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gameforcing or not ?

#1 User is offline   Ronald7777 

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Posted 2013-November-22, 10:19

playing Lebensohl :

1NT - (3♣) - 3♠

Is 3S gamerforcing or not ?

thx
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#2 User is offline   helene_t 

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Posted 2013-November-22, 10:29

Hi Ronald,

welcome to the forum!

Yes, this is played as a game force by most (although I think Cascade on this forum prefers to play it as nonforcing - probably it makes more sense to play it as nonforcing if you play weak NT than if you play strong).

It means that a weak hand with long spades will have to either pass or double. Double, of course, is an option only if you have a bit of defense as partner will sometimes pass it.

It is probably better to play 3♥ as a transfer to spades so that you can bid with both weak and strong hands, but standard is natural and forcing.
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#3 User is offline   kenrexford 

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Posted 2013-November-22, 10:59

This is a really good sequence for "Systems On" and a "Stolen Bid Double," played "As If Opened 2NT." Meaning:

X = Puppet Stayman
3♦ = Transfer to hearts
3♥ = Transfer to spades
3♠ = GF with "diamonds" (typically a 3NT raise without a stopper)
3NT = to play
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#4 User is offline   Lorne50 

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Posted 2013-November-24, 08:23

Without discussion it is forcing, but if you run simulations you can show that playing it NF and guessing the right game when you are stronger will win more often than it loses.

However there are other methods that are better - Rubinsohl (basically transfers with a few twists) is one worth looking at (http://www.bridgeguy.../Rubinsohl.html).
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#5 User is offline   MrAce 

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Posted 2013-November-26, 07:11

View PostRonald7777, on 2013-November-22, 10:19, said:

playing Lebensohl



It is % 100 GF., under your description of agreements.



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#6 User is offline   aguahombre 

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Posted 2013-November-26, 11:17

I guess I am ignorant about "Lebensohl" over 3C.

Playing 1430, is 1N (2S) 3H gameforcing?
"Bidding Spades to show spades can work well." (Kenberg)
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#7 User is offline   Ronald7777 

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Posted 2013-November-27, 02:35

Thanks for your answer eveybody :D

Meanwhile I discovered a book of Ron Andersen "The Lebensohl Convention Complete".
On the pages 29-31 the author describes my problem.
Playing Lebensohl 3♠ is forcing.

greetings
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#8 User is offline   helene_t 

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Posted 2013-November-27, 03:24

But Ronald, as Aquahombre somewhat sarcastically hints: This has nothing to do with Lebensohl.

Lebensohl is an artificial 2NT bid. So playing Lebensohl has consequences for the forcing character of example
1NT-(2♠)-3♥*
because 3♥ denies a hand suitable for a 2NT bid.

After an interference at the 3-level, Lebensohl obviously can't apply.
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#9 User is offline   Antrax 

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Posted 2013-November-27, 04:00

Helene you don't play insufficient Lebensohl over 3♣?
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#10 User is offline   Trinidad 

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Posted 2013-November-27, 04:37

View PostAntrax, on 2013-November-27, 04:00, said:

Helene you don't play insufficient Lebensohl over 3♣?

Palooka!

It's obviously superior to play insufficient transfers in combination with natural sufficient bids. It is very important to rightside the contract in these competitive auctions.

Rik
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#11 User is offline   MrAce 

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Posted 2013-November-27, 04:54

View Postaguahombre, on 2013-November-26, 11:17, said:

I guess I am ignorant about "Lebensohl" over 3C.

Playing 1430, is 1N (2S) 3H gameforcing?


Not fair to reply with sarcasm to sarcasm Posted Image
"Genius has its own limitations, however stupidity has no such boundaries!"
"It's only when a mosquito lands on your testicles that you realize there is always a way to solve problems without using violence!"

"Well to be perfectly honest, in my humble opinion, of course without offending anyone who thinks differently from my point of view, but also by looking into this matter in a different perspective and without being condemning of one's view's and by trying to make it objectified, and by considering each and every one's valid opinion, I honestly believe that I completely forgot what I was going to say."





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#12 User is offline   helene_t 

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Posted 2013-November-27, 05:08

View PostTrinidad, on 2013-November-27, 04:37, said:

Palooka!

It's obviously superior to play insufficient transfers in combination with natural sufficient bids. It is very important to rightside the contract in these competitive auctions.

Rik

I think it's better to play the reverse. If you want partner to declarer, make a sufficient transfer. If you want to declare, make an insufficient bid baring partner and then bid the contract.
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#13 User is offline   Trinidad 

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Posted 2013-November-27, 07:27

View Posthelene_t, on 2013-November-27, 05:08, said:

I think it's better to play the reverse. If you want partner to declarer, make a sufficient transfer. If you want to declare, make an insufficient bid baring partner and then bid the contract.

Your view is outdated. It was the correct view before the last rule change about insufficient bids. It saddens me to see that you haven't been following the theoretical developments in this area.

Your system often fails in practice since partner will forget that your sufficient bids are transfers, and poor results are inevitable. Keep it simple and play natural at the three level and (obviously) transfers at the two level.

Someone less enlightened (not you, of course) might think that it doesn't matter which one is the transfer and which one is natural. They might think that you are equally likely to forget transfers in both cases.

But they have overlooked the additional possibilities that the insufficient bid gives: Once you have made your insufficient transfer, you simply say: "Oops, I see that my transfer was insufficient.". All that is left to do then is tell the TD that sufficient bids at the three level would also have been transfers (with partner nodding, obviously) and you are set. With the new laws one can replace the insufficient transfer by a sufficient transfer, no problem.

Rik

P.S. Do I really need to add a smiley? ;)
I want my opponents to leave my table with a smile on their face and without matchpoints on their score card - in that order.
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#14 User is online   blackshoe 

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Posted 2013-November-27, 08:41

Baring partner might have some rather unfortunate consequences. :P
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