BBO Discussion Forums: ACBL GCC - 3NT As "To Play" - BBO Discussion Forums

Jump to content

  • 10 Pages +
  • « First
  • 8
  • 9
  • 10
  • You cannot start a new topic
  • You cannot reply to this topic

ACBL GCC - 3NT As "To Play"

#181 User is offline   hrothgar 

  • PipPipPipPipPipPipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 15,495
  • Joined: 2003-February-13
  • Gender:Male
  • Location:Natick, MA
  • Interests:Travel
    Cooking
    Brewing
    Hiking

Posted 2007-March-01, 22:24

officeglen, on Mar 2 2007, 05:46 AM, said:


>So the answer to this is to offer up to the opponents only a narrow spec and
>that you want me to claim I psyched when I was not psyching?
>
>Well no for me.

>Let me know if you try out this "claimed pysche" idea for your bid
>descriptions and how it works for you.

Here's the thing Glen: I wouldn't run into this problem because I don't go to tournaments and play methods that I don't understand and can't explain to the opponents.

Before I play anything like this in real competitions, I study the method. I run lots of simulations and make sure that I have practical experience. On those occasions when I do employ a mixed strategy, I try to make sure that I have a rough appropximation of the probability density function that I am working with. Furthermore, I normally try to create a rule set that I can use to implement the mixed strategy:

Case in point: When I am playing MOSCITO, I employ a mixed strategy following our 1M openings. If responder has a weak hand suitable for an immiedate preemptive raise to 4M, he compares his Club length to his Diamond length. If the suit length is equal, he bids 3NT. If the suit length is unequal, he bids 4M. (This rule set means that I will bid 3N approximately 20% of the time and bid 4M ~80% of the time)

I think that you need to invest some time and effort into disclosure rather than hiding behind the words "to play".

>If my opponents ask after I alert and say "to play, wild variety, please ask pls",
>any description I give will always be of such to cover the actual hand I have, plus
>covering the history my partner knows.

This is a really interesting claim, especially in light of earlier comments you made such as

Quote

6) I'm pleased to see eagerness to find out more about this approach, but we really don't have much more details on it, except when somebody would be kind enough to do a bridge browser report.


Quote

At this time, we don't even know what are all the types and when they might or might not occur - for example on the hand I opened against Peter, I might not have opened it 3NT the day before, and I might not open it 3NT tomorrow, but I might open it 3NT the day after that. Besides describing it as "a variety of hands, that may be based on a source of tricks or sources of tricks, and may or may not have stoppers or length in all suits" (too long for a white box) what would you suggest, and does this longer explain really help anyways?


Quote

2) No. The only thing in the notes is "to play, rarely pulled".

Alderaan delenda est
0

#182 User is offline   glen 

  • PipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 1,637
  • Joined: 2003-May-11
  • Gender:Male
  • Location:Ottawa, Canada
  • Interests:Military history, WW II wargames

Posted 2007-March-01, 22:32

You are mixing our notes (very short), details of agreement (see short notes), and description to the opponents. In an early post I gave the white box text I was doing at the time (now since modified thanks to feedback in this thread), and later showed how I tried to describe the bid on Jan 21, to show an example.

As to your 1M-3NT example sequence, if you are playing in a BBO event, what do you type into the short white box when you make the 3NT bid, what do you explain immediately, and what to you fully describe when they ask?
'I hit my peak at seven' Taylor Swift
0

#183 User is offline   glen 

  • PipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 1,637
  • Joined: 2003-May-11
  • Gender:Male
  • Location:Ottawa, Canada
  • Interests:Military history, WW II wargames

Posted 2007-March-01, 22:40

One reason I ask is this:

hrothgar, on Feb 26 2007, 09:24 AM, said:

I use quite similar methods myself.  Most notably, playing MOSCITO (or for that matter Precision) if partner opens 1M a 3N advance is (essentially) "to play".  The 3N advance shows any hand where responder believes that 3NT is likely to be the best contract.

My concern is not with the opening, but rather the disclosure surrounding it.  For example, my MOSCITO convention card defines the auction

1 - (P) - 3N as

"To Play":  Typically shows offensive strength for 3NT.  Occasionally a preemptive Spade raise.  (Rarely both minors with Spade tolerance)

If you are going to use these types of methods, you have an obligation to be able to accurately describe what your bids show.

