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Best Line % of success

#1 User is offline   jmcw 

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Posted 2010-September-20, 22:00

N E S W
- 12 3
p p 4 AP


West led a low to the King, East continued with the Ace.

3 lines come to mind.

1. Ruff, bang down A&K of trumps if the Queen falls then play to loose no more than 2 tricks.

2. Ruff, play the J trying to create and entry to dummy in order to limit loosers to 1.

3. Ruff high(8), play 2 toward dummy and insert the 6 if the Q does not appear, again attempting to get to dummy!

Can anyone provide some math on the chances of success and additionally, if playing line 1 and the Q falls doubleton then how should be played for 2 loosers.
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#2 User is offline   MFA 

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Posted 2010-September-21, 04:02

A (too?) quick analysis:

If we bang down AK we need Q to be double.
If lead middle heart, we need A to be double, but onside as well.

So we should lead middle heart only if we estimate that the chance of sneaking past west's Qxx is greater than the risk of A offside.

There are some minor issues with a stiff Q or JT tight also to consider.

If we bang down Qx double, we should play diamonds from the top rather than duck the first round, since a stiff T/J is in principle twice as likely as a stiff A.
Michael Askgaard
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#3 User is offline   hanp 

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Posted 2010-September-21, 04:12

Playing diamonds from the top also works if it is Jx or Tx, so it's really not close..
and the result can be plotted on a graph.
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#4 User is offline   Fluffy 

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Posted 2010-September-21, 06:21

hanp, on Sep 21 2010, 10:12 AM, said:

Playing diamonds from the top also works if it is Jx or Tx, so it's really not close..

what I understand here is nonsense, so I supose I missunderstood :blink:, Jx and 10x are irrelevant.
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#5 User is offline   hanp 

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Posted 2010-September-21, 07:16

This morning it was a 5-2 fit.
and the result can be plotted on a graph.
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#6 User is offline   pooltuna 

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Posted 2010-September-21, 08:02

hanp, on Sep 21 2010, 05:12 AM, said:

Playing diamonds from the top also works if it is Jx or Tx, so it's really not close..

yes but the objective is to lose only 1 .
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#7 User is offline   jmcw 

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Posted 2010-September-21, 18:13

MFA, on Sep 21 2010, 05:02 AM, said:

A (too?) quick analysis:

If we bang down AK we need Q to be double.
If lead middle heart, we need A to be double, but onside as well.

So we should lead middle heart only if we estimate that the chance of sneaking past west's Qxx is greater than the risk of A offside.

There are some minor issues with a stiff Q or JT tight also to consider.

If we bang down Qx double, we should play diamonds from the top rather than duck the first round, since a stiff T/J is in principle twice as likely as a stiff A.

If you cannot get to dummy to lead a toward the KQ then you will loose at least 2 trick unless the JT are dub.
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#8 User is offline   MFA 

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Posted 2010-September-22, 02:48

jmcw, on Sep 22 2010, 02:13 AM, said:

MFA, on Sep 21 2010, 05:02 AM, said:

A (too?) quick analysis:

If we bang down AK we need Q to be double.
If lead middle heart, we need A to be double, but onside as well.

So we should lead middle heart only if we estimate that the chance of sneaking past west's Qxx is greater than the risk of A offside.

There are some minor issues with a stiff Q or JT tight also to consider.

If we bang down Qx double, we should play diamonds from the top rather than duck the first round, since a stiff T/J is in principle twice as likely as a stiff A.

If you cannot get to dummy to lead a toward the KQ then you will loose at least 2 trick unless the JT are dub.

Que?
I think I did figure that part out...
Michael Askgaard
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