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Conventions - Jacoby 2NT

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Jacoby 2NT is used after partner opens a major and you have at least 4 card support and 12+ pts.
It is used to separate weak distributional raises to game, from hands with slam interest -
Jump to game with a 7 loser, few points and no slam interest (fast arrival). e.g. 1H - 4H
Use Jacoby 2NT with a fit, opening points and slam potential. e.g. 1H - 2NT

Opener

Responder

Opener's rebid shows

Responder

1H

2NT

3H

Strong hand (17ish) and a good 5 card suit

Responder can sign off in game or
Cue bid with slam interest
or
use RKCB

*3C/3D/3S

Singleton or void in bid suit

3NT

4 card suit with No Trump shape (15-18)

4H

Minimum hand with no slam interest

*4C/4D/4S

Strong 5 card suit

*An alternative to the method shown, is to play jump bids to 4C/4D or 4S as splinter bids and use 3 level bids as showing strong side suits.

Jacoby 2NT is cancelled if opponents overcall or X, or if responder is a passed hand.

Oswald (Ozzie) Jacoby (1902 - 1984) - Ozzie Jacoby was one of the world's best players and writers for fifty years. In the '30s, Jacoby played on the famous Four Aces Team that won several national events. Ultimately he would win 30 national championships, his last at the age of 81.

As a bridge columnist, he penned 10,000 articles. Jacoby was also an ardent patriot, serving in the armed forces in WWI (at 15), WW2 and the Korean War.

 

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