"Is the cribbage computer game free to play?"

"Yes — completely free, no account, no download. Just open the page and click Play. There are no ads during the game itself."

"How strong is the AI opponent?"

"The computer plays solid intermediate-level cribbage. It evaluates all 15 possible keeps using expected-value analysis and makes sound pegging decisions — strong enough to challenge beginners and casual players, but beatable with good strategy."

"Does the game follow official cribbage rules?"

"Yes. The game implements full ACC-standard rules: fifteens, pairs, runs, flush, nobs, his heels, go, last card, and the 121-point win condition. You can peg out at any point — during play, hand counting, or crib counting."

"Can I play on my phone?"

"Yes. The game is fully responsive. Tap cards to select them — no app installation needed."

"What's the difference between this page and /play/online/?"

"Both use the same cribbage engine. The /play/online/ page is the clean everyday version. This page includes developer debug options."

"How do I get better at cribbage?"

"Play regularly, count every hand carefully, and study discard strategy. After each game, think about the hands where you made a suboptimal keep. Our Discard Advisor can analyse any 6-card hand and rank all 15 possible keeps by expected value."

Play Cribbage Against the Computer — Free AI Opponent | CribbageBox

You

0 /121

Computer

0 /121

Computer's Hand

Starter

Count: 0

Pegging

Crib

Your Hand

Loading game…

Game Over

Play Cribbage vs. Computer

Practice your cribbage skills against our AI opponent. The game runs entirely in your browser — no download, no account, no waiting.

How to Play

Discard phase — click two cards from your six-card hand to send to the crib
Pegging phase — click a card to play it; the running total and scoring are handled automatically
Hand counting — scores are calculated and pegged in order: pone, dealer’s hand, then crib
First player to 121 points wins

New to the game? The how to play cribbage guide covers everything from setup to scoring in a beginner-friendly walkthrough.

About the AI Opponent

The computer makes intelligent decisions at every stage of the hand:

Phase	What the AI Does
Discard	Evaluates all 15 possible keeps, estimates expected hand score across all 46 possible starters, adds crib adjustment for dealer/pone role
Pegging	Scores immediate opportunities (15, pair, run, 31) before falling back to safe plays
Crib awareness	Avoids gifting 5s, pairs, and connectors to your crib; favours them in its own

The AI plays fundamentally sound cribbage — strong enough to be a real challenge for beginners and casual players.

Quick Scoring Reference

The game scores everything automatically, but knowing why helps you make better discard decisions.

Combination	Points
Any group totalling 15	2
Pair (same rank)	2
Three of a kind	6
Four of a kind	12
Run of 3 consecutive	3
Run of 4 consecutive	4
Run of 5 consecutive	5
Flush — 4 cards same suit (hand only)	4
Flush — 5 cards same suit	5
Nobs (Jack matching starter’s suit)	1
His heels (Jack as starter card)	2 pts to dealer

See the complete cribbage scoring guide for worked examples of every combination, including double runs and complex fifteen counts.

Strategy Tips to Win More Often

Discarding

Keep your 5s — a 5 makes a fifteen with any of the 16 ten-value cards in the deck; it’s the most valuable card to hold
Never give a 5 to the computer’s crib — it’s the single most dangerous card to gift
As pone, send wide cards to the computer’s crib: A-K, 2-9, or other cards far apart in rank with no fifteen or run potential
Full breakdown: Cribbage Discard Strategy

Pegging

Don’t lead a 5 — the AI will play any ten-value card for 15-2 immediately
Lead a 4 — the safest opening card; the AI can’t reach 15 on its first play (max would be 14)
Save low cards for after a reset — they keep you alive in the pegging sequence longer
Deep dive: How Pegging Works and Opening Leads

Improving Faster

Use the Discard Advisor to analyse any hand before or after playing — it ranks all 15 possible keeps by expected value so you can see exactly which choice the AI would rate best. The Cribbage Score Calculator lets you practise counting hands until it becomes second nature.