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2/1: Overcalls, Showing A New Suit Specific/General

#1 User is offline   gurgistan 

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Posted 2010-September-21, 12:31

Scoring: IMP

West as opener bids 1. Partner overcalls 2. East passes. I recognise that partner has a 5 card suit and 10 hcp. I have stoppers in all the suits and 14hcp. I think that diamonds will provide the bulk of tricks and I decide to bid 3N. It is passed out.

Questions:

1. Should I have bid 2 or do I need a five card suit for that?

2. If I had shown hearts as a new suit, would it be forcing or non-forcing upon partner?

3. Was 3N a calculated bid or just a gamble?

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#2 User is offline   Stephen Tu 

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Posted 2010-September-21, 12:46

Note: You should probably omit the "2/1" tag on most of your posts. "2/1" only directly affects auctions related to 1M-2x and 1M-1nt (forcing). Most of the rest is kind of universal, applies to all systems.

1. You need 5 cds to introduce a new suit over partner's overcall.
2. Whether a new suit is forcing depends on agreements. Most common is non-forcing (but constructive, decent hand, not weak). To force you have to cue-bid first. Or maybe jump shift, but that is subject to multiple interpretations.
3. 3nt is OK I suppose, but 2s is probably better, partner might bid hearts, if not you can bid 3nt later. The delayed sequence should perhaps imply to partner that he should pull to 5d on some hands.
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#3 User is offline   kfay 

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Posted 2010-September-21, 16:44

Firstly, 2 should show a considerably better hand than a 5-card suit and 10 HCP at this vulnerability, and usually in general.

If you always make crappy 2m overcalls, you will get punished against competent opponents, end of story. Broken suits are bad suits to bid in this position, and hands with a lot of losers are bad to bid in this position. They can punish you easily with the usually obvious balancing double, and frequently will be able to outbid you anyway since majors > minors. Experience will eventually teach that the reward/risk just isn't there.


Just because you've agreed that overcaller's 2m shows, what I would deem, a relatively short and weak suit doesn't mean that responder's 2M isn't above shortness/weakness as well. If partner has 4 hearts and also diamonds, they will often have doubled. 2 here definitely guarantees 5 to me. There comes a point where bidding suits shows more than a 4-bagger... and that point is the 2-level.

If you want to look for a heart fit, then I'd recommend that you bid a game-forcing 2 on your way to bidding 3NT. That would give you room to investigate. And playing with a partner who might have a POS diamond suit even though we're staring at the K that's probably what I'd bid. We can bid 3NT later, although we've given the defense more knowledge about our hand it probably won't be a big deal.
Kevin Fay
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#4 User is offline   bucky 

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Posted 2010-September-21, 20:14

gurgistan, on Sep 21 2010, 01:31 PM, said:

Scoring: IMP

West as opener bids 1. Partner overcalls 2. East passes. I recognise that partner has a 5 card suit and 10 hcp. I have stoppers in all the suits and 14hcp. I think that diamonds will provide the bulk of tricks and I decide to bid 3N. It is passed out.

Questions:

1. Should I have bid 2 or do I need a five card suit for that?

2. If I had shown hearts as a new suit, would it be forcing or non-forcing upon partner?

3. Was 3N a calculated bid or just a gamble?

1. 2 should show 5+.

2. Depends on your agreement. You can choose to play it as forcing, sign-off, or constructive. I think the majority in North America play it as constructive but non-forcing.

3. Have you thought about consulting partner by bidding 2 first (assuming he doesn't take it as natural and pass)?
 
 
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#5 User is offline   Zelandakh 

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Posted 2010-September-21, 22:41

1. It depends on your style of overcalls and doubles and whether the cue bid is a good raise or a general game force. Standard in America would (I think) be 5+ but that is not true everywhere. If you play a more traditional style of double and use the cue bid as a raise then 4+ actually makes alot of sense.

2. For me the default for a new suit over an overcall is forcing. It is a matter of partnership agreement whether new suits are non-forcing or forcing or a mix of the two. Forcing is simplest for players that are learning imho since it mimics the same structure as over an opening bid.

3. There is nothing wrong with 3NT which you should have confidence in making after partner's vulnerable overcall. You could also bid 2S, which might be a good diamonds raise or just a general force depending on agreement.
(-: Zel :-)
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#6 User is offline   P_Marlowe 

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Posted 2010-September-22, 03:33

#1 2H showes a 5 carder
#2 agreement depend, but I prefer NF
#3 3NT was fine, you can assume to have 5 diamond tricks, that will be
the case, if p has AQxxx in diamond, 2 Aces, the King of clubs + the
add. values from p, at the moment we took only AQ in diamonds into
account will provide reasonable play for 2 add. tricks
Holding Axxx in their suit allowes you also to duck spades a long time,
to cut down their communication
For that matter, you should also bid 3NT, if p would have made a weak
jump overcall with 3D, you would now assume, that you get 6-7
diamond tricks.