'I hit my peak at seven' Taylor Swift
0

#184 User is offline   glen 

  • PipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 1,637
  • Joined: 2003-May-11
  • Gender:Male
  • Location:Ottawa, Canada
  • Interests:Military history, WW II wargames

Posted 2007-March-01, 22:41

but now we are told:

hrothgar, on Mar 1 2007, 11:24 PM, said:

If responder has a weak hand suitable for an immiedate preemptive raise to 4M, he compares his Club length to his Diamond length.  If the suit length is equal, he  bids 3NT.  If the suit length is unequal, he bids 4M.  (This rule set means that I will bid 3N approximately 20% of the time and bid 4M ~80% of the time)

I think that you need to invest some time and effort into disclosure rather than hiding behind the words "to play".

'I hit my peak at seven' Taylor Swift
0

#185 User is offline   AlexOgan 

  • PipPip
  • Group: Members
  • Posts: 42
  • Joined: 2006-June-09

Posted 2007-March-01, 22:53

The two posts you just quoted aren't in disagreement at all.

He explained that when he has a preemptive raise to 4M, he sometimes bids 3NT. He also wrote that his explanation for 1M-(P)-3NT includes "occasionally a preemptive [Major] raise".

What are you complaining about? That he didn't specify that the preemptive major raises included in 3NT have equal minor suit length?
0

#186 User is offline   glen 

  • PipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 1,637
  • Joined: 2003-May-11
  • Gender:Male
  • Location:Ottawa, Canada
  • Interests:Military history, WW II wargames

Posted 2007-March-01, 22:54

That is correct - clearly not full disclosure - when holding a major preempt, as to knowledge of equal/unequal minor suit length (both for the 3NT and 4M bids- could make a big difference in the play), and to the percentage that this will occur, which both of the partners know, but perhaps not disclosed to the opponents. Of course he hasn't even begun to describe what hands he considers appropriate for a major preempt to either 4M or 3NT, given most play five card majors, and his style is different.
'I hit my peak at seven' Taylor Swift
0

#187 User is offline   hrothgar 

  • PipPipPipPipPipPipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 15,495
  • Joined: 2003-February-13
  • Gender:Male
  • Location:Natick, MA
  • Interests:Travel
    Cooking
    Brewing
    Hiking

Posted 2007-March-02, 06:07

officeglen, on Mar 2 2007, 07:32 AM, said:

You are mixing our notes (very short), details of agreement (see short notes), and description to the opponents. In an early post I gave the white box text I was doing at the time (now since modified thanks to feedback in this thread), and later showed how I tried to describe the bid on Jan 21, to show an example.

As to your 1M-3NT example sequence, if you are playing in a BBO event, what do you type into the short white box when you make the 3NT bid, what do you explain immediately, and what to you fully describe when they ask?

Drop the obsession with "the little white box".

There are a lot better systems available for disclosure. The FD system and OKScript both allow users to send (fairly) large blocks of text to their opponents.
Alderaan delenda est
0

#188 User is offline   hrothgar 

  • PipPipPipPipPipPipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 15,495
  • Joined: 2003-February-13
  • Gender:Male
  • Location:Natick, MA
  • Interests:Travel
    Cooking
    Brewing
    Hiking

Posted 2007-March-02, 07:26

officeglen, on Mar 2 2007, 07:54 AM, said:

That is correct - clearly not full disclosure - when holding a major preempt, as to knowledge of equal/unequal minor suit length (both for the 3NT and 4M bids- could make a big difference in the play), and to the percentage that this will occur, which both of the partners know, but perhaps not disclosed to the opponents.  Of course he hasn't even begun to describe what hands he considers appropriate for a major preempt to either 4M or 3NT, given most play five card majors, and his style is different.

Right now, we're veering into a (fairly) esoteric part of the the Laws. I believe that what I am doing is above board. I have discussed these methods on the Bridge laws mailing list in the past. I know that a number of good players make use of similar methods. However, I will also note that some fairly prominent officials disagree with my interpetation regarding the propieties. (Most notably, Grattan Endicott is in the dissenting camp)

For the moment, lets focus on the the 1M - 3N example that I raised originally.

I argue that my partnership agreement consists of the following:

1. The fact that my 3NT bid is either

a strong hand with such and such characteristics OR
a preemptive Spade raise with a single suited hand OR
a preemptive Spade raise with 4+ / 4+ in Clubs and Diamonds

2. The fact that

20% of all hands suitable for preemptive raise to 4S will bid 3NT and
~10% of all hands with 3+ Spades and (4+/4+) in the minors will bid 3NT

3. The fact that

my 3NT bid shows a strong hand (roughly) 95% of the time and a weak hand the remaining 5%

This information should be made available to partner and to the opponents.

