, and then the button is positioned accordingly.

For example, in a three-handed game, Alice is the button, Bob is the small blind, and Carol is the big blind. If Alice busts out, the next hand Bob will be the big blind, and the button will skip past Bob and move to Carol. On the other hand, if Carol busts out, Alice will be the big blind, Bob will get the button and will have to pay the small blind for the second hand in a row.

Bring-ins

A bring-in is a type of forced bet that occurs after the cards are initially dealt, but before any other action. One player, usually chosen by the value of cards dealt face up on the initial deal, is forced to open the betting by some small amount, after which players act after him in normal rotation.

The bring-in is normally assigned on the first betting round of a stud poker game to the player whose upcards indicate the poorest hand. For example, in traditional high hand stud games and high-low split games, the player showing the lowest card pays the bring-in. In low hand games, the player with the highest card showing pays the bring-in. The high card by suit order can be used to break ties if necessary.

In most fixed-limit and some spread-limit games, the bring-in amount is less than the normal betting minimum. The player forced to pay the bring-in may choose either to pay only what is required or to make a normal bet. Players acting after a sub-minimum bring-in have the right to call the bring-in as it is, even though it is less than the amount they would be required to bet, or they may raise the amount needed to bring the current bet up to the normal minimum, called completing the bet. For example, a game with a $5 fixed bet on the first round might have a bring-in of $2. Players acting after the bring-in can either call the $2, or raise to $5. After the bet is raised to $5, the next raise must be to $10 in accordance with the normal limits.

In a game where the bring-in is equal to the fixed bet (this is rare and not recommended), the game must either allow the bring-in player to optionally come in for a raise, or else the bring-in must be treated as live in the same way as a blind, so that the player is guaranteed his right to raise on the first betting round if he chooses.

Straddle bets

A straddle bet is an optional (voluntary) blind bet made by a player before receiving his cards. Straddles are only used in games played with blind structures. Straddles are normally not permitted in tournament formats.

Live straddle

The player immediately to the left of the big blind may place a live straddle blind bet. The straddle must be a raise over the big blind. A straddle is a live bet; the player placing the straddle effectively becomes the "bigger blind". Action begins with the player to the left of the straddle. If action returns to the straddle without a raise, the straddle has the option to raise. The player to the left of a live straddle may re-straddle by placing a blind bet raising the original straddle. ^[4][3]

Mississippi straddle

A Mississippi straddle buys last action before the flop. House rules permitting Mississippi straddles are common in the southern United States. Usually, a Mississippi straddle can be made from any position, although some house rules only permit the button or the player to the right of the button to place a Mississippi straddle. Like a live straddle, a Mississippi straddle must be at least the minimum raise. Action begins with the player to the left of the straddle. If, for example (in a game with $10-$25 blinds), the button puts a live $50 on it, the first player to act would be the small blind, followed by the big blind, and so on. If action gets back to the straddle with no raise, the straddle has the option of raising. The player to the right of a Mississippi straddle may re-straddle by placing a blind bet raising the original straddle. ^[5]

Sleepers

A sleeper is a blind raise placed from any position at the table other than under the gun.^[6]

Limits

Betting limits apply to the amount a player may open or raise, and come in four common forms: no limit, pot limit (the two collectively called big bet poker), fixed limit, and spread limit.

All such games have a minimum bet as well as the stated maximums, and also commonly a betting unit, which is the smallest denomination in which bets can be made. For example, it is common for games with $20 and $40 betting limits to have a minimum betting unit of $5, so that all bets must be in multiples of $5, to simplify game play. It is also common for some games to have a bring-in that is less than the minimum for other bets. In this case, players may either call the bring-in, or raise to the full amount of a normal bet, called completing the bet.

Outside of the United States, pot-limit and no-limit games are the most common. Many American home games are played with a spread limit, while casino games are often played with spread or fixed limits, though many casinos may have pot-limit or no-limit games as well. Fixed-limit and spread-limit games emphasise the skill of estimating odds, whereas pot-limit and no-limit games emphasize the skills of game theory and psychology. Almost all poker players believe that pot-limit and no-limit poker involve more skill than fixed-limit play. A few prominent players, most notably Mason Malmuth, believe that the richer tactics make fixed limit more skilled. Although the main event at the World Series of Poker is played no limit, most high stakes cash games are fixed limit, so it is unclear which format is the experts' choice.

