One of Oswald Jacoby’s best gifts to bridge was the idea of using 2NT as a conventional forcing raise in response to a one-of-a-major opening bid. Using Jacoby 2NT works like this:

Opener            Responder
1 o  1        2NT

Responder’s 2NT bid shows a game-forcing hand with four-card (or longer) support in the major.

Why is it advantageous to use this method? Consider all of the major suit raises available in standard methods. This table provides an outline: [button link=»http://web2.acbl.org/documentLibrary/play/Commonly_Used_Conventions/jacoby2NT.pdf» size=»small» window=»yes»]Click Here[/button] to continue reading

By ACBL