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Simply Scheme

The thirteen out straight draw is the most common big straight draw, and it is commonly called a wrap draw. A common holding is four running cards that wrap around two cards on the board. With 9875, on a flop of 64x, the player has thirteen outs to a straight - four. Poker Straight Wrap Around of this website are hosted by several game developers. One of the most prominent ones is Evolution Gaming, a company whose live games are mostly Poker Straight Wrap Around hosted in Latvia. It currently has the largest live Poker Straight Wrap Around dealer casino studio in Europe and is generally considered a leader.

:Introducing Computer Science 2/e Copyright (C) 1999 MITStraight
BrianHarvey
University of California, Berkeley
MatthewWright
University of California, Santa Barbara

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The idea of this project is to invent a procedure poker-valuethat works like this:

As you can see, we are representing cards and hands just as in theBridge project, except that poker hands have only fivecards.[1]

Here are the various kinds of poker hands, in decreasing order of value:

Royal flush: ten, jack, queen, king, and ace, all of the same suit
Straight flush: five cards of sequential rank, all of the same suit
Four of a kind: four cards of the same rank
Full house: three cards of the same rank, and two of a second rank
Flush: five cards of the same suit, not sequential rank
Straight: five cards of sequential rank, not all of the same suit
Three of a kind: three cards of the same rank, no other matches
Two pair: two pairs of cards, of two different ranks
Pair: two cards of the same rank, no other matches
Nothing: none of the above

An ace can be the lowest card of a straight (ace, 2, 3, 4, 5) orthe highest card of a straight (ten, jack, queen, king, ace), but a straightcan't 'wrap around'; a hand with queen, king, ace, 2, 3 would be worthless(unless it's a flush).

Notice that most of the hand categories are either entirely about the ranksof the cards (pairs, straight, full house, etc.) or entirely about thesuits (flush). It's a good idea to begin your program by separating therank information and the suit information. To check for a straight flush orroyal flush, you'll have to consider both kinds of information.

In what form do you want the suit information? Really, all you need is atrue or false value indicating whether or not the hand is a flush, becausethere aren't any poker categories like 'three of one suit and two ofanother.'

What about ranks? There are two kinds of hand categories involving ranks: the ones about equal ranks (pairs, full house) and the ones about sequentialranks (straight). You might therefore want the rank information in twoforms. A sentence containing all of the ranks in the hand, in sorted order,will make it easier to find a straight. (You still have to be careful aboutaces.)

Can

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For the equal-rank categories, what you want is some data structure thatwill let you ask questions like 'are there three cards of the same rankin this hand?' We ended up using a representation like this:

One slightly tricky aspect of this solution is that we spelledout the numbers of cards, one to four, instead of using the moreobvious (1 Q 2 3 2 4). The reason, as you can probably tell just bylooking at the latter version, is that it would lead to confusion betweenthe names of the ranks, most of which are digits, and the numbers ofoccurrences, which are also digits. More specifically, by spelling out thenumbers of occurrences, we can use member? to ask easily if there isa three-of-a-kind rank in the hand.

You may find it easier to begin by writing a version that returns only thename of a category, such as three of a kind, and only after you getthat to work, revise it to give more specific results such as threesixes.

Extra Work for Hotshots

In some versions of poker, each player gets seven cards and can choose anyfive of the seven to make a hand. How would it change your program if theargument were a sentence of seven cards? (For example, in five-card pokerthere is only one possible category for a hand, but in seven-card you haveto pick the best category that can be made from your cards.) Fix yourprogram so that it works for both five-card and seven-card hands.

Another possible modification to the program is to allow for playing with'wild' cards. If you play with 'threes wild,' it means that if there isa three in your hand you're allowed to pretend it's whatever card you like.For this modification, your program will require a second argument indicatingwhich cards are wild. (When you play with wild cards, there's thepossibility of having five of a kind. This beats a straight flush.)

[1] Later on we'll think about seven-card variants of poker.

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Brian Harvey, bh@cs.berkeley.edu

Non-standard poker hands are hands which are not recognized by official poker rules but are made by house rules. Non-standard hands usually appear in games using wild cards or bugs. Other terms for nonstandard hands are special hands or freak hands. Because the hands are defined by house rules, the composition and ranking of these hands is subject to variation. Any player participating in a game with non-standard hands should be sure to determine the exact rules of the game before play begins.

