1NT opening natural

This defines 1NT as natural. This results in a natural auction without Stayman or transfers.

1NT opening NT style

This defines 1NT as NT style and allows the use of Stayman and transfers.

1NT opening range

Allows you to select the 1NT opening range (HCP):

• 1NT opening range 12-14;

• 1NT opening range 13-15;

• 1NT opening range 14-16;

• 1NT opening range 15-17.

1NT opening shape

Allows you to select the 1NT opening shape:

• 1NT opening shape 4441 - if the singleton is ace;

• 1NT opening shape 5422 - if 5m and no 4S, can avoid strong reverse hands;

• 1NT opening shape 5 major - allows 5M if shape = 5332:

  • • for 21GF, Acol and Sayc any suit strength 

    • for WJ suit strength no higher than 7

    • for PC 5M is not allowed

• 1NT opening shape 6 minor - allows 6m if shape = 6322 and suit strength no higher than 7.

1N-2S

• 1N-2S Minor Suit Stayman

• 1N-2S transfer to clubs

1N-2N

• 1N-2N transfer to clubs

• 1N-2N transfer to diamonds

1N-3C

• 1N-3C transfer to diamonds

• 1N-3C Puppet Stayman

1N-3D

• 1N-3D majors

• 1N-3D minors

• 1N-3D natural

• 1N-3D splinter

1N-3M Splinter

5431 after 1NT

3M bidding (after partner's 1NT style) shows a 5431 hand with singleton or void and exactly 3 cards in the OM and at least 54 in minors and 24+ HCP including partner.

Examples:

W      N      E      S      

        P      1N     P

3♥*1   P      3N     P

P      P

*1 5431 after 1NT

W      N      E      S      

        P      1N     P

3♠*1   P      3N     P

P      P

*1 5431 after 1NT

Default setting is off.

Garbage Stayman