dake50 Posted July 15, 2009 Report Share Posted July 15, 2009 Recently my partner has perverted our 1NT:10-12 bal with three openings with a single in one 28-board session. Must I now alert opponents that I know her tendency to vary the balanced agreement? Or was this just her deviations bunched into one session? Aside. If this is our de facto agreement: any 10-13 is this GCC legal? Mid-chart/Super Chart/ Disallowed? Quote Link to comment Share on other sites More sharing options...
hrothgar Posted July 15, 2009 Report Share Posted July 15, 2009 Insufficient data to reach a meaningful conclusion Please provide the set of all hands where 1. Partner had the option to open a mini NT2. Partner held 9-13 HCP, balanced/semi balanced Along with the choice of opening bids. A couple hundred hands should be sufficient Quote Link to comment Share on other sites More sharing options...
jdonn Posted July 15, 2009 Report Share Posted July 15, 2009 Clearly you must alert them. 3 times in one session? I have opened 1NT with a singleton in live bridge about 3 times in the last 5 years, and there are probably those who would think I should alert it. Quote Link to comment Share on other sites More sharing options...
peachy Posted July 15, 2009 Report Share Posted July 15, 2009 Definitely alert. Also, change your system card to show this change. I don't think it is illegal in ACBL or elsewhere, but if you next begin frequent upgrading of 9HCP hands into it you will run into trouble eventually, not because your system allows frequent singletons but because under 10HCP NT openings are illegal. Once that crosses the frequency limits... Quote Link to comment Share on other sites More sharing options...
Stephen Tu Posted July 15, 2009 Report Share Posted July 15, 2009 ACBL position:http://www.acbl.org/learn/noTrumpwithaSingleton.html For a non-forcing NT ostensibly natural opening, supposedly at most 1% of your opening NTs can have singletons, and you can't have methods to expose the stiff. If your partner is doing this often enough that an alert is required, presumably this is a disallowed convention in the view of the ACBL. I think the rule is just stupid, as I do many ACBL rules. Quote Link to comment Share on other sites More sharing options...
awm Posted July 15, 2009 Report Share Posted July 15, 2009 I don't see a problem with this particular ACBL rule. Assuming you agree that sanctioning organizations should be able to regulate legal agreements at all (I know some on these forums disagree, but they are a distinct if vocal minority), there need to be rules regarding frequency like this. If an individual always bids a certain way, and his partner knows it, then it becomes a de facto agreement. Here it looks like partner will essentially always open 1NT on hands including a singleton. The frequency (three boards in one session!) is so high that it doesn't make sense to describe this as a "deviation from agreements" any more. This is how the person bids. And since ACBL regulations prohibit an agreement to open 1NT on unbalanced hands (except if 1NT is a strong forcing bid) this is an illegal agreement. The directors should have a chat with partner and explain that he has to stop bidding this way so often or boards will be adjusted (and/or procedural penalties assessed). Quote Link to comment Share on other sites More sharing options...
aguahombre Posted July 15, 2009 Report Share Posted July 15, 2009 Here are some of the problems I see for those with a 10 HCP floor for 1NT: 1)There are more hands with 9 HCP than there are hands with 14 HCP, therefore more "judgement calls".2)There are more unbalanced hands in the 10-13 range than in higher ranges that feel notrumpish to you, or are hard to handle with a minor opening. With many more opportunities to deviate, hence establish a new implied agreement, come more problems. Depending upon your governing organization or the tolerance level of human directors, you then flirt with losing the ability to use conventions after notrump opening bids --among other complications. If you conclude that I am against using judgement or weak notrumps, that is not true. You should be able to use whatever you think works for you --am just stating what probably has already occurred to you. Quote Link to comment Share on other sites More sharing options...
ArtK78 Posted July 15, 2009 Report Share Posted July 15, 2009 I have been playing a 10-12 1NT opening for many years, and I have yet to see one hand on which I would want to open a 9 HCP 1NT or a 1NT opening with a singleton. Aside from annoying your opponents (and, potentially, tournament officials), you make life difficult for partner. By the way, this section of the Forum is titled "Non-Natural System Discussion." There is nothing "non-natural" about a 10-12 or a 10-13 1NT opening. But I digress. Quote Link to comment Share on other sites More sharing options...
