BBO Discussion Forums: 2NT - BBO Discussion Forums

Jump to content

  • 2 Pages +
  • 1
  • 2
  • You cannot start a new topic
  • You cannot reply to this topic

2NT 4th suit GF

#1 User is offline   kgr 

  • PipPipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 3,464
  • Joined: 2003-April-11

Posted 2009-March-19, 04:10

Scoring: IMP

1-1
1-2NT
All Pass
 
Should North have bid 2 (4th suit GF) iso 2NT or should South have bid 3 iso Pass. ...Or is this unlucky (not able to find the fit without forcing to high if there would be no fit).
Bridge Single Dummy Program: https://github.com/k...eDummy/releases
0

#2 User is offline   Hanoi5 

  • PipPipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 4,083
  • Joined: 2006-August-31
  • Gender:Male
  • Location:Santiago, Chile
  • Interests:Bridge, Video Games, Languages, Travelling.

Posted 2009-March-19, 04:15

I agree with 2NT but I'd prefer 3 by South instead of Pass. If North is awake s/he'll bid 4.

View Postwyman, on 2012-May-04, 09:48, said:

Also, he rates to not have a heart void when he leads the 3.


View Postrbforster, on 2012-May-20, 21:04, said:

Besides playing for fun, most people also like to play bridge to win


My YouTube Channel
0

#3 User is offline   whereagles 

  • PipPipPipPipPipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 14,900
  • Joined: 2004-May-11
  • Gender:Male
  • Location:Portugal
  • Interests:Everything!

Posted 2009-March-19, 05:09

A commercial for 4th suit not being GAME forcing.

If it is, I guess I'll have to agree 2NT and now bid 3.
0

#4 User is offline   hatchett 

  • PipPipPipPipPip
  • Group: Full Members
  • Posts: 589
  • Joined: 2005-November-02
  • Location:Moldova

Posted 2009-March-19, 05:43

Quote

A commercial for 4th suit not being GAME forcing.


Actually it's a commercial for raising 1 to 2 with 3 card support.
0

#5 User is offline   mcphee 

  • PipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 1,514
  • Joined: 2003-February-16

Posted 2009-March-19, 06:42

This sort of bidding problem is for partnership chat. Some consider that had the N hand bid 1NT after 1S that the opening hand now bidding 2H shows some extra values, others are bidding out the shape of the hand. Both methods hold problems.

Naturally the issue for the opening hand is does partner have 4 or 5 H. My feelings are, who cares, I am not passing 2N with this. 3H just makes sense, that is why we have a partner who then has an easy 4H call.
0

#6 User is offline   kgr 

  • PipPipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 3,464
  • Joined: 2003-April-11

Posted 2009-March-19, 07:03

Additionel question:
If South bids 3 is this forcing (give partner choice between 3NT and 4)?
Maybe it shouldn't be forcing because South can go via 3C 4SF if he wants to force to game.
Bridge Single Dummy Program: https://github.com/k...eDummy/releases
0

#7 User is offline   ArtK78 

  • PipPipPipPipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 7,786
  • Joined: 2004-September-05
  • Gender:Male
  • Location:Galloway NJ USA
  • Interests:Bridge, Poker, participatory and spectator sports.
    Occupation - Tax Attorney in Atlantic City, NJ.

Posted 2009-March-19, 07:11

South should either bid 2 over 1 or 3 over 2NT.

The one thing that South should not do is pass 2NT. If South does not intend to raise hearts later in the auction South should not bid 1 over 1. After bidding 1, the only bids South should pass are 3NT and 4.

