Long Diamonds

[msjennifer]

There is never a RIGHT answer on these weird hands - the percentage bid at love all is 3N. They are very likely cold for game - and we might even make +430 if they make the wrong lead/ switch. They need to have worked out what a cold double of 3N means, what 4m means, what 4M can or can't be... it is VERY hard... What do you bid holding AQJxx, KQtx, x, Axx over 1N - 3N by opps... partner leads heart from Kxx, J9xxxx, xx,xx... unlucky! if it goes double pass pass, I will bid 5 diamonds...

When one holds the major two suiter we bid 4D ,take out in majors with longer spades.Reverse the majors and the bid is now 4C,take out in majors with longer hearts.

[msjennifer]

There is never a RIGHT answer on these weird hands - the percentage bid at love all is 3N. They are very likely cold for game - and we might even make +430 if they make the wrong lead/ switch. They need to have worked out what a cold double of 3N means, what 4m means, what 4M can or can't be... it is VERY hard... What do you bid holding AQJxx, KQtx, x, Axx over 1N - 3N by opps... partner leads heart from Kxx, J9xxxx, xx,xx... unlucky! if it goes double pass pass, I will bid 5 diamonds...

When one holds the major two suiter we bid 4D ,take out in majors with longer spades.Reverse the majors and the bid is now 4C,take out in majors with longer hearts.

[msjennifer]

There is never a RIGHT answer on these weird hands - the percentage bid at love all is 3N. They are very likely cold for game - and we might even make +430 if they make the wrong lead/ switch. They need to have worked out what a cold double of 3N means, what 4m means, what 4M can or can't be... it is VERY hard... What do you bid holding AQJxx, KQtx, x, Axx over 1N - 3N by opps... partner leads heart from Kxx, J9xxxx, xx,xx... unlucky! if it goes double pass pass, I will bid 5 diamonds...

We bid 4D a takeout in majors with longer spades and with longer hearts we bid 4C as the take out.This is the treatment for a hand like the one posed as a problematic situation by you.

[bluechip10]

[hv=pc=n&s=s3h3dkqjt9432c642&d=n&v=0&b=1&a=1n(12-14)p]133|200[/hv]

 

Teams of 4 match, all non-vul, spots approximate.

 

Partner deals and opens a weak NT. What is your plan?

 

If you choose to bid 2NT (transfer to diamonds), opponents remain silent and partner bids 3♦, (promising QXX or better in diamonds). What now?

I'm an aggressive bidder. I bid 5 diamonds with reasonable expectation to make. If all your partner had was 3 aces, you may even miss slam. But you can check that with blackwood if you choose. Another reason for jumping to game is that the opps probably have a game in the majors themselves. I have done this all the time with great success.

[akwoo]

In a pairs game with a field mostly playing strong NT, I would've bid 3N over 1N, hoping to steal a top on the wrong lead and figuring 3N down a lot undoubled could still leave us ahead of all the pairs that opened lower and let their opponents in. There's less merit to this at teams (whether IMPs or BAM), but I'd consider it.

 

Having invited opponents to try to cash 5 tricks off the top with the minor suit transfer, I'm jumping to 5D now.

[P_Marlowe]

Hi,

 

#1 if I have a way to show the diamonds, I will use it, ..., I can always bid 5D later.

#2 If I pass now, ... they know, I am weak, and that we have a 9 card fit, ..., still they

need to get in at the 3 level.

Does Qxx or better, imply, that partner has the Ace? Or is xxxx better than Qxx?

I will pass, seeing where they end up, but I am considering 3NT, it will be hard for them

to double this, but if we get a lead director, I will retreat to 4D.

If they reach 4M, I will sacrifice in 5D, but will let them play 3M.

 

The problem with a 5D bid (direct or delayed): It is easy to double, 1 person only needs 2 1/2

tricks in his own hand.

 

With kind regards

Marlowe

[nige1]

Poll posted to BridgeWinners:

https://bridgewinner...m-2-5c19iwi8ot/

[Tramticket]

Poll posted to BridgeWinners:

https://bridgewinner...m-2-5c19iwi8ot/

Interesting. Thanks Nigel.

[Tramticket]

Does Qxx or better, imply, that partner has the Ace? Or is xxxx better than Qxx?

 

Yes, partner has the ace. Perhaps our agreement should be stated as "at least a three-card suit including at least one of the top three honours".

[nige1]

Simulation using Thomas Andrew's scripting language

vindicating Mr Ace and co:

Shows 5D more likely to make than 3N at double-dummy

/** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
LongD.ds. 22 Dec 2017. Nigel Guthrie. 
Trick expectation at double-dummy.
Dealer by Hans van Staveren & Henk Uijterwaal
http://dealergib1.bridgebase.com/tools/dealer/dealer.php
*** *** *** *** *** *** *** *** *** *** *** *** *** *** *** **/
predeal east S9, H7, DKQJT8642, C753

# 1N opener
ntHCP = 12
wHCP = hcp (west)
w1N =
(shape (west, any 4333 + any 4432 + any 5332) and 
 (ntHCP <= wHCP or wHCP <= ntHCP + 2))

# Tricks test. 
produce 100
condition w1N
action
frequency "Tricks taken by West in 3N" (tricks( west, notrump), 9, 13),
frequency "Tricks taken by West in 5D" (tricks( west, diamonds), 11, 13),

 

Results

Frequency Tricks taken by West in 3N: 
Low 85
9      8	
10    2
11    3
12    1	
13    1 

Frequency Tricks taken by West in 5D: 
Low 80
11    13
12	6
13    1 
Generated 310 hands 
Produced 100 hands 
Initial random seed 1514067121 
Time needed    2.637 sec

[Zelandakh]

Simulation using Thomas Andrew's scripting language

Do you not also need to add the information that Opener has ♦Axx(x)(x)?

[nige1]

Do you not also need to add the information that Opener has ♦Axx(x)(x)?

Only if responder intends to bid 2N, which few BBOers would.

Interestingly, 2N was the most common choice on Bridgewinners.

 

As a crude approximation to Zelandkh's suggestion, I predealt West ♦Axx;

but it made hardly any difference to the results

Edited December 23, 2017 by nige1