How to play Gin Rummy: rules for beginners
Gin Rummy is a two-player card game of collecting matching cards and getting rid of the rest. It is quick to learn and rewards planning. This guide explains the rules, the vocabulary and the winning ideas.
The goal
Arrange your cards into melds and keep the value of your leftover cards, the deadwood, as low as possible. You end the round by knocking when your deadwood is low enough, and you score by having less deadwood than your opponent.
The deal
A standard 52-card deck is used. Each player gets 10 cards. One card is turned face up to start the discard pile and the rest form the draw pile.
Melds
- Set: three or four cards of the same rank, for example 7♠ 7♥ 7♣.
- Run: three or more cards of the same suit in order, for example 5♣ 6♣ 7♣. In gin rummy the ace is low only, so A-2-3 is a run but Q-K-A is not.
A card can belong to only one meld.
Card values for deadwood
| Cards | Value |
|---|---|
| Ace | 1 |
| 2 to 10 | Face value |
| Jack, queen, king | 10 |
Taking a turn
- Draw one card, either the top of the draw pile or the top discard.
- Discard one card face up. You always end your turn with 10 cards.
Pick up the discard when it completes or builds a meld. Taking a card you do not need tells your opponent what you are collecting.
Knocking, going gin and the end of the round
- Knock: if your deadwood totals 10 or less after drawing, you may discard and knock to end the round. You lay down your melds and show your deadwood.
- Gin: if all your cards fit into melds (deadwood of 0), you go gin. This scores a bonus.
- Lay off: after a knock, the defending player may add their unmatched cards to the knocker's melds to lower their own deadwood. This is not allowed when the knocker goes gin.
- Undercut: if the defender's deadwood is equal to or lower than the knocker's after laying off, the defender wins the round and usually earns a bonus.
Scoring
Scoring varies slightly between groups, but a common version is:
- A normal knock scores the difference between the two deadwood totals.
- Going gin scores the opponent's deadwood plus a bonus (commonly 25 points).
- An undercut scores the difference plus a bonus (commonly 25 points) for the defender.
- First to 100 points wins the game.
The Lumen Royale game uses a simplified flat-stake version, explained in its rules menu, so you can focus on the cards.
Strategy tips
- Get rid of high cards early. Kings, queens and jacks are 10 points each if you are caught holding them.
- Watch the discard pile. If your opponent takes a 6♣, they probably hold a run or set near it.
- Keep flexible pairs. A 6-7 of the same suit can become a run on two ends.
- Do not knock too early or too late. Knocking at 10 is risky because of undercuts. Waiting for a very low count lets your opponent catch up.
- Do not discard what your opponent needs. Avoid throwing a card that matches their picked-up cards.
A worked example round
You are dealt 3♠ 4♠ 5♠ 9♥ 9♣ 9♦ K♣ Q♥ 2♦ 7♣. You already have a run (3-4-5 of spades) and a set (three nines). Your deadwood is the king (10), queen (10), 2 and 7, a total of 29.
You draw the 6♠. The run becomes 3-4-5-6, and you discard the king. Deadwood is now 10 + 2 + 7 = 19. Next turn you draw the 7♠, which extends the run to 3-4-5-6-7, and you discard the queen. Your deadwood is now just the 2♦ and the 7♣, a total of 9. With 10 or less you may knock, or you can keep drawing in the hope of going gin.
Variations you may meet
- Straight gin: the version described here.
- Oklahoma gin: the first upcard sets the knock limit for the round.
- Hollywood gin: you play three games at once and score them on separate columns.
- Big gin: in some rules, you can win a bigger bonus by melding all 11 cards.
Common mistakes
- Holding on to high cards. A king in your hand is 10 points against you.
- Breaking a meld without a reason. Keep complete melds unless a better one is certain.
- Ignoring the opponent's discards. If they never pick up hearts, hearts are probably safe to discard.
- Knocking without checking for layoffs. If the other player can place cards on your melds, your knock may fail.
Frequently asked questions
Can an ace be both high and low? Not in gin rummy. The ace is always low.
Can I knock with exactly 10 deadwood? Yes, 10 or less is allowed.
What is the difference between gin and a knock? A knock leaves some deadwood. Gin has none and scores a bonus.
How many players can play? The standard game is for two. Variants for three or four players exist.
Practice for free
Play Gin Rummy against a bot on Lumen Royale with free chips. Nothing is at stake, so you can try knocking early, chasing gin and learning how undercuts feel.
Practice Gin Rummy for free
Play money only. No sign-up needed.