[pirate22]

Scenario.Pairs--forget all Vuln pairs IMP.

pass--pass--pass you hold qx--kxx--KJ10987--Ax

So to protect partner one opens 1 Diamond--- or does one open 2D {weak}
so bidding goes p--p--p--1d
x--xx-1sp.p! or does one bid 2d to show weakness? and a pass shows opening hand? 2sp x -p---now what-do we have balance points or does one bid 3 d.

partner murdered me whatever---2spades makes x

[inquiry]

You have an opening hand, so open.

1♦

When partner redoubles and you rebid 2♦, that suggest that you do not want to defend.

When partner doubles 2♠ and you hold two spades, time to do some head scratching. But you have told your hand.

If it makes, perhaps your defense could be better or your partner should reconsider his double. You had bid yoru hand. At pairs risky doubles are possible, but I think you stated this was imps. Your partner should be certain of a two trick set to risk the low level double.

[rhm]

I would bid 3NT.

If 2♠ goes down, I expect to make 3NT.
If 2 ♠ makes, 3NT might still make from my side.

You have conflicting evidence here: With Qx in ♠, I bet unless playing with a true expert, that partner does not have his second double, only a maximum Pass.

Incidentally the good chances of 3NT opposite a maximum pass, makes 1♦ the right opening bid. Given the bidding I deem it quite likely that it is partner who has an honor in ♦.

Pass is for the machos and 3♦ is for the ladies

Rainer Herrmann

[jvage]

inquiry, on 2011-February-04, 00:46, said:

Your partner should be certain of a two trick set to risk the low level double.

While I agree with the rest (I wouldn't mind a 2♦ opening either), this last statement is an "overbid". There are few things certain in life or bridge (can anyone construct a hand for partner where opponents have 7+ spades where partner is "certain" of even 1 down?), instead I would say "expect", bordering to "hope for".

In a recent Bridge World Kit Woolsey (I think) argued against experts fear of doubling possibly making partscores. If the opponents are vulnerable and you expect the same contract to be played undoubled in the other room a double got a positive IMP-expectation even if you think there is a 25% chance of the partscore making, 50% for 1 down and 25% for 2 down (his example was 3♠X, but it seems the same is true for 2♠X). There may be other reasons for not doubling, such as making declarers play easier.

PS: I also don't see why the opening is made to "protect" partner, you bid your hand and let partner worry about his.

John

[ewleongusa]

pirate22, on 2011-February-03, 23:50, said:

Scenario.Pairs--forget all Vuln pairs IMP.

pass--pass--pass you hold qx--kxx--KJ10987--Ax

So to protect partner one opens 1 Diamond--- or does one open 2D {weak}
so bidding goes p--p--p--1d
x--xx-1sp.p! or does one bid 2d to show weakness? and a pass shows opening hand? 2sp x -p---now what-do we have balance points or does one bid 3 d.

partner murdered me whatever---2spades makes x

If you have to open this hand in fourth seat I would open 2D which would be constructive. Why would one open a preemptive 2D bid in fourth seat when you can pass the hand out?

Eric Leong

[pooltuna]

ewleongusa, on 2011-February-04, 05:34, said:

If you have to open this hand in fourth seat I would open 2D which would be constructive. Why would one open a preemptive 2D bid in fourth seat when you can pass the hand out?

Eric Leong

Amen!!

So what does a 4th seat hand that opens 1♦ and rebids 2♦ now look like Even better is when the auction is 1M with a 2M rebid from 4th seat

[blackshoe]

I suspect such a hand would be better than one that opens 2♦, so perhaps a six card suit and 14 or 15 - 17 or 18 HCP.

[pooltuna]

blackshoe, on 2011-February-04, 08:27, said:

I suspect such a hand would be better than one that opens 2♦, so perhaps a six card suit and 14 or 15 - 17 or 18 HCP.

Alright so to complete our logical construction what do auction like

(P) P (P) 1♦
(P) 1x/2♣ (P) 3♦

or

(P) P (P) 1M
(P) 1x/2y (P) 3M ...y<M

now show...I would hope it is no longer invitational!

[TWO4BRIDGE]

A 2D open in 4th seat is NOT weak.

It is a 6 card suit with fairly good opening values ~ 13-16 ( ths may vary between partnerships ) .

2D here might keep the opps from finding their sp fit and also helps partner evaluate his hand better.

[quiddity]

Whatever 2D in 4th shows, it probably does not suggest a balanced hand with a broken suit and a bunch of no-trumpy side honors.

[peachy]

I open 2D, a "weak two with extras", an opening hand with a six card suit, the quality of which should resemble the traditional weak two suit quality. Even if I had no agreements whatsoever with partner, it is just bridge logic that in 4th seat there is nobody to preempt from doing anything, the best way to guarantee they don't get a plus score is Pass with a hand that would preempt in any other seat.