With kind regards
Marlowe
With kind regards
Uwe Gebhardt (P_Marlowe)
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#7 User is offline   andy_h 

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Posted 2010-September-22, 09:01

Sorry but I hate 3NT (Edit, I mean 3NT). Our hand is full of controls, support for partner's diamonds and there is absolutely no rush to get to 3NT when we can take the slower route. Lots of hands can make slam so that's what I bid.
- Andy -

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We're in the universe, and the universe is in us.
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#8 User is offline   Gerben42 

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Posted 2010-September-22, 09:06

A two-level overcall needs a bit more than 10 HCP and a 5-card suit. It needs to be a good hand. I think bidding 3NT is obvious. Expect to make an overtrick.
Two wrongs don't make a right, but three lefts do!
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#9 User is offline   jdonn 

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Posted 2010-September-22, 10:39

Gerben42, on Sep 22 2010, 10:06 AM, said:

A two-level overcall needs a bit more than 10 HCP and a 5-card suit. It needs to be a good hand. I think bidding 3NT is obvious. Expect to make an overtrick.

I think bidding 3NT is terrible. Why not cuebid first? Not only may you belong in hearts (xx KQxx QJTxxx A) but you could very easily have a slam (x Kx AQJxxxx Axx = grand! Minus heart king = slam) 3NT is not going anywhere.
Please let me know about any questions or interest or bug reports about GIB.
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#10 User is offline   hanp 

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Posted 2010-September-22, 11:04

jdonn, on Sep 22 2010, 11:39 AM, said:

I think bidding 3NT is terrible. Why not cuebid first?

Same here but I waited until Josh posted it.
and the result can be plotted on a graph.
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#11 User is offline   aguahombre 

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Posted 2010-September-22, 11:13

Stephen Tu, on Sep 21 2010, 12:46 PM, said:

Note:  You should probably omit the "2/1" tag on most of your posts.  "2/1" only directly affects auctions related to 1M-2x and 1M-1nt (forcing).  Most of the rest is kind of universal, applies to all systems.


Yes. Overcalls at the two-level are a whole different meaning for "2/1", and not part of the basic system.

http://home.comcast....idge/2over1.htm by Karen Walker provides the basics of 2/1 with links to additions and modifications.

http://www.imp-bridg...cles/2over1.htm by Fred is another good source.

Both focus on 1M-2m and 1M-1N as being the only true situations applicable to a 2/1 style.

Off-topic, I know; but it would be less distracting if the term "2/1" were not used in posts where it doesn't apply.
"Bidding Spades to show spades can work well." (Kenberg)
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#12 User is offline   bucky 

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Posted 2010-September-22, 13:10

jdonn, on Sep 22 2010, 11:39 AM, said:

I think bidding 3NT is terrible. Why not cuebid first? Not only may you belong in hearts (xx KQxx QJTxxx A) but you could very easily have a slam (x Kx AQJxxxx Axx = grand! Minus heart king = slam) 3NT is not going anywhere.

I have a feeling that OP may not want to cuebid to confuse partner. That may be why 2 wasn't even in the list of possible bids he gave. I once did it on a similar hand with a random expert partner on BBO, and I was left playing in 2.
 
 
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#13 User is offline   ArtK78 

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Posted 2010-September-22, 13:21

bucky, on Sep 22 2010, 02:10 PM, said:

jdonn, on Sep 22 2010, 11:39 AM, said:

I think bidding 3NT is terrible. Why not cuebid first? Not only may you belong in hearts (xx KQxx QJTxxx A) but you could very easily have a slam (x Kx AQJxxxx Axx = grand! Minus heart king = slam) 3NT is not going anywhere.

I have a feeling that OP may not want to cuebid to confuse partner. That may be why 2 wasn't even in the list of possible bids he gave. I once did it on a similar hand with a random expert partner on BBO, and I was left playing in 2.

More "random" than "expert" I suspect.

Really, bridge is a partnership game. 2 is the only reasonable call on these cards playing with anyone you trust.
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#14 User is offline   jdonn 

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Posted 2010-September-22, 13:25

I agree if partner passes a cuebid of the opponent's suit then you shouldn't cuebid the opponent's suit. However I don't see what that realization has to do with bridge.
Please let me know about any questions or interest or bug reports about GIB.
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#15 User is offline   bucky 

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Posted 2010-September-22, 13:43

jdonn, on Sep 22 2010, 02:25 PM, said:

I agree if partner passes a cuebid of the opponent's suit then you shouldn't cuebid the opponent's suit. However I don't see what that realization has to do with bridge.

I agree with you Josh. I was just speculating why OP didn't think of the 2 bid, and I was reminded of the experience I had with a BBO-expert. But yes, that doesn't affect what SHOULD have been done.
 
 
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#16 User is offline   gwnn 

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Posted 2010-September-22, 14:19

nothing to do with 2/1.
... and I can prove it with my usual, flawless logic.
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