How to Play Gin Rummy
The classic two-hand duel — ten cards, one draw at a time, and the nerve to knock first.
Play Gin Rummy freeGin Rummy is the great American two-player card game — born in 1909, perfected in the card rooms and Hollywood lounges of the 1930s, and still the sharpest head-to-head duel in the deck. There are no tricks and no trumps: just you, your opponent, and ten cards each — racing to weave a hand of melds while the useless cards quietly count against you.
What you need
- 2 players, a standard 52-card deck, 10 cards each.
- Ace is low: A-2-3 is a run; Q-K-A is not.
- Card values: Ace 1, pips at face value, J/Q/K 10.
- The 21st card starts the discard pile face up; the rest is the face-down stock.
Melds & deadwood
- Set — three or four cards of the same rank (7♦ 7♥ 7♠).
- Run — three or more cards of one suit in sequence (4♣ 5♣ 6♣).
- A card can live in only one meld — never in a set and a run at once.
- Deadwood is everything left over, valued by the table above. Your whole game is shrinking that number while guessing your opponent's.
The turn
- Draw one card — from the unseen stock, or the face-up discard (a public commitment your opponent reads).
- Discard one — your hand returns to ten. A card taken from the discard pile can't be discarded the same turn.
- First turn courtesy: the non-dealer may take the up-card; declined, the dealer may; both declining, the non-dealer draws from stock.
- If the stock runs down to two cards with no knock, the hand is a wash — no score, redeal.
Knocking, gin & the undercut
Knock when your deadwood is 10 or less: discard face down and show your melds. Your opponent may lay off their deadwood onto your melds (a fourth card to your set, either end of your run) — then the counts are compared.
| Result | Score |
|---|---|
| Knock — your deadwood is lower | the difference |
| Undercut — opponent equals or beats your count | opponent scores the difference +25 |
| Gin — knock with zero deadwood | +25 plus their full deadwood; no layoffs allowed |
| Big gin — all 11 cards meld before discarding | +31 plus their deadwood |
| Each hand won | banks a +25 box bonus, added at game end |
Winning the game
Hands accumulate until a player reaches 100 points — then the boxes (25 per hand won) are added and the totals settle the game. Knocking early wins small and often; holding for gin wins big and seldom. Choosing between them is the entire soul of the game.
Strategy — first principles
- Watch every discard. The pile is the only honest thing your opponent shows you — what they throw is what they don't need; what they take is a map of their hand.
- Knock early against big hands. The longer a hand runs, the more the gin-chaser profits. Ten quick points beat a beautiful loss.
- Keep pairs and neighbours early — cards that can grow into melds two ways are worth more than their face value.
- Count the undercut. Before knocking at 8 or 9, ask what your opponent could lay off — a knock into an undercut is Gin's most famous self-inflicted wound.
- Dump high deadwood early — a stray king costs ten the whole hand.
Frequently asked questions
Can the Ace be high in a run?
No — Ace is strictly low here. A-2-3 melds; Q-K-A does not.
Do I have to knock at 10?
Never — knocking is always optional. Many strong players hold a knockable hand and chase gin instead. That choice is the game.
What is an undercut?
You knock, but after layoffs your opponent's deadwood is equal or lower — they score the difference plus a 25 bonus. The counter-punch that keeps knockers honest.
Can I lay off against gin?
No — gin allows no layoffs. That's much of why it's worth chasing.
What is big gin?
All eleven cards meld right after your draw — no discard needed. It scores a 31 bonus plus the opponent's full deadwood.
What happens if nobody knocks?
When only two stock cards remain, the hand is void — no score, and the next deal begins.
Can a card count in two melds?
No. The 7♥ in your run of hearts cannot also complete your set of sevens — the engine always finds the split that minimises your deadwood.
Where does the name come from?
From gin the drink — the game emerged from "rum" games during America's cocktail age, and the name stuck.
What is deadwood?
The cards left in your hand that are not part of any meld, counted at face value with face cards worth 10 and the Ace worth 1. Your deadwood total is what you score against — get it to 10 or less and you may knock.
How do you score Gin Rummy?
The knocker scores the difference between the two deadwood counts. Going gin adds a 25-point bonus, and an undercut pays the defender 25 plus the difference. Worked examples in Gin Rummy scoring.
Is Gin Rummy two players only?
The classic game is strictly for two. Three can play with one dealing out each hand, and four normally play as two separate pairs rather than as partners.
Glossary
- Boxes
- The 25-point per-hand bonuses added at game end.
- Deadwood
- Unmelded cards — their values count against you.
- Gin
- Knocking with zero deadwood: +25, layoff-proof.
- Knock
- Ending the hand with deadwood of 10 or less.
- Layoff
- Extending the knocker's melds with your own deadwood.
- Undercut
- Beating or matching the knocker's count: the difference +25.
- Wash
- Stock down to two cards, nobody knocked — void hand.
Keep reading
- Gin Rummy Strategy
- Gin Rummy Variants
- Gin Rummy Scoring — deadwood, gin, undercuts and boxes.