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Suit combo Kxx vs Jxxxx

#1 User is offline   benlessard 

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Posted 2012-December-12, 01:42


From Psych "I mean, Gus and I never see eye-to-eye on work stuff.
For instance, he doesn't like being used as a human shield when we're being shot at.
I happen to think it's a very noble way to meet one's maker, especially for a guy like him.
Bottom line is we never let that difference of opinion interfere with anything."
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#2 User is offline   1eyedjack 

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Posted 2012-December-12, 08:03

Are we permitted to know the trick target? Or perhaps you think it irrelevant?
Psych (pron. saik): A gross and deliberate misstatement of honour strength and/or suit length. Expressly permitted under Law 73E but forbidden contrary to that law by Acol club tourneys.

Psyche (pron. sahy-kee): The human soul, spirit or mind (derived, personification thereof, beloved of Eros, Greek myth).
Masterminding (pron. mPosted ImagesPosted ImagetPosted Imager-mPosted ImagendPosted Imageing) tr. v. - Any bid made by bridge player with which partner disagrees.

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#3 User is offline   PhilKing 

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Posted 2012-December-12, 08:16

I've no idea what the problem is, but I guess the answer is "run the jack".

If West covers with the queen, consider ducking, but at that stage I would probably ask what contract I was in, what my hand is, and what the bidding was.
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#4 User is offline   benlessard 

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Posted 2012-December-12, 12:11

Aim for the best average of tricks.

Side question does having the 876 change anything ?
From Psych "I mean, Gus and I never see eye-to-eye on work stuff.
For instance, he doesn't like being used as a human shield when we're being shot at.
I happen to think it's a very noble way to meet one's maker, especially for a guy like him.
Bottom line is we never let that difference of opinion interfere with anything."
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#5 User is offline   SteveMoe 

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Posted 2012-December-12, 15:30

wdp - duplicate
Be the partner you want to play with.
Trust demands integrity, balance and collaboration.
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Unit 124
Steve Moese
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#6 User is offline   SteveMoe 

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Posted 2012-December-12, 15:35

Suit Play says the following (unadjusted for open spaces):
Line A: Small to K (follow-ups depend on what falls)
Line B: Small to 8 (follow ups depend on what falls)
..........A...........B
4.......3.39%.......3.39%
3......62.17%......58.78%
2......95.22%.....100.00%
E.......2.6078......2.6217 Tricks

MP best is B.

If we don't have the 876 then we must have the 765 - K72 - J6543.
Line A low from both hands E=2.4978
Line B low to K E= 2.4696
so A is Best
There is a Line C that is worse - you can check it out.

Yes the spots have a bigger impact on the expected yield (E) than the choice between the best lines for each card set!

Suggest you go to Suit Play and get yourself a copy. Best analytics program I've seen.
Be the partner you want to play with.
Trust demands integrity, balance and collaboration.
District 11
Unit 124
Steve Moese
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#7 User is offline   PhilKing 

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Posted 2012-December-12, 18:39

View PostSteveMoe, on 2012-December-12, 15:35, said:

There is a Line C that is worse - you can check it out.



Lead the jack?

I wasn't serious lol, but if East is likely to be short we pin stiff T or 9 and West may cover erroneously (in a vacuum it loses to stiff A,Q,T or 9 in West).

And as for line B, we are only playing the 8 if the 5 appears. And that is only because, on simulation world, the suit could be 5-0.

Context is everything.
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#8 User is offline   SteveMoe 

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Posted 2012-December-12, 19:33

None of the 3 lines involves running the J.

Line A leads low toward dummy and ducking round 1 when LHO plays low. Then low toward the K.
Line C leads low similarly, but repeats the low/duck play at trick 2 (ostensibly playing for Ax with RHO).
Be the partner you want to play with.
Trust demands integrity, balance and collaboration.
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#9 User is offline   benlessard 

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Posted 2012-December-13, 12:50

I agree with suitplay :) In short

Ducking and low to K is slightly better at mp than low to K and low to J because

QT9x--A
+
Qx--AT9

are slightly more frequent than

xx-AQx

However if you hold 8+7 you can cover a LHO 9 or 10 at trick 1 because you can finesse against the other 9 or 10 on the way back.

Looking at the numbers i see the difference is a lot smaller than I would have tought. Also if you need 3 tricks low to K and low to J is best.
From Psych "I mean, Gus and I never see eye-to-eye on work stuff.
For instance, he doesn't like being used as a human shield when we're being shot at.
I happen to think it's a very noble way to meet one's maker, especially for a guy like him.
Bottom line is we never let that difference of opinion interfere with anything."
0

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