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Hand Evaluation Rosenkranz Two-Way Game Tries

#1 User is offline   42 

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Posted 2011-October-13, 03:18

The following is a hand where my partner and I have completely different opinions on hand evaluation, as it seems.
System: Polish Club modified
Important team match
Dealer: South
N/S vulnarable

I hope that viewing the complete hand right now does not influence your objectivity ;)



Bidding so far:
South opens 1 (pass) 2 (pass)

Problem A: South has to decide whether to show via Rosenkranz Two-Way Game Tries
a) a short suit trial in
b) a long suit trial in
c) a long suit trial in
or
d) to jump directly to 4
--> Question: Which is the best action and why? (Without knowing all hands as you do...)

Problem B: assume that South decided to bid
i) --> a) = a short suit trial in
ii) --> b) = a long suit trial in
--> Question: How should North evaluate his hand in each of both cases? Why?

C: Do "loser count" or "distribution points" affect your bidding?

D1: Do you prefer "Long Suit Trials" or "Help Suit Trials"? D2: Would LST or HST lead to a different result from North in this hand?

TIA!
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#2 User is offline   gwnn 

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Posted 2011-October-13, 03:25

I would bid 4 as south because I think I can make 4. Game tries are overrated anyway.
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#3 User is offline   the hog 

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Posted 2011-October-13, 03:33

This is hard. I would not bid 4S as I regard that as a butcher's bid. Try making 4S opposite a normal raise simple raise if pd has some H values. I would probably make a gt in Ds or better a short suit try in H if that was available. Pd would likely refuse.
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#4 User is offline   Fluffy 

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Posted 2011-October-13, 03:35

If you play short suit then you evidently use them when you have shortness and honnors on both on the other suits help, not on this hand because this is a 4 drive for me, 2, 2, 1 losers and partner is expected to cover from 2 to 3.

So IMO 4 is best, then trial in with short hearts and then trial in a long suit (not sure wich one is best).

d) for first answer

I wrote this without even looking at north's hand. Now I will look at it for the next question:


IMO north is close between directly acepting game opposite both heart shortness and long diamonds or bidding something in the middle (like a 3 last train if avaible). 4-2 side suit fits are very good whnen having 4 trumps to ruff twice, so I think opposite lond diamonds I'll drive to game. Opposite heart shortness if you can show last train I'd do last train, but if unavaible I'd bid game.


Loser trick count affects my view for south's hand, not for norths.


North has a better hand opposite a bid that shows about 3.8 average diamonds (LST) than opposite 3.4 average diamonds (HST). I don't like HST much but haven't tried them enough to compare.
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#5 User is offline   Hanoi5 

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Posted 2011-October-13, 04:22

The problem here is probably the system. If North had been able to show the 4th card in support of spades South would gladly go to game. Not knowing about it bidding 4 is still a possibility but a LST in diamonds is also a possibility. I think North should accept the try, having 4 good spades. I might be biased by looking at all four hands so maybe it is better to post these probleam showing only one hand (and a couple of days or weeks later the other) or just the two hands involved, the bidding and ATB.

View Postwyman, on 2012-May-04, 09:48, said:

Also, he rates to not have a heart void when he leads the 3.


View Postrbforster, on 2012-May-20, 21:04, said:

Besides playing for fun, most people also like to play bridge to win


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#6 User is offline   helene_t 

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Posted 2011-October-13, 04:37

Maybe LST in is better when North has three trumps while an LST in is better when North has four trumps. Because the main disadvantage of the LST in is that North will not cooperate when he has a singleton. Even a doubleton is useful when North has four trumps.

If we were playing ultra-thin raises so that South has an invite only then I would prefer the short suit trial. However it is not ideal since North will not devaluate A as much as we would like him to.

Anyway, I just blast 4. South has four losers using modified LST so it is a clear game bid.
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#7 User is offline   Trinidad 

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Posted 2011-October-13, 05:36

I would jump to game, since I have play opposite a "3333" distribution with 4 queens. (I am aware that partner is supposed to have 13 cards and that I hold the Q myself.)
If I would invite, I would certainly show the short hearts, rather than a long suit in a minor. After all, the heart shortness is the main characteristic of the hand. In that case, North should accept. He has very little wasted in hearts (only a jack) and a four card trump suit. North should realise that he could have held the same hand with the majors reversed. That makes it clear to accept.

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#8 User is offline   paulg 

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Posted 2011-October-13, 05:44

If you believe the hand is worth an invitation, then I think it is clear that you should show short hearts in your system - otherwise I suggest getting rid of the short-suit tries as you'll never use them.
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#9 User is offline   jmcw 

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Posted 2011-October-13, 06:46

If P values are in the minors and/or trumps then game prospects are improved. OTOH if his values are in , game success will not be improved.
Making a short try seems best since partner will likely reject when he has wasted values in and accept when his values are elsewhere.

However, as some have noted, a jump to game seems best, the opps will have less info and you will likely have a decent shot to make.

As North, I would reject HS,LS tries in minors, accept short in .
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#10 User is online   Cyberyeti 

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Posted 2011-October-13, 06:48

Will make the short suit try in first.