That is not to say that it is wrong to bid 1. In fact, I believe it is the right call. But one cannot pass 2NT.
0

#8 User is offline   Apollo81 

  • PipPipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 3,162
  • Joined: 2006-July-10
  • Gender:Male
  • Location:Maryland

Posted 2009-March-19, 08:26

If you're playing 4th suit GF, then opener has to be prepared to bid 3 over 2NT on hands like this.
0

#9 User is offline   MickyB 

  • PipPipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 3,290
  • Joined: 2004-May-03
  • Gender:Male
  • Location:London, England

Posted 2009-March-19, 08:32

Supporting with support will solve all of your problems. By rebidding 1S South has endplayed himself, he now has to either pass 2NT when 4H may be cold or force to game with 3H when you may have a misfitting combined 22-count.
0

#10 User is offline   gnasher 

  • Andy Bowles
  • PipPipPipPipPipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 11,993
  • Joined: 2007-May-03
  • Gender:Male
  • Location:London, UK

Posted 2009-March-19, 09:12

MickyB, on Mar 19 2009, 03:32 PM, said:

Supporting with support will solve all of your problems. By rebidding 1S South has endplayed himself, he now has to either pass 2NT when 4H may be cold or force to game with 3H when you may have a misfitting combined 22-count.

Me too.
... that would still not be conclusive proof, before someone wants to explain that to me as well as if I was a 5 year-old. - gwnn
0

#11 User is offline   jdonn 

  • - - T98765432 AQT8
  • PipPipPipPipPipPipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 15,085
  • Joined: 2005-June-23
  • Gender:Male
  • Location:Las Vegas, NV

Posted 2009-March-19, 09:14

I think it's an advertisement for 4th suit not gf, not for raising on three card support. If you raise hearts and partner invites you have a similar choice to what you face here. Overbid in search of a better strain that may or may not be there, or miss it.
Please let me know about any questions or interest or bug reports about GIB.
0

#12 User is offline   hanp 

  • PipPipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 2,987
  • Joined: 2009-February-15

Posted 2009-March-19, 09:19

Good hand for XYZ as well.
and the result can be plotted on a graph.
0

#13 User is offline   gnasher 

  • Andy Bowles
  • PipPipPipPipPipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 11,993
  • Joined: 2007-May-03
  • Gender:Male
  • Location:London, UK

Posted 2009-March-19, 09:21

After
  1-1
  2
playing the style where 2 might be 43xx, responder will bid 2 with 4-4 in the majors and invitational values (or more). Thus
  1-1
  2-2NT
denies four spades, and the only problem is which partscore to play in.

The only problem with this style is that when responder is weak with 4-4 in the majors you play in the wrong one.

This post has been edited by gnasher: 2009-March-19, 09:22

... that would still not be conclusive proof, before someone wants to explain that to me as well as if I was a 5 year-old. - gwnn
0

#14 User is offline   Codo 

  • PipPipPipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 6,373
  • Joined: 2003-March-15
  • Location:Hamburg, Germany
  • Interests:games and sports, esp. bridge,chess and (beach-)volleyball

Posted 2009-March-19, 09:23

To raise partner with a 3 card suit is not the holy grail. It had helped here where you have 5 hearts.

Your style brought you to a partial which makes. So the problem was not the wrong partial, it was that you had not been in game.

So where did you missed it?

I think with the given methods, both bid reasonable. North could have been a little more enterprising with 11 HCPS (including two aces) and a good 5 card suit, but 2 NT was fine.

South could have bid 3 HEart, but when you had a 2425 hand instead of a 2524, he may had looked silly.

So it is again a matter of methods.
I think the easiest way out is to bid 4sf as inivitational+ Here, you could have find out the exact shape from opener and played 4 Heart with confidence.

But on BBF a direct raise with 3 cards is more en vogue. If you want to adopt that style, you need to sort out whether you have a 4/3 or 4/4 fit, or a 4/4 fit in the other major and enough strength for game or not.


Change your hand to QTxx,Jxxx,Ax,Axx and try to find all this out. I couldn't.
Kind Regards

Roland


Sanity Check: Failure (Fluffy)
More system is not the answer...
0

#15 User is offline   jdonn 

  • - - T98765432 AQT8
  • PipPipPipPipPipPipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 15,085
  • Joined: 2005-June-23
  • Gender:Male
  • Location:Las Vegas, NV

Posted 2009-March-19, 09:54

gnasher, on Mar 19 2009, 10:21 AM, said:

After
  1-1
  2
playing the style where 2 might be 43xx, responder will bid 2 with 4-4 in the majors and invitational values (or more).  Thus
  1-1
  2-2NT
denies four spades, and the only problem is which partscore to play in.

