About Gin Rummy
Each player holds 10 cards, briefly increasing to 11 after drawing. You must then decide whether to discard, continue improving your hand or knock once your deadwood reaches 10 points or fewer. Getting to zero deadwood produces Gin, while arranging all 11 cards into melds produces the rare and especially valuable Big Gin.
Compared with slower, multiplayer Rummy variants, Gin Rummy rewards quick decisions and close attention to every draw and discard. In this version, you compete against a single AI opponent in a race to 100 points.
How to Play Gin Rummy
On each turn, draw one card from the stock or take the top discard, then discard one card. You cannot take the top discard and put that same card back on the same turn.
A meld is a set of three or four cards of the same rank, or a run of at least three consecutive cards in one suit. Aces are low only: Ace, 2, 3 is a run, but Queen, King, Ace is not.
Deadwood is the value of cards not included in melds. Aces count as 1, Jacks, Queens and Kings count as 10, and number cards count their printed value.
You may knock when your deadwood is 10 points or less. Your opponent can then add eligible deadwood cards to your melds to reduce their own total.
Go Gin by discarding so that all 10 remaining cards form melds. You score a 25-point bonus plus your opponent’s deadwood. Your opponent cannot lay off cards.
Big Gin means all 11 cards form melds before you discard. You end the hand without discarding and score a 31-point bonus plus your opponent’s deadwood.
If your opponent’s deadwood is equal to or lower than yours after an ordinary knock and any layoff, they undercut you. They score 25 bonus points plus the difference between the deadwood totals.
The final two stock cards are not drawn. If neither player ends the hand before then, it is a wash and neither player scores.
Gin Rummy Strategy and Tips
Do not knock automatically
Having 10 points of deadwood or less means you can knock, but it may be worth waiting. If your opponent finishes with equal or less deadwood after laying off, they undercut you.
Consider playing for Gin
Gin means all 10 cards left after your discard belong to melds. It earns a larger bonus than an ordinary knock and gives your opponent no chance to lay off. Big Gin uses all 11 cards in melds without a discard and earns a 31-point bonus.
Watch the discards your opponent takes
Picking up a visible discard may give you a clue about the sets or runs your opponent is building. Think carefully before discarding another card that could help the same combination.
Notice what your opponent throws away
Their discards may suggest ranks or suits they no longer need. Use those clues when choosing what to keep, but remember they do not reveal the opponent’s full hand.
Manage high-value deadwood
An unmatched high card can be worth keeping if it is close to forming a meld. If that meld does not develop, the card may make it harder to knock or increase the points you concede when the hand ends.
Gin Rummy FAQs
What is deadwood in Gin Rummy?
Deadwood is the total value of cards that are not part of a valid set or run. The game uses the best available arrangement of your hand to calculate it.
What is the difference between a knock, Gin and Big Gin?
You can knock with 10 points of deadwood or less. Gin means your 10 cards after discarding all belong to melds, leaving no deadwood. Big Gin means all 11 cards form melds before you discard, so you end the hand without discarding.
What is an undercut?
After an ordinary knock, your opponent may lay off cards onto your melds. If their remaining deadwood is equal to or lower than yours, they undercut you and receive the round’s score and undercut bonus. An undercut cannot happen after Gin or Big Gin.
How many players play Gin Rummy?
Gin Rummy is a two-player game. In this version, you play against one computer opponent.
What score do I need to win?
The first player to reach 100 points wins. Scores build across several hands.
When can I knock?
You can knock after drawing when your best hand arrangement leaves 10 points of deadwood or less. You do not have to knock immediately; you may keep playing to improve your hand.