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An Auction F/NF/DNE?

#1 User is offline   kfay 

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Posted 2010-May-10, 15:34

1H-1S
2C-2N
3D
Kevin Fay
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#2 User is offline   gwnn 

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Posted 2010-May-10, 15:53

F 
... and I can prove it with my usual, flawless logic.
      George Carlin
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#3 User is offline   quiddity 

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Posted 2010-May-10, 15:55

Why wouldn't this be natural and forcing with short spades? Worried about the stopper for notrump, asking if we might be better off in hearts, etc..
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#4 User is offline   gwnn 

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Posted 2010-May-10, 15:58

I don't think 3 expresses anxiety. I think it's optimistic and is (mildly) interested in slam.
... and I can prove it with my usual, flawless logic.
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#5 User is offline   rogerclee 

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Posted 2010-May-10, 16:07

I think you need to be able to work out what to do with strong 5-5, weak 5-5, strong 6-4, and weak 6-4 on this auction, and strong 0544 is also important to be able to show if you can do it (but this hand is rarer since 0544 would usually have started 2D if strong and 2C if weak). How you do that is up to you, but playing 3D as naturalish is not one of the ways to accomplish this.
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#6 User is offline   awm 

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Posted 2010-May-10, 16:25

Forcing. Not always 100% natural. Basically 3 says "we have game values, but I'm not sure 3NT is the best contract" and leaves it to partner to work out what to do from there. Of course, we can infer that opener is not 3514 (would bid 3 over 2NT) nor is opener very balanced (i.e. 2524 would just 3NT). The general theme is that opener is worried about a spade stopper and/or opener has a six-card heart suit and might want to play 4 opposite a doubleton if responder is not loaded in the pointy suits.
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#7 User is offline   Phil 

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Posted 2010-May-10, 16:38

Forcing - pretty sure I posted this one (or something almost identical) 4-5 years ago. I remember Ben saying something like:

2 - non-forcing
2N - non-forcing
3 - logically forcing

I agreed with him then and now.

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#8 User is offline   rogerclee 

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Posted 2010-May-10, 16:43

Just two more things

1H-1S
2C-2N
??

One possible method in this auction is

3C = weak 5-5
3D = all heart hands, weak or strong
3H = strong 5-5

Also the auction

1H-1S
2D-2N
?

is very different due to the extra step. Now it makes sense to play 3C as showing weak catchall or strong 0544, and 3D/3H are forcing.
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#9 User is offline   jdonn 

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Posted 2010-May-10, 17:16

awm, on May 10 2010, 05:25 PM, said:

Forcing. Not always 100% natural. Basically 3 says "we have game values, but I'm not sure 3NT is the best contract" and leaves it to partner to work out what to do from there. Of course, we can infer that opener is not 3514 (would bid 3 over 2NT) nor is opener very balanced (i.e. 2524 would just 3NT). The general theme is that opener is worried about a spade stopper and/or opener has a six-card heart suit and might want to play 4 opposite a doubleton if responder is not loaded in the pointy suits.

So in what way is that not 100% natural? And if opener has a 6 card heart suit and wants to offer a choice of games why didn't he bid 3 instead?
Please let me know about any questions or interest or bug reports about GIB.
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#10 User is offline   aguahombre 

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Posted 2010-May-10, 17:20

accepting game ---probably 1-5-3-4, suggesting we maybe belong in our 6-3 diamond fit. 2/1 auction. (2 diamonds the first time by responder not possible with only 11-12 points, maybe).

Similar, but not the same as, 1S-1NT-2m-2NT- 3H, which is semi automatic with a game acceptance and 3 hearts (2/1 auction where 5-card heart suit could never be mentioned by responder).
"Bidding Spades to show spades can work well." (Kenberg)
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#11 User is offline   awm 

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Posted 2010-May-10, 18:33

The problem is that I'm not convinced 1-1-2-2N-3 should be forcing.

Certainly there is an old-fashioned style where minimum 6-4 hands are supposed to rebid 2 at second turn and then 3 at third turn, in which case the above sequence is stronger. But I don't think many people play this style now -- most seem to prefer to almost always rebid 2 in order to show nine cards of shape instead of six. Assuming most minimum 6-4 hands would rebid 2, it seems necessary to have a way to get out in 3 (which could easily be the best contract) -- perhaps even more essential since people open pretty light these days with 6-4 shape.

