BBO Discussion Forums: Requirements for 2 suited overcalls - BBO Discussion Forums

Jump to content

Page 1 of 1
  • You cannot start a new topic
  • You cannot reply to this topic

Requirements for 2 suited overcalls especially at unfav vuln

#1 User is offline   Chamaco 

  • PipPipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 2,909
  • Joined: 2003-December-02
  • Gender:Male
  • Location:Rimini-Bologna (Italy)
  • Interests:Chess, Bridge, Jazz, European Cinema, Motorbiking, Tango dancing

Posted 2004-August-12, 05:36

Scoring: MP

1-(2NT)-4- Dbl
all pass


I was S and I took North's unusual 2NT as a good hand, given unfavourable vuln.
At equal vuln, I would have passed, but given the vuilnerability, I assumed N to have more defense potential, so I doubled.

Declarer picked the trump suit for 1 losers (he wd have done it anyway even if playing undoubled, given the announced minors in N) and conceded the A of H.

So let's take this hand as a starting point to define your suggestions to deal with partner's 2-suited overcalls.
I assume in the rest of the post we use Michael's cuebid and Unusual 2NT.
I know there other good methods out there (other 2 suited overcalls such as Roman or Ghestem, transfer overcalls, Meta defense, etc), but for the purpose of this post please do not start the discussion on other bidding methods: I want to focus on hand evaluation.
Thanks ! :)

We currently play MINIMAX ranges when not vuln or when at equal vuln.
MINIMAX is defined as either less than opening in HCP (say 6/-10-11) OR reverse in HCP (15/16+), since intermediate hands (11-15) will just bid the suits.

1) do you think defining two suiters in terms of LOSERS instead of HCP will work better ? The problem I can think of in using losers is that pard will have more trouble deciding to penalize.

2) what are your suggested requirements for a 2-suiters at unfavourable vulnerability? Could you opost an example hand of the worse hand that would use Michaels' or Unusual 2NT ?


3) DO YOU THINK IT IS WISE TO USE A 2 SUITED OVERCALL HAVING 65 SHAPE (ONE SUIT LONGER)? Does your opinion change on this issue whether the 65 is in
a ) the minors
b ) the majors
c ) major-minor
"Bridge is like dance: technique's important but what really matters is not to step on partner's feet !"
0

#2 User is offline   Free 

  • mmm Duvel
  • PipPipPipPipPipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 10,728
  • Joined: 2003-July-30
  • Gender:Male
  • Location:Belgium
  • Interests:Duvel, Whisky

Posted 2004-August-12, 05:56

Using losers to determine weither or not you'll overcall or show 2-suiters might be a help, but you won't have better hands all of a sudden. The hand you show has maximum 6 losers, so it's good enough for a 2NT bid! This doesn't give you any defensive tricks however.

This hand is a nice hand to play with, but not to defend with. Imo, the 2NT bidder should pull the dbl and bid 5 to show better s. He knows he has 0-1 trick, and defending in a trump contract with a trump void isn't the best you can do.
"It may be rude to leave to go to the bathroom, but it's downright stupid to sit there and piss yourself" - blackshoe
0

#3 User is offline   Chamaco 

  • PipPipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 2,909
  • Joined: 2003-December-02
  • Gender:Male
  • Location:Rimini-Bologna (Italy)
  • Interests:Chess, Bridge, Jazz, European Cinema, Motorbiking, Tango dancing

Posted 2004-August-12, 05:58

Free, on Aug 12 2004, 11:56 AM, said:

Using losers to determine weither or not you'll overcall or show 2-suiters might be a help, but you won't have better hands all of a sudden.  The hand you show has maximum 6 losers, so it's good enough for a 2NT bid!  This doesn't give you any defensive tricks however.

This hand is a nice hand to play with, but not to defend with.  Imo, the 2NT bidder should pull the dbl and bid 5 to show better s.  He knows he has 0-1 trick, and defending in a trump contract with a trump void isn't the best you can do.

Ty Frederic :).

Another question (I'll add to the original post) is:

DO YOU THINK IT IS WISE TO USE A 2 SUITER HAVING 65 SHAPE (ONE SUIT LONGER)?
"Bridge is like dance: technique's important but what really matters is not to step on partner's feet !"
0

#4 User is offline   Free 

  • mmm Duvel
  • PipPipPipPipPipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 10,728
  • Joined: 2003-July-30
  • Gender:Male
  • Location:Belgium
  • Interests:Duvel, Whisky

Posted 2004-August-12, 06:03

Yes and no, since I usually overcall with 5-4's :) In this case, I don't think it's the best idea to show 2-suiter. First of all, the are a lot better AND longer than , and second, you give too much information to opps, without willing to play in anyway. What happens if they start ? You have to ruff, create your and , use another trump to get back to your s,... I think it's better to ignore the s here.

