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Garden Village Bridge Club
Jacoby 2NT
Jacoby 2NT
Jacoby 2NT

A Jacoby 2NT bid in response to partner’s one of a Major suit opening promises:

  1. 4+ card support for partner's major
  2. shows at least a raise to game in their Major suit.

The 2NT bid should be alerted and, if asked about described as “at lease a game forcing raise in my suit”.

There are various versions of responses to this artificial 2NT bid, probably the best (and most popular) is : -

After 1 - 2NT

3♣ = ♣ shortage (singleton or void)

3 = shortage (singleton or void)

3 = extra length 5+ cards and 12-14 hcp ish

3♠ = shortage (singleton or void)

3NT = Strong, Balanced hand 15+ hcp 4333 or 4432 or 5332, no shortage

4♣ = a good, 5 card ♣ suit

4 = a good 5 card suit

4 = minimum opening bid, 10-12 hcp no slam interest whatsoever

Similarly after 1 - 2NT

3♣ = ♣ shortage (singleton or void)

3 = shortage (singleton or void)

3 = shortage (singleton or void)

3 = extra length 5+ cards and 12-14 hcp ish

3NT = Strong, Balanced hand 15+ hcp 4333 or 4432 or 5332, no shortage

4♣ = a good 5 card ♣ suit

4 = 5 good card suit

4 = minimum opening bid, 10-12 hcp no slam interest whatsoever

  • All subsequent bids are game forcing, a suit bid being be a cue bid.
  • A shortage bid may be a singleton or void. A subsequent cue bid of the shortage suit would then show a void.
  • Bid a good 5 card 2nd suit (source of tricks) in preference to showing a singleton.  Note, a good suit contains 2 of the 3 top Honours. Eg AQ984 or KQT63

See also "Conventions" - "Roman Key Card Blackwood" for responses to Ace asking bids in sequence used above !