Two Spades is the Minor Suit Slam Try Convention, Using Jacoby Transfers, our response of Two Spades is not used as a natural bid, so we make use of it to indicate an interest in slam in a minor suit.

It's called the Minor Suit Stayman convention. (MSS on the Convention card)

Mechanics. Responder bids Two Spades (alerted) showing the HCP and distribution for slam if opener has a 4+ card minor suit fit.

With no such fit, opener bids three of a major if he has 5 of them or Two No Trump with a minimum opener or Three No Trump with a maximum.

N

E

 S
1NT

P

 2 ª* " If you have the right one North...."
3¨

P

 4NT "That's it ! Now let's do Blackwood"
5¨

P

 6¨ "Should be a laydown, North"
North South
ª Kxxx ª Q
© Qxx © AKx
¨ KQxx ¨ AJxxx
§ AK § xxxx

N

E

 S
1NT

P

 2 ª* "Lets try Slam in a minor, North"
3NT

P

 P "No minor, South." "O.K., make 3 NT"
North South
ª Kxx ª Qx
© Qxxx © AJx
¨ KQx ¨ AJxxx
§ AKx § Qxx

N

E

 S
1NT

P

 2 ª* "If you have the right minor, North . . . ."
2NT . . . "No 4+ minor; minimum hand, South"
. . .

P

 5§ "I think a Club game is our best shot, North"
P "You're the boss"
North South
ª AKxx ª Qxx
© Jxxx © Axx
¨ KQx ¨ -
§ Qx § AKJxxxx