Home | Learn | Slam Bidding

Slam Bidding in Bridge

A slam in bridge is bidding and making 12 tricks and a grand slam is bidding and making all 13 tricks. To bid a slam you need to calculate your partnerships' combined strength, just like you do when you're thinking of bidding a game.

Having 33 points between the two hands doesn't guarantee you'll make a slam but you'll make much more often than not. Some hands with fewer than 33 points will still make slam but you'll probably need something to make up for your lack of points - perhaps a long suit or a great trump fit with a shortage in a side suit.

You might also need a suit to break nicely or perhaps even a finesse to work. If you can get used to the idea that very few slams you bid will be 100% guaranteed and, instead, aim to bid slams that have a better than 50% chance of making you'll be better off in the long run than the overly cautious players. And you'll have more fun than they will.

easy slam bidding

1♠ is a change of suit so it's forcing. That means North can't pass and is expected to describe his hand further which he does, in this case, with 2NT. That 2NT bid is a limit bid showing 18-19 points and a balanced hand. South has 15 high card points with good shape together with North's 18-19 making 33-34 between the two hands. North must have at least 2 spades for the 2NT bid so South can be sure of an 8 card trump fit. 33 points and 8 trumps.

Related Lessons

Quantitative 4NT - The quantitative 4NT bid in bridge is used when you have a strong balanced hand and you're not sure if your combined strength is enough for 6NT.
Blackwood 4NT Asking for Aces - Blackwood, 4NT asking for aces, is a convention useful for slam bidding when you're likely to end up in a suit contract.
Gerber 4C Asking for Aces - Gerber, 4♣ asking for aces, is a convention useful for slam bidding when partner's last bid was 1NT or 2NT.

Watch, Learn, Play

Sunday Livestreams

Watch 10 hands being played, ask questions during the livestream and then enjoy playing the hands yourself.

Learn Bridge Online

Join Graeme every Wednesday for lessons at learnbridgeonline.com

Play Bridge Online

Play bridge and become a better player with livestreams, videos and lessons.


Thank you Graeme, excellent lesson on slam bidding. Enjoying your format with good everyday bidding, declarer/ defender tips & also your advanced lessons.Regards Alison
Socks says:
Fantastic lesson, this certainly spells it all out. Thank you
Hi. I played the first slam, however the 2nd set up for E-W, not N-S. I tried to change it but wouldn't work. Can you help please. Heather
Pasanaa says:
A pity that you don't use RKCB. In the fourth hand the hints are to stop at 5H and it can easily make 7 if you find out the N had the KH
Pasanaa says:
Are these hands set up as ACOL?
Gits says:
Lots of homework , but good fun! Gracias!
OldDog says:
The lesson encourages an Old Dog (83) to venture up the Bridge mountain into the rarefied atmosphere of Slam bidding. Thanks
kinghorn says:
Tu for info enjoying all comments
Log in to comment