What is Big Gin?

Big Gin is gin rummy's rarest and most satisfying finish: you draw an eleventh card that fits perfectly, so you go out without even discarding.

Quick answer: Big Gin happens when the card you draw completes your hand so that all eleven cards - your ten plus the one you just drew - form melds with zero deadwood, and you don't discard. It's rarer than ordinary gin and pays a bigger bonus, typically 31 points (some rules use 25), plus your opponent's deadwood.

How Big Gin works

Normally you draw, then discard back down to ten. But if the card you draw slots into your melds so that all eleven cards are matched with zero deadwood, you can declare Big Gin and keep it - no discard. It's an extended gin, one card larger.

The bigger bonus

Because it's harder to reach, Big Gin pays more than ordinary gin. The common bonus is 31 points (some house rules use 25), added to your opponent's full deadwood total. Like a normal gin, it also blocks any lay-offs against you.

How often it happens

Big Gin is uncommon - you need the deal and the draws to line up so the eleventh card is the one missing piece. You can't plan for it directly; it usually appears when you were already close to gin and the stock cooperates. It's a lucky flourish on top of skilled play. Compare it to standard gin.

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Related questions

What is going gin?

Going gin means arranging all ten of your cards into melds so you have zero deadwood. It's the best way to end a hand: you score a 25-point bonus plus your opponent's entire deadwood total, and because you have no unmatched cards, they can't lay off anything onto your melds.

How is gin rummy scored?

When a hand ends, the knocker scores the difference between the two players' deadwood totals. Going gin adds a 25-point bonus (and the opponent can't lay off). If the defender ties or beats the knocker, that's an undercut, worth the difference plus a 25-point bonus. Match bonuses reward winning the game and each hand.

How many cards are used in gin rummy?

Gin rummy uses a single standard 52-card deck, with no jokers. Each of the two players is dealt ten cards. The 21st card is turned face up to start the discard pile, and the remaining 31 cards form the stock you draw from.