CribbageStreet

The play: go, 31 and the last card

The players lay cards in turn and keep a running total. Players call it pegging.

4 min readChecked 12 Oct 2026Every count on this page is engine-checked
On this page 5 sections
  1. The count
  2. What scores in the play
  3. Go
  4. Pairs and runs in the play
  5. Questions

The count

The pone, the player who did not deal, lays the first card face up and says its value ACC r.7.1.b. Then the players take turns, each laying one card and saying the new total, the count ACC r.7.1.c. Kings, queens, jacks and tens count 10, an ace counts 1, every other card its number. The count can never pass 31. The starter is never played.

What scores in the play

When your cardYou score
brings the count to 152
brings the count to 312
matches the rank of the card before it, a pair2
makes three of a kind in a row6
makes four of a kind in a row12
completes a run with the cards right before it1 a card
is the last card before nobody can play1

One card can score more than once: a 5 on a 5 after a 5 brings the count to 15 and makes three of a kind ACC r.7.2.a.

  1. 5
  2. +210
  3. +815
  • 5count 10: pair 2+2
  • 5count 15: fifteen 2, three of a kind 6+8
Three fives. The last one makes 15 and three of a kind: 8 points on one card.

Go

When you hold no card that fits under 31, you say go. Saying go scores nothing. Your opponent must then keep laying cards while any fit ACC r.1.5.e(2). When neither of you can play, the player who laid the last card scores 1 for the go, and the count goes back to 0. The go and the last card share that one point: it is never two.

Reaching 31 scores 2 and ends the count at once, and the player who makes 31 never adds the point for the last card ACC r.1.7.

After a go or 31, the player who did not lay the last card leads the next count ACC r.7.1.b. If one player runs out of cards, the other plays on alone and scores as usual. The very last card of the play scores 1, unless it makes 31.

You must play when a card fits. In the app the table only lets you lay a card that fits, and says go for you when none does.

A worked example

Pagat’s example, played through our rules engine. A holds K K 2 2 and leads; B holds 9 8 7 6.

Pagat’s example, card by card
PlayerCardCountScore
AK10
B616
AK26
Bgo
A228
A230+2
Alast card+1
The count goes back to 0
B88
B715+2
B924+3
Blast card+1
A leads
  1. 10
  2. 16
  3. 26
  4. go
  5. 28
  6. +230
  • B says go: no card fits under 310
  • 2count 30: pair 2+2
  • A laid the last card+1
The first count. B cannot play on 26, so A plays on alone, pairs the twos and takes the last card.
B leads next: A laid the last card
  1. 8
  2. +215
  3. +324
  • 7count 15: fifteen 2+2
  • 9count 24: run of 3 for 3+3
  • B laid the last card+1
The second count. B leads because A laid the last card, and finishes with a fifteen, a run of three and the last card.

Pairs and runs in the play

A pair counts only with the card laid right before it, and three or four of a kind only when they come one after another. A run counts when the last cards laid hold ranks in a row, in any order, with nothing between ACC r.1.6. Each new card that stretches the run scores the whole run again:

  1. 4
  2. 6
  3. +39
  4. +414
  5. +520
  • 3count 9: run of 3 for 3+3
  • 5count 14: run of 4 for 4+4
  • 6count 20: run of 5 for 5+5
A run that grows. The 3, the 5 and the 6 each score the whole run.

A repeated rank breaks a run. Here the second 4 scores a run with the 2 and 3, and the last 3 scores nothing: the last three cards hold no run, and no pair.

  1. 4
  2. 6
  3. +39
  4. +313
  5. 16
  • 3count 9: run of 3 for 3+3
  • 4count 13: run of 3 for 3+3
A broken run. The second 3 repeats a rank.

A run can arrive late, all at once:

  1. 4
  2. 6
  3. 12
  4. 17
  5. +520
  • 3count 20: run of 5 for 5+5
A late run. The 3 makes five in a row.

Nothing carries over a go or 31: cards from the old count never pair or run with cards in the new one.

Questions

Does saying go score a point?
No. The player who laid the last card before nobody could play scores 1. Saying go scores nothing.
Do you score 31 and the last card together?
No. Reaching 31 scores 2 and never adds the point for the last card.
Who leads after a go or 31?
The player who did not lay the last card.
Do you have to play if you can?
Yes. You may say go only when no card you hold fits under 31.

Learn it by playing a hand.

The app’s first hand takes about 6 minutes, with a coach beside you, and the table counts every point.

Coming soon to Google Play and the App Store.