However, so long as I keep the specific key that I am using hidden from partner, this information does not constitute partnership agreement and does not need to be disclosed. There is nothing "special" about the fact that the hand promises (club length) == (diamond length). I would be just as happy chosing any one of a variety of other keys that would produce the same effect. Obviously, I could chose to compare Club length with length in the other major. Alternatively, the following key would work just as well:

If I hold the deuce of trump and the three of trump, I will bid 3NT. Otherwise, I will bid 4M.

This key will increase the chance that I bid 3NT with a preemptive spade raise by (roughly) 1%, however, this is hardly an exact science. (In retrospect, I probably should switch over to using some combination of cards in the trump suit since its much easier to change keys on a whim)
Alderaan delenda est
0

#189 User is offline   Gerben42 

  • PipPipPipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 5,577
  • Joined: 2005-March-01
  • Gender:Male
  • Location:Erlangen, Germany
  • Interests:Astronomy, Mathematics
    Nuclear power

Posted 2007-March-02, 08:02

Quote

What I am suggesting is that people learn to play without depending on artificiality.


This is a great comment which I have been supporting since I started teaching bridge. The usual methods of teaching bridge tend to start with:

LESSON 1: 1NT shows 16 to 18 points and 4333, 4432 or 5m332.

which is completely backward. If you want to prove to yourself that Bridge can be played without system try the following experiment: Replace the 7 with a joker that is simply the highest card of the led suit and THEN play bridge.

Now you can throw point count, key card asking and all fancy stuff in the garbage bin and start from scratch. Yet you can still play Bridge!

It is no secret that I like artificial systems - but one can really say that I like "alternative opening bid structures". After that I usually try to reach a situation where natural bidding is used as quickly as possible. Because that's what's easiest.

There is no "fix". Relay bidding set a long structure of defined bids. Sure, anyone can memorize the relays, press a button and watch the wheels go round. But it's no use if you cannot use the information properly, and know when to ask and when not. Which, by the way, is much more complicated than natural bidding...
Two wrongs don't make a right, but three lefts do!
My Bridge Systems Page

BC Kultcamp Rieneck
0

#190 User is offline   LH2650 

  • PipPipPipPip
  • Group: Full Members
  • Posts: 242
  • Joined: 2004-September-29

Posted 2007-March-02, 08:52

inquiry, on Feb 27 2007, 08:28 PM, said:

You may think the ACBL language, which has to do with alerts actually (see not only the GCC which you quote, but also their document on alerts, where this sentence is lifted verbatim) forbids this 3NT opening bid or makes it illegal. You would be wrong.

The international rules of bridge 1) defines a conventional bid, and 2) expressely deals with what a sponsoring organization (ike the ACBL) can and can not restrict.

Rage against the machine if you must, but if you open 1N with a singleton, a competent ACBL director will investigate, and if he determines that you have an agreement allowing that, he will consider an adjusted score. The ACBL tells him to do so.

The legal and regulatory principles appear to be the same for a 3N opening.
0

#191 User is offline   hrothgar 

  • PipPipPipPipPipPipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 15,495
  • Joined: 2003-February-13
  • Gender:Male
  • Location:Natick, MA
  • Interests:Travel
    Cooking
    Brewing
    Hiking

Posted 2007-March-02, 09:14

LH2650, on Mar 2 2007, 05:52 PM, said:

inquiry, on Feb 27 2007, 08:28 PM, said:

You may think the ACBL language, which has to do with alerts actually (see not only the GCC which you quote, but also their document on alerts, where this sentence is lifted verbatim) forbids this 3NT opening bid or makes it illegal. You would be wrong.

The international rules of bridge 1) defines a conventional bid, and 2) expressely deals with what a sponsoring organization (ike the ACBL) can and can not restrict.


Rage against the machine if you must, but if you open 1N with a singleton, a competent ACBL director will investigate, and if he determines that you have an agreement allowing that, he will consider an adjusted score. The ACBL tells him to do so.

Bobby Goldman used to post regularly on the OKB mailing list. He was (directly) asked about opening 1NT with a singleton on few occasions. Here's his position (as best that I recall)

1. Bobby felt that there were certain 5-4-3-1 hand patterns that presented a problem for his methods. A 1=4=5=3 pattern that was too weak for a reverse but too strong for a 1NT rebid after a 1 opening and a 1 advance was the prototypical example.