Stephen Tu Posted July 15, 2009 Report Share Posted July 15, 2009 I don't see a problem with this particular ACBL rule. Well I do. I don't think they should be in the business of legislating what constitutes "good bridge". If people get good results from opening 1nt with small singletons, they ought to be able to do so IMO. It's a natural NF bid! Nor should they be prevented from getting the bad results. People should have the right to be crazy, as long as they disclose. I'd be fine if they made it legal, as long as partner alerts, and can provide an accurate description of what sort of hands opener would choose to open a stiff on. People ought to be dissuaded from doing so due to poor results, not because of arbitrary restrictions. Quote Link to comment Share on other sites More sharing options...
Cascade Posted July 15, 2009 Report Share Posted July 15, 2009 ACBL position:http://www.acbl.org/learn/noTrumpwithaSingleton.html For a non-forcing NT ostensibly natural opening, supposedly at most 1% of your opening NTs can have singletons, and you can't have methods to expose the stiff. If your partner is doing this often enough that an alert is required, presumably this is a disallowed convention in the view of the ACBL. I think the rule is just stupid, as I do many ACBL rules. When this has been discussed in the past it has become apparent that standard practice for at least some experts is to open 1NT with a singleton more often than that. Quote Link to comment Share on other sites More sharing options...
awm Posted July 15, 2009 Report Share Posted July 15, 2009 Well I do. I don't think they should be in the business of legislating what constitutes "good bridge". If people get good results from opening 1nt with small singletons, they ought to be able to do so IMO. It's a natural NF bid! Nor should they be prevented from getting the bad results. People should have the right to be crazy, as long as they disclose. Every argument you've made here would seem to apply equally well to a 2♥ opening showing a weak two in either major. Some people think this method is "good bridge" and as long as they disclose, why shouldn't they have the right to be crazy? The bid's even "natural" in the sense that partner will often pass it and it expresses a willingness to play 2♥ opposite a (semi)-balanced hand without much in the way of values. Of course, if you agree that 2♥ showing a weak two in either major should be allowed in all events and that ACBL (or WBF for that matter) shouldn't be in the business of legislating whether this convention constitutes "good bridge" then you're entitled to your opinion -- but you should recognize that this opinion differs from that of the vast majority of bridge players. Quote Link to comment Share on other sites More sharing options...
bill1157 Posted July 15, 2009 Report Share Posted July 15, 2009 what if you only opened 1NT when the singleton was a high honor (Q or better) and knocked out the 10 pt hands (subtract a point for the singleton honor) would that be sufficiently rare to work under the ACBL rules? Bill Quote Link to comment Share on other sites More sharing options...
TimG Posted July 15, 2009 Report Share Posted July 15, 2009 Well I do. I don't think they should be in the business of legislating what constitutes "good bridge". If people get good results from opening 1nt with small singletons, they ought to be able to do so IMO. It's a natural NF bid! Nor should they be prevented from getting the bad results. People should have the right to be crazy, as long as they disclose. Every argument you've made here would seem to apply equally well to a 2♥ opening showing a weak two in either major. Some people think this method is "good bridge" and as long as they disclose, why shouldn't they have the right to be crazy? The bid's even "natural" in the sense that partner will often pass it and it expresses a willingness to play 2♥ opposite a (semi)-balanced hand without much in the way of values. I think it is a stretch to call a 2♥ opening showing a weak two-bid in either major natural. Nor do I think "willingness to play" has anything to do with natural. I might open 2♦ to show a 4=4=1=4 hand and am perfectly willing to play in 2♦ if partner has a bunch of diamonds, but that doesn't mean the bid is natural. At least not in my opinion. Isn't the "offer to play" or "willingness to play" a holdover from the old Laws definition of "conventional"? Quote Link to comment Share on other sites More sharing options...
awm Posted July 15, 2009 Report Share Posted July 15, 2009 I think it is a stretch to call a 2♥ opening showing a weak two-bid in either major natural. Nor do I think "willingness to play" has anything to do with natural. Again, similar arguments apply to the 1NT call. What makes opening 1NT with a singleton "natural"? A natural notrump bid is supposed to be a balanced hand, which would not include a singleton. Certainly the 1NT opening conveys a "willingness to play" in 1NT, but like you said, this doesn't have anything to do with natural. Quote Link to comment Share on other sites More sharing options...