Jxxx, xxxx, Kx, KJx seems to offer decent play for a slam so I'm certainly bidding at least 4.

86xx, KJxx, Qx, xxx wouldn't be great, but if trumps are 2-2 or there's a stiff honour, a lot else has to be wrong for me not to make this.
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#11 User is offline   hotShot 

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Posted 2011-October-13, 06:55

I bid 4, it will make more often than not and I intend not to help opps to find a better lead or defense with more information about our hands.
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Posted 2011-October-13, 07:00

Thx all so far!
Last train is not available...

How I decided:
I gave it a long thought before bidding LST in . My 'internal' arguments for that:
- although I felt :rolleyes: that 4 will make, I had only A109xx in and could imagine some bad surprises on the N - Hand like Qxx QJx.. Jxx ... How will I reach the table for finessing, for example? So I refused the immediate 4 bid
- a void instead of a singleton in So even with (a maximum AND) wasted honnors in but some help in I will make game. For me the key-suit was - and so went declaring

Partner (N) bid 3 and this was the final contract, made 6... The dummy was a complete surprise for me!

I on North's place would have accepted anyway because of:
- 4 trumps with the Mariage (S invited without those honnors, so must have an interesting hand)
- doubleton in the long suit --> ruffs available because of the 4 trumps
- known 9 cards, so the "problem" does not lie in or , the strength of the S-hand must be outside from trumps and diamonds (perhaps longer s or something good in or , then the Js probably aren't wasted)

Partners arguments against mine and for his sign-off:
- 9 losers (Me: I hate this, IMO losers are overrated :P )
- N is a minimum hand (Me: I don't think so)
- wasted Js in and
- "You must clearly bid SST in to learn whether N has wasted honnors/points or not!" (Me: Who ever said that a SST has always priority?? If so, it is senseless to be able to chose between SST and LST, no?)

Where should I give in and accept that I was wrong?
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#13 User is offline   rbforster 

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Posted 2011-October-13, 07:00

Short suit try in hearts for me. It would help to know what your normal 2S raise promises to know whether North's relatively weak hand would still accept or not in context. I would lean towards accepting the heart try, since there's little wasted in hearts and North has an extra trump.
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#14 User is offline   gwnn 

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Posted 2011-October-13, 07:03

Your partner has a clear accept. He has a little help (a small doubleton) and 4 good spades.
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#15 User is online   Cyberyeti 

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Posted 2011-October-13, 08:23

I really dislike the 3 bid, in my view I want partner to value diamond honours, Qxx is not a great holding, xxxx may be a good holding (what do you want partner to do with Kxxx, xxxx, xxxx, K for example). I'd much rather have KJ9x for the game try where any honour is good. If I bid 3, if partner has the K and not a bust, will he not bid 3 here ?

I think if you're going to make a game try, (I'm bidding game anyway), short suit in is best, followed by long suit in where an honour is truly useful followed by long suit in .
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#16 User is offline   helene_t 

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Posted 2011-October-13, 08:24

What holdings are good opposite a long suit trial?

Opposite KJxx any honour is good. Opposite xxxx shortness is good. Opposite Axxx a king or shortness is good.

I don't like a style in which a trial could be any of those. I like it to show the king and/or the queen so that an honour would be helpful and shortness not.
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#17 User is offline   pooltuna 

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Posted 2011-October-13, 08:29

View Postthe hog, on 2011-October-13, 03:33, said:

This is hard. I would not bid 4S as I regard that as a butcher's bid. Try making 4S opposite a normal raise simple raise if pd has some H values. I would probably make a gt in Ds or better a short suit try in H if that was available. Pd would likely refuse.


so the new acronym for a cutter of meat is "gwnn" :) But I do agree that a check on partner's wastage is called for.
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#18 User is offline   Phil 

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Posted 2011-October-13, 08:56

View Posthelene_t, on 2011-October-13, 08:24, said:

What holdings are good opposite a long suit trial?

Opposite KJxx any honour is good. Opposite xxxx shortness is good. Opposite Axxx a king or shortness is good.

I don't like a style in which a trial could be any of those. I like it to show the king and/or the queen so that an honour would be helpful and shortness not.


Agree. Opposite a LS trial, partner should upgrade K's / Q's and shortness in the LS. xxxx is not an appropriate holding for a long suit trial.

4 over 2 is an overbid and we are NV. Why throw away 5 IMPs? Besides, 5440 shapes are overrated.

I like 3. If partner accepts, great. If partner counter accepts with 3, thats positive news too. If partner bids 3, that is terrible, and I would signoff and hope I make 3.
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#19 User is offline   blackshoe 

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Posted 2011-October-13, 11:32

First off, Rosenkranz Game Tries are actually three way: 3 is a two way bid, either a short suit try in clubs, or a "power" try. Responder then has a way to accept one but not the other (and vice versa). On this hand you could make a power try, which basically looks for good trumps, which responder has. In fact, he would accept either try, so should just bid 4 over 3.

If you aren't playing the full system (only two way tries) I would make a short suit try in hearts, which responder should also accept.

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#20 User is offline   han 

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Posted 2011-October-14, 06:05

Seems like an obvious 4S to me.
Please note: I am interested in boring, bog standard, 2/1.

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