Types[edit]

The usual hierarchy of poker hands from highest to lowest runs as follows (standard poker hands are in italics):

  • Royal Flush: SeeStraight Flush.
  • Skeet flush: The same cards as a skeet (see below) but all in the same suit.
  • Straight flush: The highest straight flush, A-K-Q-J-10 suited, is also called a royal flush. When wild cards are used, a wild card becomes whichever card is necessary to complete the straight flush, or the higher of the two cards that can complete an open-ended straight flush. For example, in the hand 10♠ 9♠ (Wild) 7♠ 6♠, it becomes the 8♠, and in the hand (Wild) Q♦ J♦ 10♦ 9♦, it plays as the K♦ (even though the 8♦ would also make a straight flush).
  • Four of a kind: Between two equal sets of four of a kind (possible in wild card and community card poker games or with multiple or extended decks), the kicker determines the winner.
  • Big bobtail: A four card straight flush (four cards of the same suit in consecutive order).
  • Flush: When wild cards are used, a wild card contained in a flush is considered to be of the highest rank not already present in the hand. For example, in the hand (Wild) 10♥ 8♥ 5♥ 4♥, the wild card plays as the A♥, but in the hand A♣ K♣ (Wild) 9♣ 6♣, it plays as the Q♣. (As noted above, if a wild card would complete a straight flush, it will play as the card that would make the highest possible hand.) A variation is the double-ace flush rule, in which a wild card in a flush always plays as an ace, even if one is already present (unless the wild card would complete a straight flush). In such a game, the hand A♠ (Wild) 9♠ 5♠ 2♠ would defeat A♦ K♦ Q♦ 10♦ 8♦ (the wild card playing as an imaginary second A♠), whereas by the standard rules it would lose (because even with the wild card playing as a K♠, the latter hand's Q♦ outranks the former's 9♠).
Poker Can A Straight Wrap Around
  • Straight Flush House: Same as Flush House (see below), but all cards are in consecutive order.
  • Big cat: See cats and dogs below.
  • Little cat: See cats and dogs below.
  • Big dog: See cats and dogs below.
  • Little dog: See cats and dogs below.
  • Straight: When wild cards are used, the wild card becomes whichever rank is necessary to complete the straight. If two different ranks would complete a straight, it becomes the higher. For example, in the hand J♦ 10♠ 9♣ (Wild) 7♠, the wild card plays as an 8 (of any suit; it doesn't matter). In the hand (Wild) 6♥ 5♦ 4♥ 3♦, it plays as a 7 (even though a 2 would also make a straight).
  • Wrap-around straight: Also called a round-the-corner straight, consecutive cards including an ace which counts as both the high and low card. (Example Q-K-A-2-3).
  • Skip straight: Also called alternate straight, Dutch straight, skipper, or kangaroo straight, Cards are in consecutive order, skipping every second rank (example 3-5-7-9-J).
  • Five and dime: 5-low, 10-high, with no pair (example 5-6-7-8-10).[1]
  • Skeet: Also called pelter or bracket, a hand with a deuce (2), a 5, and a 9, plus two other un-paired cards lower than 9 (example 2-4-5-6-9).[2]
  • Little bobtail: A three card straight flush (three cards of the same suit in consecutive order).
  • Flash: One card of each suit plus a joker.
  • Blaze: Also called blazer, all cards are jacks, queens, and/or kings.
  • Bobtail flush: Also called four flush, Four cards of the same suit.
  • Flush house: Three cards of one suit and two cards of another.
  • Bobtail straight: Also called four straight, four cards in consecutive order.

Poker Straight Wrap Around

Some poker games are played with a deck that has been stripped of certain cards, usually low-ranking ones. For example, the Australian game of Manila uses a 32-card deck in which all cards below the rank of 7 are removed, and Mexican Stud removes the 8s, 9s, and 10s. In both of these games, a flush ranks above a full house, because having fewer cards of each suit available makes full houses more common.

Cats and dogs[edit]

'Cats' (or 'tigers') and 'dogs' are types of no-pair hands defined by their highest and lowest cards. The remaining three cards are kickers. Dogs and cats rank above straights and below Straight Flush houses. Usually, when cats and dogs are played, they are the only unconventional hands allowed.

  • Little dog: Seven high, two low (for example, 7-6-4-3-2). It ranks just above a straight, and below a Straight Flush House or any other cat or dog. In standard poker seven high is the lowest hand possible.
  • Big dog: Ace high, nine low (for example, A-K-J-10-9). Ranks above a straight or little dog, and below a Straight Flush House or cat.
  • Little cat (or little tiger): Eight high, three low. Ranks above a straight or any dog, but below a Straight Flush House or big cat.
  • Big cat (or big tiger): King high, eight low. It ranks just below a Straight Flush House, and above a straight or any other cat or dog.

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Some play that dog or cat flushes beat a straight flush, under the reasoning that a plain dog or cat beats a plain straight. This makes the big cat flush the highest hand in the game.

Kilters[edit]

A Kilter, also called Kelter, is a generic term for a number of different non-standard hands. Depending on house rules, a Kilter may be a Skeet, a Little Cat, a Skip Straight, or some variation of one of these hands.

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See also[edit]

References[edit]

  1. ^1897-1985, Gibson, Walter B. (Walter Brown) (2013-10-23). Hoyle's modern encyclopedia of card games : rules of all the basic games and popular variations. ISBN978-0307486097. OCLC860901380.CS1 maint: numeric names: authors list (link)
  2. ^Stevens, Michael (November 3, 2018). '15 Poker Hand Names That Will Make You Smile (And Where Those Names Came From)'. gamblingsites.org. Retrieved February 19, 2019.
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