2. Bobby felt that opening these hands 1NT was the lesser of several evils. The 1NT opening was a systemic bid and a matter of partnership agreement.

3. While opening 1NT with a singleton was systemic, it was also very rare. Most of the time, there was a better bid available.

If we look at the ACBL's regulations in this area, we find the following

"A notrump opening or overcall if not unbalanced (generally, no singleton or void and only one or two doubletons) is considered natural."

I'd argue that the word "generally" is extremely important. The issue is not the existence of an agreement, but rather the frequency with which the 1NT opening will contain a singleton.

(Don't ask me to define the what percentage is too high)
Alderaan delenda est
0

#192 User is offline   inquiry 

  • PipPipPipPipPipPipPipPipPipPip
  • Group: Admin
  • Posts: 14,566
  • Joined: 2003-February-13
  • Gender:Male
  • Location:Amelia Island, FL
  • Interests:Bridge, what else?

Posted 2007-March-02, 09:32

LH2650, on Mar 2 2007, 09:52 AM, said:

inquiry, on Feb 27 2007, 08:28 PM, said:

You may think the ACBL language, which has to do with alerts actually (see not only the GCC which you quote, but also their document on alerts, where this sentence is lifted verbatim) forbids this 3NT opening bid or makes it illegal. You would be wrong.

The international rules of bridge 1) defines a conventional bid, and 2) expressely deals with what a sponsoring organization (ike the ACBL) can and can not restrict.

Rage against the machine if you must, but if you open 1N with a singleton, a competent ACBL director will investigate, and if he determines that you have an agreement allowing that, he will consider an adjusted score. The ACBL tells him to do so.

The legal and regulatory principles appear to be the same for a 3N opening.

First off, I think you are wrong, or at least the wrong conclusion can be reached by people reading your post (there is some truth to what you say, it is a frequency issue). Let's examine the facts.

The GCC states “A notrump opening or overcall is natural if not unbalanced
(generally, no singleton or void and only one or two doubletons).”

This means a notrump opening or overcall can be natural EVEN WITH a singleton or void. Heck, in a post from yesteday, severeal people postulated overcalling 1 with 3NT when holding void, 8xxxx AK AKQJxx. And everybody and their dog will rebid 3NT on hands like this. void AJx Axx AKQJTxx you open 1C and partner bids 1S.

The same GCC says that an opening bid of a minor is natural "if it shows three or more cards in that suit."

Does that mean that you can not open 1 on 4432 hands with a doubleton club? No it does not. What it does mean is that you must alert your 1 bid as showing as few as 2 cards.

Likewise, you are relatively free to open 1NT on a singleton with certain exceptions. If you open the very occassional hand with a singleton 1NT (the frequency I have seen thrown about is 1%) without any problem. That means no alert, no worry. I think there might be some fine points to this, of course, like you can not have a check back looking for a singleton.

Should you find yourself just overpowered and open 1NT more frequently with a singleton, then of course you will have to start alerting the bid (as this woould make the bid legally not "natural"). However, after the alert ("occassionally may include a singleton") I think the bidding remains normal. I could be wrong on this, becaause while I open 1NT with the occassional singleton, it does not appraoch 1% of the 1NT hands. The reason being I open a lot of hands 1NT (my range is 14-16 and I open 1NT even with five card majors). I guess should the ACBL rule that such an alert means your 1NT is conventional (rather than a treatment), they could outlaw the "bid" as they have the right to regulate conventions. But that is just a subset of the argument here about the 3NT opening bid.

What would be, I think, clearly a convention (rather than a treatment) is if you choose, for instance, to open all 1444 hands 1NT or all 1354 hands with nine cards in the minors 1NT. But the occassional random hand with a singleton is clearly not illegal, immoral, unethical, or disallowed by the ACBL. It can EVEN BE considered natural if the frequency of occurance is low enough... (YES NATURAL).. .see the quoted text above.
--Ben--

#193 User is offline   blackshoe 

  • PipPipPipPipPipPipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 17,707
  • Joined: 2006-April-17
  • Gender:Male
  • Location:Rochester, NY

Posted 2007-March-02, 15:10

fred, on Mar 1 2007, 07:10 PM, said:

I was not trying to suggest putting the genie back in the bottle. I know that is simply not going to happen and, even if it could happen, I am far from convinced that this would be good for the game.

