Poker Betting -The Moving Button Rule

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:

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-in

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.

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.

Sleepers

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

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. A pot built from this betting structure is known as a kill pot.

In some card rooms, the player with the kill blind acts last after the big blind regardless of where they are seated in relation to the dealer button. For example, in a five-handed game where player E has earned the kill button and player A is the dealer, the order of action is player D, player A, player B (the small blind), player C (the big blind), player E (the kill blind). After the flop, betting returns to normal.

Rules on how the kill is activated vary. Sometimes the kill is activated by the previous pot being over a particular value. One common 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. Another common way a kill is activated is when a single player wins two pots in a row, requiring the winner to post a kill blind on the next hand. The kill will typically remain active if the player with the kill blind continues to win consecutive hands. If a player has won the previous hand and splits the pot with another player, that may also activate a kill hand. If a pot is split and neither player has won the previous hand, winning the pot of the next hand does not typically activate a kill 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.
Playing spread-limit requires some care to avoid giving easy tells with one's choice of bets. Beginners frequently give themselves away by betting high with strong hands and low with weak ones, for instance. It is also harder to force other players out with big bets.