Assuming 1-1-2-2N-3 is NF, we need to bid 3 with patterns like 1624 and even 2614 in order to find the best game.
Adam W. Meyerson
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#12 User is offline   aguahombre 

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Posted 2010-May-10, 18:49

Yeh, I am old fashioned. but 6 hearts and 4 clubs was ten cards of shape even back then.
"Bidding Spades to show spades can work well." (Kenberg)
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#13 User is offline   jdonn 

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Posted 2010-May-10, 18:52

Adam I think we play bridge on different planets, 3 forcing is still standard and much more commonly played than nf. If you want to cater to everything you should play something more like what roger showed anyway.
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#14 User is offline   awm 

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Posted 2010-May-10, 18:59

Well, suppose we took a BBF poll of:

xx KJ9xxx x AQxx

I expect that most would open 1 on this hand rather than 2 or pass. I also expect that most would rebid 2 on this hand after 1-P-1-P. Feel free to disagree on either of these points; we can actually take the poll if you want.

Assuming I'm right, what does this hand bid after 1-1-2-2NT? It really seems like passing could be a disaster; say partner has KJxx Qx Qxxx Kxx for example. You could easily lose the first 4-5 diamond tricks and a heart and 1-2 spades for down two, while 3 is really good and 4 has a bit of play. Even if the opponents lead a black suit it doesn't necessarily save 2NT.

I agree that in some sense 3 forcing is standard (it's certainly very old-fashioned standard) but I think the non-forcing treatment is a logical consequence of some very common modern stylistic choices (opening very light on 6-4 hands, rebidding four-card side suits rather than showing the sixth card in the suit opened). Just because not all modern players who adhere to these common modern stylistic treatments have yet realized the logical consequences don't mean they aren't logical consequences... :)
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#15 User is offline   jdonn 

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Posted 2010-May-10, 19:06

Are we talking about what's a good idea or what's standard? I don't think the consequence must follow anyway, 3 can also be a disaster opposite your example hand if partner has a stiff heart so you are fine to take your chances passing 2NT. Game is really not likely to be good and even less likely to be cold.
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#16 User is offline   blackshoe 

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Posted 2010-May-10, 19:09

It may well be that some pairs have illogical agreements - or no agreement at all.
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#17 User is offline   jdonn 

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Posted 2010-May-10, 19:12

Btw even better than what roger said on this auction is something more like transfers by responder starting with 2. You could work out the details for yourself but it would be such that you would be able to stop in 2NT if responder has a singleton heart but 3 if he has a doubleton.

You might counter we could easily have this discussion after a 2 rebid instead but in that case play the transfers by opener after responder's 2NT rebid.

Transfers!
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#18 User is online   mike777 

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Posted 2010-May-10, 19:15

100% forcing....any bid over 2nt is game forcing.....that means with some weakish hand you just pass 2nt.
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#19 User is offline   straube 

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Posted 2010-May-10, 19:43

awm, on May 10 2010, 07:59 PM, said:

Well, suppose we took a BBF poll of:

xx KJ9xxx x AQxx

I expect that most would open 1 on this hand rather than 2 or pass. I also expect that most would rebid 2 on this hand after 1-P-1-P. Feel free to disagree on either of these points; we can actually take the poll if you want.

Assuming I'm right, what does this hand bid after 1-1-2-2NT? It really seems like passing could be a disaster; say partner has KJxx Qx Qxxx Kxx for example. You could easily lose the first 4-5 diamond tricks and a heart and 1-2 spades for down two, while 3 is really good and 4 has a bit of play. Even if the opponents lead a black suit it doesn't necessarily save 2NT.

I agree that in some sense 3 forcing is standard (it's certainly very old-fashioned standard) but I think the non-forcing treatment is a logical consequence of some very common modern stylistic choices (opening very light on 6-4 hands, rebidding four-card side suits rather than showing the sixth card in the suit opened). Just because not all modern players who adhere to these common modern stylistic treatments have yet realized the logical consequences don't mean they aren't logical consequences... :)

Seems like this new style of bidding gets us up too high. If I'm playing a standard system, I still like 1H and a 2H rebid because it limits my hand. If I play a club system, I would rather open 1H and rebid 2C.

Over 1H-1S, 2C with KJxx Qx Qxxx Kxx I'll probably rebid 2H because this hand has soft values (the knr is 8.95) and I don't want to bid 2N unless I have a hand worth a bad 11.

Without agreement, I'd take 1H-1S, 2C-2N-3D as natural showing a 1-5-3-4 pattern with somewhere between 14 and 18 hcps. Forcing to 3N or 4m I would think.
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#20 User is offline   aguahombre 

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Posted 2010-May-10, 20:03

mike777, on May 10 2010, 07:15 PM, said:

any bid over 2nt is game forcing.....that means with some weakish you hand you just pass 2nt.

True, this is some (lots of) people's agreement. But also common is that the 3C rebid is not. This, IMO, is a lot more common and standard NF (3C), than 3H NF.
"Bidding Spades to show spades can work well." (Kenberg)
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