I've played literally hundreds of AI's... the strongest opponent cribbage games are all cheating.
The core Issues
Cribbage is focused upon 3 key priorities:
maximize points in hand
maximize points in play
minimize risk of giving points in the crib.
These boil down to two key skills:
Playing is governed by a fairly easily coded set of ...
The official cribbage rules make this incredibly clear:
Rule 1.6 - Definitions
go: Called by a player who cannot play a card without exceeding the cumulative count of 31; the opponent scores one point, or two if reaching exactly 31.
In this, calling a 31 is just a special case of a go.
The only hand that will score a 29 consists of all four 5s and the Jack of nobs.
The scoring of this hand is nicely broken down in this Cribbage Corner post:
We score the 29 hand in the same way as any other: taking 15s first, then pairs, runs, flushes and nobs.
First count 15s. The Jack makes 15 with each of the 5s, that's 4 15s. Also, there are 4 ways of ...
According to the rules of cribbage:
Card combinations cannot span a reset; once the total reaches 31 (or a Go has been scored) and counting has re-started at zero, cards already played cannot contribute to runs or pairs.
First of all, there's only one fifteen: the seven and the eight. That's two points. (Note that the sixes can't participate in 15s at all)
Next, there are three runs of three: each six in turn, the seven, and the eight. That's 3*3 = nine points.
Finally, there's the trio of sixes, worth six points (or equivalently, three pairs of sixes).
So the final ...
Assuming you're talking about the "Pegging" phase of each hand of cribbage, and assuming that the cards you types in order were played in that order, here is the order of events.
Pegging Phase Answer
You lead with a 2. Currently, the count is at 2 and no point are scored.
Your son plays a 5. The count moves to 7 (2+5=7). No points are scored.
You play a ...
It is exactly as Wikipedia states, the second peg is used to keep track of the previous score in order to prevent mistakes in scoring. Don't forget that since the score is calculated frequently and there are no marks on the cribbage board indicating place it can be very easy to lose track of where you where starting from.
Visually, cribbage is known ...
Seven. Scoring during pegging is performed after each card is played, based on the list of cards thus far. After playing the "2" you score three; after playing the ace you score an additional four. (Consider: if it were the other player that scored for the run of three, you wouldn't take those points away from them when you scored the ace!)
Yes. Each card that makes a run during play scores the run.
Similarly, if anyone lays a card such that with the three or more preceding cards, a run can be constructed, the number of cards which would make up that run are scored. e.g. suppose cards were laid in the following order: 8,6,4,5,7. ...
You have three A's, let's call them AC, AS, AH (no diamond), and two 7's, let's say 7C and 7S.
First, you have 6 points in 15s: 7C/7S/AC, 7C/7S/AS and 7C/7S/AH.
You have no runs or double runs.
Next, you have 6 points in Ace pairs: AC/AS, AC/AH, and AC/AH (also known as a Pair Royal).
Next, you have 2 points in Seven pairs: 7C/7S.
You have no flushes.
I wrote the AI engine for BTO Cribbage, a mobile Cribbage app. I played Cribbage growing up and decided to write my own app after playing the other apps. I have played 10+ other apps and most of them stink and/or cheat, like described by @aramis's answer. Being on both sides (a loyal player and an APP creator), I have a different perspective and found the ...
Player 1 plays a 5 - Total = 5 - No Points
Player 2 plays a 5 - Total= 10 - Two Points to player 2 for a pair
Player 3 plays a 5 - Total = 15 - Player 3 get 8 points (2 for the 15 total, and six for the triple)
Player 4 plays a 5 - Total = 20 - Player 4 get 12 points for the four of a kind.
Nice if you can get it :)
The American Cribbage Congress - Rule 7. The Play clearly states.
Rule 7.2 Scoring
When a player's opponent has no more cards or calls "go," the other player may play all playable cards in succession and announce the points scored before pegging the total at one time.
So yes, after your opponent runs out of cards you shall play ...
From the American Cribbage Congress Rules of Cribbage:
straight (or run), single: Sequence of three or more consecutive cards in any order during the play of the cards; for example, 3-5-6-7-4 (counts three when the 7 is played and counts five when the 4 is played)
When the second 4 is played by Player 1 the last 4 cards played are:
3, 5, 6, 4
This set ...
During play you don't count 15s for card combinations, only for the total count. So the third person got two points for making the total count 15, but the dealer only gets the 12 points for the four of a kind. In the same way, if the lead was a three, followed by a king, followed by a 5, the person playing the 5 would not score any points for the play.
No. The two sixes would not be counted as a pair. The pair needs to be with the last two cards played.
Pair: For adding a card of the same rank as the card just played Peg 2
According to this site Yes it is a run.
Example: Cards are played in this order: 9, 6, 8, 7. The dealer pegs 2 for fifteen when he plays the six and pegs 4 for run when he plays the seven (the 6, 7, 8, 9 sequence). The cards were not played in sequential order, but they form a true run with no foreign card.
I have seen written rules by Hoyle where they are ...
You get one point because he called "Go", not because you played the last card(s).
If a player cannot add another card without exceeding 31, he or she
says "Go" and the opponent pegs 1. After gaining the Go, the opponent
must first lay down any additional cards he can without exceeding 31.
So I'v been googling like crazy last hour or so, and here is what I found. A person on BGG recommended pagat.com for comprehensive coverage of old public domain card games. Indeed there is an article there covering cribbage.
I'll cite the relevant part:
Players now retrieve the cards that they put down during the play and score for ...
If I read you correctly, you're describing a hand like 4H 4D 4S 7D.
4H 4D 7D - 15 2
4H 4S 7D - 15 4
4D 4S 7D - 15 6
4H 4D - pair (2 points)
4H 4S - pair (2 points)
4D 4S - pair (2 points)
You are indeed correct that this adds to 12 points. You are also correct that you can shortcut the pairs to 6 points as Pair Royal.
SillyPutty’s answer is good, but has errors once reaching the play of the father’s 4.
Here is how the play unfolds:
Father plays 2, says “2”
Son plays 5, says “7”
Father plays 3, says “10”
Son plays 2, says “12”
Father plays 4, says “16, 4 for the run (2, 3, 4, 5)”
Son plays 3, says “19, 3 for the run (2, 3, 4)”
Father plays 5, says “24, 4 for the ...
According to the ACC's tournament rule 7.3, on reneging:
Any cards played after the renege occurs or the pegging of a "go" shall be retrieved by both players, and any points pegged (or scored) are retracted. The non-offending player receives two points for each card that singly could have been played (judges confirm number of cards). The nonoffending ...
No - cards from one round of play cannot be combined with cards from the next.
The player who called Go leads for the next series of plays, with the
count starting at zero. The lead may not be combined with any cards
previously played to form a scoring combination; the Go has
Three fives create a single fifteen.
Four fives create four fifteens: you have four choices of which card not to use.
Five fives create ten fifteens: you have five choices of the first card and four choices of the second card, but half of those are equivalent to the other half, so there are ten pairs of cards to not use.
Neither, as it scores 20 points in the Show. The Rules of Cribbage specify that one scores "pairs" and "fifteens" as combinations.
Each player then counts the score of the four cards in his hand plus the turned up card. The non-dealer shows first and this is important because it can often make the difference between winning and ...