But I believe there is something wrong when we see good players who like to play systems based on things like Moscito and Forcing Pass that seem terrified by the prospect of having to play against Glen's natural 3NT opening (or who think that Glen's playing this non-convention makes him "one of them").

I think there is a good chance that this sad state of affairs is largely a function of the way the game is taught nowadays. New players start learning conventions almost immediately. Teachers try to convince them that magic formulas like The Law and the Rule of X (where popular values of X these days are 15 and 20) will absolve them of having to develop bidding judgment. Intermediate players drool over the concept of learning a new variety of Bergen raises, but are incapable of counting a hand, have never learned to play simple suit combinations, and are totally lost if they have to figure out what a bid means in an auction they have never heard before. Young talented players get so involved in trying to emulate the bidding of Meckwell or the Italians (which in truth they cannot possibly play effectively) or in creating their own brilliant systems (which in truth are almost always theoretically unsound and too complicated for them to remember) that they invariably never learn the basics and invariably become little more than cannon fodder for the players who win all the time. Some experts and many near-experts are not comfortable with a bid unless they are able to formally define what it *shows*. The concept of defining a bid in terms of what it *means* is just too scary to contemplate.

The way most bridge players use artificiality these days is similar to the way that many people use pharmaceutical products - they think that no matter what problem they have there is always some pill that will solve it. It doesn't take long for them to develop a dependency on these pills and, if you take their pills away, they become too afraid to function in the real world.

I am not suggesting eliminating artificiality. What I am suggesting is that people learn to play without depending on artificiality.

Good points all. Glad to see we're on the same wavelength regarding the genie. :P

It occurred to me that perhaps beginning courses should emphasize hand evaluation more, and natural bidding more (ie, few, if any, conventions). However, the experienced teachers with whom I've spoken seem to be of the opinion that beginning players aren't capable of understanding much at all. They need things like the rule of 20 and the LOTT, because they don't know hand evaluation, and either aren't capable of learning it or don't want to spend time on it. I dunno how much of that is true, and how much is teacher bias, but I suspect even beginning players are capable of learning more than they're given credit for. :P
--------------------
As for tv, screw it. You aren't missing anything. -- Ken Berg
I have come to realise it is futile to expect or hope a regular club game will be run in accordance with the laws. -- Jillybean
0

#194 User is offline   helene_t 

  • The Abbess
  • PipPipPipPipPipPipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 17,204
  • Joined: 2004-April-22
  • Gender:Female
  • Location:Copenhagen, Denmark
  • Interests:History, languages

Posted 2012-August-30, 05:41

This happened early in my bridge career some ten years ago:

the director had already warned us not to start a new board as time was running out but since the director was looking the other way we agreed with opponents to play the last board anyway but do it very quickly.

I picked up my hand, without sorting it I saw I had a decent amount of points so I pulled the 3NT card without using the stop card, and all three other players passed immediately. LHO asked my p if it was gambling. P said that "given the circumstances" it is probably just to play. Opps didn't have any problems with that.
The world would be such a happy place, if only everyone played Acol :) --- TramTicket
0

#195 User is offline   daveharty 

  • PipPipPipPipPip
  • Group: Full Members
  • Posts: 694
  • Joined: 2010-October-21
  • Gender:Male
  • Location:Ann Arbor, MI
  • Interests:Bridge, juggling, disc sports, Jane Austen, writing, cosmology, and Mexican food

Posted 2012-August-30, 17:51

I think I might have to add a "Necro of the Year" category to the 2012 Posty Awards.
Revised Bridge Personality: 44 43 33 44

Dianne, I'm holding in my hand a small box of chocolate bunnies... --Agent Dale Cooper
1

#196 User is offline   dake50 

  • PipPipPipPipPipPip
  • Group: Advanced Members
  • Posts: 2,211
  • Joined: 2006-April-22

Posted 2012-August-30, 18:39

Playing limited 1M, our 1M-4M is 'to play'.
May be weak preempt, may be poor controls near opener,
may be wild guess against few tricks verses their 4H.
I'm not releived of my duty to avoid a private
understanding by saying "to play".
0

  • 10 Pages +
  • « First
  • 8
  • 9
  • 10
  • You cannot start a new topic
  • You cannot reply to this topic

13 User(s) are reading this topic
0 members, 13 guests, 0 anonymous users