Fixed limit

In a game played with a fixed-limit betting structure, a player chooses only whether to bet or not - the amount is fixed by rule. To enable the possibility of bluffing, the fixed amount generally doubles at some point in the game. This double wager amount is referred to as a big bet.

For example, a four-round game called "20 and 40 limit" (usually written as $20/$40) may specify that each bet in the first two rounds is $20, and that each big bet used in the third and fourth rounds is $40. This amount applies to each raise, not the total amount bet in a round, so a player may bet $20, be raised $20, and then re-raise another $20, for a total bet of $60, in such a game.

Maximum number of raises

Most fixed-limit games will not allow more than a predefined number of raises in a betting round. The maximum number of raises depends on the casino house rules, and is usually posted conspicuously in the card room. Typically, an initial bet plus three raises, or a bet and four raises, are allowed.

Consider this example in a $20/$40 game, with a posted limit of a bet and three raises. During a $20 round with three players, play could proceed as follows:

• Player A bets $20.
• Player B puts in another bet, raises another $20, making it $40 to play.
• Player C puts in a third bet, raising another $20 on that, thus making it $60 to play.
• Player A puts in the fourth bet (she is usually said to cap the betting).

Once Player A has made her final bet, Players B and C may only call another two and one bets (respectively); they may not raise again because the betting is capped.

A common exception in this rule practiced in some card rooms is to allow unlimited raising when a pot is played heads up (when only two players are in the hand at the start of the betting round). Usually, this has occurred because all other players have folded, and only two remain. Many card rooms will permit these two players to continue re-raising each other until one player is all in.

Kill game

Sometimes a fixed-limit game is played as a kill game. Such a game is played with an additional blind, called the kill blind. The kill blind can be posted from any position at the table. The amount posted is typically twice the typical blind for that game. For example, in a $20/$40 game, the large blind is typically $20. If this game were played with a full kill, the kill blind would be $40. It is also common to find a game with a half kill. For example, when the kill is active in $4/$8 game with a half kill, the game is played at a $6/$12 limit. When the kill blind is posted, it changes the stakes of the game. For that hand, the game is played as if the game were a higher limit. In a $20/$40 game with a full kill blind posted, the hand is played as if the limit were $40/$80. The kill is said to be active when the kill blind is posted and the game is played at the higher limit.^[7][3]

Rules on how the kill is activated vary. On the east coast of the USA, the kill is typically activated by the previous pot being over a particular value. The most typical value is ten times the value of the large bet (in a $20/$40 game, the kill would be active if the previous pot won was greater than $400). The winner of that pot is required to post the kill blind for the next hand. In the Pacific Northwest of the USA, a kill is typically activated when a particular player wins two pots in a row. After that player wins her second pot, she is required to post a kill blind and the kill is active for the next hand.

The term kill, when used in this context, should not be confused with killing a hand, which is a term used for a hand that was made a dead hand by action of a game official.

Spread limit

A game played with a spread-limit betting structure allows a player to raise any amount within a specified range.

For example, a game called "one to five limit" allows each bet to be anywhere from $1 to $5 (subject to other betting rules). These limits are typically larger in later rounds of multi-round games. For example, a game might be "one to five, ten on the end", meaning that early betting rounds allow bets of $1 to $5, and the last betting round allows bets of $1 to $10.

Pot limit

A game played with a pot-limit betting structure allows any player to raise up to an amount equal to the size of the whole pot before the raise.

For example, let us assume that there is $10 in the pot at the start of a betting round. The first player may open the betting for up to $10. If he does in fact open for $10, the next player may raise to $40 (after calling the $10 bet, the total amount of the pot is $30, so he may raise $30). The third player would be entitled to raise to $140 (after calling $40, the pot would contain $100, thus he may raise $100). Any player may also raise less than the maximum so long as the amount of the raise is equal to or greater than any previous bet or raise in the same betting round.

Some pot-limit games make exceptions to the method described above when calculating the maximum raise in the betting round before the flop:

• Some structures treat the little blind as if it were the same size of the big blind in computing pot size. In such a structure, a player can open for a maximum of four times the size of the big blind. For example, if the blinds are $5 and $10, a player may open with a raise to $40. (The range of options is to either open with a call of $10, or raise in increments of five dollars to any amount from $20 to $40.) Subsequent players also treat the $5 as if it were $10 in computing the pot size, until the big blind is through acting on the first betting round.^[8]
• If the action folds all the way around to the small blind, the maximum amount the small blind can raise is also not universally agreed upon. Some games treat the big blind as a "raise" of the small blind for the purpose of calculating the maximum raise
  retrieved