The only problem with this style is that when responder is weak with 4-4 in the majors you play in the wrong one.

The only other (far larger) problem is it's much more valuable to use the cheapest bid as an ask about opener's hand.

But I take it back, because it's also a problem to force responder to bid a natural 2 on any four card spade holding he might want to play in, since some of those can be fairly bad and hurt opener's evaluation.

Sounds like at least three problems to me.
Please let me know about any questions or interest or bug reports about GIB.
0

#16 User is offline   keylime 

  • PipPipPipPipPipPipPip
  • Group: FD TEAM
  • Posts: 2,735
  • Joined: 2003-February-13
  • Gender:Male
  • Location:Nashville, TN
  • Interests:Motorsports, cricket, disc golf, and of course - bridge. :-)

  Posted 2009-March-19, 10:37

Without 4th suit forcing, I still bid 2. If pard finds a 2 rebid, I might swish it here due to lack of fit.
"Champions aren't made in gyms, champions are made from something they have deep inside them - a desire, a dream, a vision. They have to have last-minute stamina, they have to be a little faster, they have to have the skill and the will. But the will must be stronger than the skill. " - M. Ali
0

#17 User is offline   whereagles 

  • PipPipPipPipPipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 14,900
  • Joined: 2004-May-11
  • Gender:Male
  • Location:Portugal
  • Interests:Everything!

Posted 2009-March-19, 11:06

kgr, on Mar 19 2009, 01:03 PM, said:

If South bids 3 is this forcing (give partner choice between 3NT and 4)?

Of course it's forcing. Or... it's supposed to be.

With a bare min, you pass.
0

#18 User is offline   gnasher 

  • Andy Bowles
  • PipPipPipPipPipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 11,993
  • Joined: 2007-May-03
  • Gender:Male
  • Location:London, UK

Posted 2009-March-19, 12:20

jdonn, on Mar 19 2009, 04:54 PM, said:

The only other (far larger) problem is it's much more valuable to use the cheapest bid as an ask about opener's hand.

Playing 2 as a relay, I use 1-1;2-2NT as exactly 4-4 in the majors and exactly invitational. Game-forcing 4-4s can start with 2S. You lose whatever else you would use 2NT for, of course.

Quote

But I take it back, because it's also a problem to force responder to bid a natural 2 on any four card spade holding he might want to play in, since some of those can be fairly bad and hurt opener's evaluation.

Equally, requiring opener to bid 1-1;1 on any four-card spade holding might adversely affect responder's ability to evaluate his hand.
... that would still not be conclusive proof, before someone wants to explain that to me as well as if I was a 5 year-old. - gwnn
0

#19 User is offline   Echognome 

  • Deipnosophist
  • PipPipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 4,386
  • Joined: 2005-March-22

Posted 2009-March-19, 13:20

I have discussed the 4=3=(15) hand only with Phil. We agreed that when you have a minimum opening, you raise partner's hearts. If you have about a K extra than minimum, you bid 1, intending to bid hearts at your next turn. I believe this is useful in clarifying these hands.

As Andy, we play the cheapest bid as the ask and have 2NT show 4's.
"Half the people you know are below average." - Steven Wright
0

#20 User is offline   skjaeran 

  • PipPipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 3,727
  • Joined: 2006-June-05
  • Location:Oslo, Norway
  • Interests:Bridge, sports, Sci-fi, fantasy

Posted 2009-March-19, 13:49

kgr, on Mar 19 2009, 02:03 PM, said:

Additionel question:
If South bids 3 is this forcing (give partner choice between 3NT and 4)?
Maybe it shouldn't be forcing because South can go via 3C 4SF if he wants to force to game.

3 is forcing. You don't try to play in a possible 4-3 fit now. If you can't accept the invite you either pass 2NT or sign off in 3. (I've had three different partners passing 3M in similar auctions over the years - really incredible, since they were all very sane players.)
Kind regards,
Harald
0

  • 2 Pages +
  • 1
  • 2
  • You cannot start a new topic
  • You cannot reply to this topic

2 User(s) are reading this topic
0 members, 2 guests, 0 anonymous users