However, say you have:
Q9xxxx
KQJTx
I would definetly show a 2-suiter.
"It may be rude to leave to go to the bathroom, but it's downright stupid to sit there and piss yourself" - blackshoe
0

#5 User is offline   whereagles 

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

Posted 2004-August-12, 08:14

1. I prefer losers to points. Points work ok for NT contracts on balanced hands, but that's just about it.

2. I'm from the school of two-suited overcalls on any strenght. To show a 4 loser or better hand double or cue later.

3. Shapes 65 or 66 or 75 are ok. With a 66 or 65 bid NT later. With 75 or a good 65 bid the longer suit later.

As for your hand, double is risky. While the misfit gives you some hopes of defeating the contract, it's by no means a certainty. After all, they took you out of an undertrick or two in 3 clubs, so any plus score here will be good.

By the way I wouldn't take out the double on 4S. The 2NT overcall doesn't promise any defensive values, so why overrule pard?
0

#6 User is offline   pclayton 

  • PipPipPipPipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 9,151
  • Joined: 2003-June-11
  • Location:Southern California

Posted 2004-August-12, 11:35

Chamaco, on Aug 12 2004, 03:36 AM, said:

Scoring: MP

1-(2NT)-4- Dbl
all pass


I was S and I took North's unusual 2NT as a good hand, given unfavourable vuln.
At equal vuln, I would have passed, but given the vuilnerability, I assumed N to have more defense potential, so I doubled.

Declarer picked the trump suit for 1 losers (he wd have done it anyway even if playing undoubled, given the announced minors in N) and conceded the A of H.

So let's take this hand as a starting point to define your suggestions to deal with partner's 2-suited overcalls.
I assume in the rest of the post we use Michael's cuebid and Unusual 2NT.
I know there other good methods out there (other 2 suited overcalls such as Roman or Ghestem, transfer overcalls, Meta defense, etc), but for the purpose of this post please do not start the discussion on other bidding methods: I want to focus on hand evaluation.
Thanks ! :huh:

We currently play MINIMAX ranges when not vuln or when at equal vuln.
MINIMAX is defined as either less than opening in HCP (say 6/-10-11) OR reverse in HCP (15/16+), since intermediate hands (11-15) will just bid the suits.

1) do you think defining two suiters in terms of LOSERS instead of HCP will work better ? The problem I can think of in using losers is that pard will have more trouble deciding to penalize.

2) what are your suggested requirements for a 2-suiters at unfavourable vulnerability? Could you opost an example hand of the worse hand that would use Michaels' or Unusual 2NT ?


3) DO YOU THINK IT IS WISE TO USE A 2 SUITED OVERCALL HAVING 65 SHAPE (ONE SUIT LONGER)? Does your opinion change on this issue whether the 65 is in
a ) the minors
b ) the majors
c ) major-minor

Make a 2 suited call either with a good hand or a poor hand playing standard. The vulnerability only means you might have an extra card in one of your suits, or some better intermediates.

I would expect some company with -590 here, even then 4 might go down on just looking at the NS cards. I'd double at IMPs, but not at MP's by the way.

It also looks like you are taking a bath in 5.

Playing my preferred system of Overcall Structure, all 2 suited bids are based on loser count.
"Phil" on BBO
0

#7 User is offline   Chamaco 

  • PipPipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 2,909
  • Joined: 2003-December-02
  • Gender:Male
  • Location:Rimini-Bologna (Italy)
  • Interests:Chess, Bridge, Jazz, European Cinema, Motorbiking, Tango dancing

Posted 2004-August-12, 17:31

Question A )

Could you please post the worse hand you'd overcall at UNFAVORABLE vulnerability ?
I really need concrete examples B)

1- 1M-(2NT) Unusual 2NT

2- 1m-(2m) Michaels

3- 1M-(2M) Major-minor 2 suiter

-------------------------------------------------------------------------------

Question B )

For those who use losers.
How many losers do you promise with a 2-suited bid at:

1) none vuln
2) non vuln vs vuln
3) all vuln
4) vuln vs not
"Bridge is like dance: technique's important but what really matters is not to step on partner's feet !"
0

#8 User is offline   Free 

  • mmm Duvel
  • PipPipPipPipPipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 10,728
  • Joined: 2003-July-30
  • Gender:Male
  • Location:Belgium
  • Interests:Duvel, Whisky

Posted 2004-August-12, 18:50

Question A is hard to tell, since I bid with all kind of garbage B)

Question B is a matter of the level you're going to play:

V 2 level: 7 losers
V 3 level: 6 losers
...

NV 2 level: 8 losers
NV 3 level: 7 losers
...

this means you need less losers for a 1-2 than for a 1-2 for example. I don't make a difference when opps are V or NV.
"It may be rude to leave to go to the bathroom, but it's downright stupid to sit there and piss yourself" - blackshoe
0

Page 1 of 1
  • You cannot start a new topic
  • You cannot reply to this topic

1 User(s) are reading this topic
0 members, 1 guests, 0 anonymous users