500

Suit Slams

What works best is when there is a good trump fit and each player has a different short suit. Unbalanced hands take more tricks at a trump contract than balanced hands.

Bidding a slam in a trump suit contract

You should hold a strong combined trump suit: If you have any doubts about bidding a slam its better to play the hand in game.
  • 32 or more revalued (including short suit distribution)points between the two hands
  • An eight-card trump suit fit or longer
  • At least three of the four aces between you and partner
  • No two immediate losers in any one suit

Bidding a slam in a Notrump contract - 6NT

  • 33 or more high-card points between the two hands
  • Generally balanced or semi-balanced hands; do not add short-suit distribution points
  • An eight-card trump suit fit or longer
  • At least three of the four aces between you and partner
  • No two immediate losers in any one suit
  • Enough top tricks or a strong long suit to provide 12 tricks; points alone do not guarantee a slam
  • Avoid 6NT if an important suit is inadequately stopped, even when the combined point count reaches 33
  • 6NT ≈ 33 HCP + controls + 12 likely tricks.

Bidding a grand slam in a Notrump contract - 7NT

  • 37 or more high-card points between the two hands
  • All four aces
  • No immediate loser in any suit
  • At least three of the four aces between you and partner
  • No two immediate losers in any one suit
  • You should be able to identify 13 probable tricks, rather than bidding merely because the point count is high
  • Avoid 6NT if an important suit is inadequately stopped, even when the combined point count reaches 33
  • 6NT ≈ 33 HCP + controls + 12 likely tricks.
Trump-suit slam NoTrump slam
Small slam strength 32+ revalued points 33+ HCP
Distribution Shortness can add value Usually don't count shortness
Fit 8+ card trump fit No trump fit required
Aces At least 3 At least 3
Quick losers No two in one suit No two in one suit
Other key factor Trump quality Stoppers and source of tricks
Grand slam ~37+ and all controls ~37+ HCP and all 4 aces


The two hands below have the combined cards and values that can make a small slam in a suit contract

North

West

East

South

First Round and Second Round controls

A first-round control is a holding which prevents the opponents from taking the first round of the suit. For example aces and voids are first round controls.. A second-round control is a holding which prevents the opponents from taking the second round of the suit. For example Kings and singletons are second round controls.

Bidding a Grand Slam in a Trump Suit

You should hold a strong combined trump suit: If you have any doubts about bidding a Grand Slam its better to play the hand in a Small Slam.
  • 37 + points between the two hands for a Grand Slam (7 level)
  • 32 + points between the two hands for a Mini Slam (6 level)
  • An eight-card trump suit fit or longer
  • At least three of the four aces between you and partner
  • Controls in all Suits
Members only Practise conventions free 30 days free — no card required

Try it yourself

Members only Practise conventions free 30 days free — no card required


Partner Opens 2C (Game Forcing hand of unknown shape and 23+ points)

With this hand what is your response to this opening bid?

  • ♠ K 8 4 3
  • ♥ Q J 9 6 5
  • ♦ Q T 8 3
  • ♣ -

Bid 2H showing 8+ HCP and a 5 card heart suit. You can't count the distribution points for the club void just yet, because you aren't certain whether the contract will be in a suit or in Notrump.