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HIgh or Low? A match-point decision

#1 User is offline   lamford 

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Posted 2017-January-11, 06:36


This was an interesting hand from last night's Winter Sims Pairs run by the EBU. Michael Byrne commenting thought the best line was unclear and I shared this view. West led the jack of clubs, an obvious singleton, against your normal spade game, and East won with the king and returned the three of clubs. If you trust him, therefore, he does not appear to have the ace of hearts. An expert might not tell you whether he does or doesn't, of course. How would you play?
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#2 User is offline   MrAce 

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Posted 2017-January-11, 06:49

I'd ruff 8

He does not seem to have A. Fooling me will also fool his pd, where I can construct hands W may not want to play under his K and declarer then can make.
But even if he fooled me, wins the A and plays 3rd , I ruff with 9.
If spade JT are split and 3-3 or W had 4 spades, I can still make.
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#3 User is offline   MrAce 

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Posted 2017-January-20, 18:23

So it has been a while and no one seems to be interested in this. What was the entire deal, Paul?
"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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#4 User is offline   lamford 

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Posted 2017-January-23, 04:08

Ok.
I prefer to give the lawmakers credit for stating things for a reason - barmar
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#5 User is offline   lamford 

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Posted 2017-January-23, 04:09

I ruffed with the 8 but was overruffed with the J from Jx. The AH was on my left and ruffing high worked.
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#6 User is offline   MrAce 

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Posted 2017-January-23, 04:52

 lamford, on 2017-January-23, 04:09, said:

I ruffed with the 8 but was overruffed with the J from Jx. The AH was on my left and ruffing high worked.


Ok, thanks.
"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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#7 User is offline   Phil 

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Posted 2017-January-23, 10:31

A. When the hA is on my left:

Ruffing high loses to JTxx off and on. (12)

Ruffing middle loses to Hx off (actual case) (8).

B. When its on my right.

Ruffing middle, middle loses to JTx off (4).

Ruff high loses to the same instances under A.

Seems clear not to waste a trump honor here.
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#8 User is offline   MrAce 

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Posted 2017-January-23, 17:06

 Phil, on 2017-January-23, 10:31, said:

A. When the hA is on my left:

Ruffing high loses to JTxx off and on. (12)

Ruffing middle loses to Hx off (actual case) (8).

B. When its on my right.

Ruffing middle, middle loses to JTx off (4).

Ruff high loses to the same instances under A.

Seems clear not to waste a trump honor here.


Phil, when we know that club lead is a stiff, W holding Hx trump is much less than normal, no?
"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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#9 User is offline   gszes 

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Posted 2017-January-28, 10:52

ruff high

ruffing with the 8 or 9 seems to cater to one holding and that is lho holding JTxx of spades AND that assumes rho no heart A since we would have an uppercut situation anyway. Any 33 or any 42 split where rho began with J7 or T7 still allows us to make even if rho does indeed have the heart ace because there is no uppercut. This does not even include all of the reasonable 42 splits where rho has the long spades.

I am curious did we auto cover the club J or did we duck and rho won the K anyway?
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#10 User is offline   Phil 

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Posted 2017-January-28, 21:27

 MrAce, on 2017-January-23, 17:06, said:

Phil, when we know that club lead is a stiff, W holding Hx trump is much less than normal, no?


Of course and if it were close it might swing the choice.
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#11 User is offline   GrahamJson 

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Posted 2017-February-02, 09:02

If I've got this right ruffling low only loses if east has precisely 4234 distribution with one spade honour. If he has three hearts you can still make the contract by way of a trump coup. This assumes the heart ace is on the left of course.
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#12 User is offline   lamford 

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Posted 2017-February-03, 05:21

 GrahamJson, on 2017-February-02, 09:02, said:

If I've got this right ruffling low only loses if east has precisely 4234 distribution with one spade honour. If he has three hearts you can still make the contract by way of a trump coup. This assumes the heart ace is on the left of course.

Sadly that was the layout and my attempt at a trump coup failed.
https://www.dropbox....gh_Low.png?dl=0
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