The Bridge Experts
  • Home
  • Articles
  • The Bridge Fellowship
    • Learn from the Best
    • Bridge Can Be Easier
    • General Coaching + Simulations
    • Gift certificates
  • Give us a Hand!

Escaping from 1NTx - Part I, our notrump was doubled

12/3/2020

0 Comments

 

Author

Paulo Brum

This is a theme that is not well explored in the literature, or on the web. A recent discussion within our social media groups has prompted me to write down some principles that will help your partnership to deal with this rather common situation. 

The weight of vulnerability

Vulnerability is an important consideration in almost all competitive decisions, but this particular case is one in which its role is even more crucial. Some facts must be kept in mind by all players when they are deciding how to react after 1NT is doubled for penalties:

Scoring overtricks
Vulnerable overtricks are worth 200. Nonvulnerable, they are worth only 100. This means that the scale of rewards in your doubled 1NT contract can be either 180, 280, 380... (if nonvulnerable) or 180, 380, 580 (if vulnerable). 

Scoring undertricks
People are more familiar with the scale of rewards for defeating a doubled contract, but for completeness' sake, they can be either 100, 300, 500, 800, 1100... (nonvulnerable) or 200, 500, 800, 1100... (vulnerable). The two sequences are identical after 500 (identical if you keep in mind that a nonvulnerable player must go down one more trick to pay the same penalty as the vulnerable player).

When you want to escape from 1NT doubled, these numbers must be very clear in your mind. You have to judge which is the pathway that gives you the highest (or, the least worst) expected value. 

Some defenses against a penalty double "turn the cube" and force the partnership to play 1NT redoubled . These scales become even more important in that case, because 1NT redoubled is game.  The possible values are:

For making your contract:
560, 760, 960... (nonvulnerable)
760, 1160, 1560... (vulnerable)

For going down:
200, 600, 1000, 1600... (nonvulnerable)
​400, 1000, 1600... (vulnerable)

Should I stay or should I go?

Keeping the above numbers in mind, there are some systemic considerations to be discussed now. The decision of sticking it out or running is heavily influenced by your agreements. If you cannot describe your hand appropriately, the situation becomes more problematic. 

For example, suppose your partner's weak notrump opening is doubled and your escape methods are the very very simple "system on", meaning, 2 Clubs is Stayman, 2 of a red suit are transfers, 2 Spades are clubs, 2NT shows diamonds.  (Although I am not endorsing this method, it has the very clear advantage of simplicity and of often placing the contract in your partner's hand, which is usually desirable. Doubler has the majority of power and partner must have some honors to be protected from the lead). The only "extra" is the redouble, which you use to escape to 2 of a minor (partner bids 2 Clubs and you correct to diamonds if you have long diamonds).

This scheme is ok for all hands with 5-card suits. It has some trouble in the weak 4432 and 4441 hands without both majors. (With both majors you bid 2 Clubs immediately). Imagine that you have a weak hand and 4 hearts and 4 diamonds, 2 spades and 3 clubs (i.e. a 2=4=4=3 hand). You will have to stick it out in 1NTx, or guess a red suit. 

(By the way, especially if you are playing a weak notrump, guessing a red suit is not as bad as it seems. The opponents often have a game in this situation. And if you guess wrongly they sometimes don't have the right hand to double you there. That said, it is clearly better if you can ask partner's opinion about the reds).

The scheme of responses you chose basically forces you to (either guess or) stick it out in 1NTx with balanced hands. You have a minor escape hatch with 44 in the majors (you can stretch it with 43 there), but otherwise you will be committed to playing 1NTx with those hands. Not so bad with the right vulnerability, but worrisome if you are vulnerable. 

In any case there are some clear principles emerging: don't be afraid of playing 1NTx if you have a balanced hand (sometimes this is your safest harbor in the storm. Sometimes there is no safe harbor in the storm). Take it out if you have a 5-card suit and a weak hand (the expectation of 2.5 cards with partner, which is probably close to the mark, shows that this is a reasonable trump suit -- and the weaker you are, the more important it is to get away from notrump when you actually have a reasonable trump suit).

The next post will look at this situation from the other side: your partner doubled their 1NT opening. 
0 Comments

    Archives

    September 2021
    May 2021
    December 2020
    September 2020
    August 2020
    July 2020
    June 2020
    May 2020
    April 2020
    March 2020
    February 2020
    January 2020
    September 2019
    August 2019

    Categories

    All
    1st FSO
    2020 Brazilian Trials
    2/1
    Adriano Rodrigues
    Advanced
    Bidding Judgment
    Bidding Systems
    Bobby Levin
    Books
    China
    Contested Auction
    Declarer Play
    Defense
    Diego Brenner
    Double Dummy
    Emilio La Rovere
    Ernesto Muzzio
    Expert
    FSO
    Gabriel Chagas
    Giorgio-duboin
    Henrique Salomão
    Inferences
    Intermediate
    Ira Rubin
    Israel
    Jeovani Salomão
    João Paulo Campos
    Marcelo Branco
    Marcos Thoma
    Miguel Villas Boas
    Opening Lead
    Pablo Ravenna
    Paulo Brum
    Pietro Berlusconi
    Poland
    Pressure Bidding
    Raises
    Roberto Barbosa
    Roberto Mello
    Singapore
    Slam Bidding
    Stefano Tommasini
    Sweden
    Tournament Report
    Transfer Responses To 1C
    Trump Maneuvers
    USA
    Video
    World Youth Teams

    RSS Feed

Privacy Policy
Terms of Service
Site powered by Page One Agency
  • Home
  • Articles
  • The Bridge Fellowship
    • Learn from the Best
    • Bridge Can Be Easier
    • General Coaching + Simulations
    • Gift certificates
  • Give us a Hand!