Cascade Posted July 15, 2009 Report Share Posted July 15, 2009 I think it is a stretch to call a 2♥ opening showing a weak two-bid in either major natural. Nor do I think "willingness to play" has anything to do with natural. Again, similar arguments apply to the 1NT call. What makes opening 1NT with a singleton "natural"? A natural notrump bid is supposed to be a balanced hand, which would not include a singleton. Certainly the 1NT opening conveys a "willingness to play" in 1NT, but like you said, this doesn't have anything to do with natural. Why does 1NT need to be balanced to be natural? What is 'balanced'? Just 4333? 4333 and 4432? 4333 and 4432 and 5332? Or some other shapes? There has been a trend for less and less balanced hands to open 1NT over time. Culbertson advocated at one time "The hand should have 4-3-3-3 distribution." Bidding and Play in Duplicate Contract Bridge. Others have required that all suits be stopped. Now it is common for hands with a small doubleton to be opened 1NT. Some might even open 1NT from time to time with two small doubletons. Others are happy to open 1NT with a stiff honour. And some with a small singleton. This is just a progression. None is more natural than any other. They all fit in a context of an overall system which is either effective or not. Quote Link to comment Share on other sites More sharing options...
awm Posted July 15, 2009 Report Share Posted July 15, 2009 Similarly to what Cascade said... It used to be that a 1♣ opening showed at least four clubs back in the days of Culbertson and Goren and old-fashioned Acol. Since the advent of five-card major systems, more and more of us have been opening 1♣ with only three cards, and this is now quite common in the context of "natural" bidding. In the last decade or so, it has become increasingly popular for a 1♣ opening to promise only two clubs such that the 1♦ opening can promise an unbalanced hand. Some people even take this so far as to open 1♣ on singleton so that 1♦ can promise five, and this approach is no longer extremely unusual even amongst otherwise "natural" bidders. So obviously 1♣ opening which could be 4441 (i.e. any hand without five cards in any other suit) is just a natural bid right? Shouldn't be regulated, shouldn't be alerted? Yet Cascade himself is one of the chief opponents of this position. Why is his position so different about 1NT openings? Any standard which we define for "natural" bids will draw some arbitrary-seeming lines. And at some point some players will want to cross those lines. But as long as we believe that some regulation of methods is permissible, it will be necessary to have some definitions for what is allowed and to require that players who frequently violate those definitions stop doing so. In the case of 1NT openings, the "line" is "no singletons or voids." Quote Link to comment Share on other sites More sharing options...
Cascade Posted July 15, 2009 Report Share Posted July 15, 2009 Similarly to what Cascade said... It used to be that a 1♣ opening showed at least four clubs back in the days of Culbertson and Goren and old-fashioned Acol. Since the advent of five-card major systems, more and more of us have been opening 1♣ with only three cards, and this is now quite common in the context of "natural" bidding. In the last decade or so, it has become increasingly popular for a 1♣ opening to promise only two clubs such that the 1♦ opening can promise an unbalanced hand. Some people even take this so far as to open 1♣ on singleton so that 1♦ can promise five, and this approach is no longer extremely unusual even amongst otherwise "natural" bidders. So obviously 1♣ opening which could be 4441 (i.e. any hand without five cards in any other suit) is just a natural bid right? Shouldn't be regulated, shouldn't be alerted? Yet Cascade himself is one of the chief opponents of this position. Why is his position so different about 1NT openings? Any standard which we define for "natural" bids will draw some arbitrary-seeming lines. And at some point some players will want to cross those lines. But as long as we believe that some regulation of methods is permissible, it will be necessary to have some definitions for what is allowed and to require that players who frequently violate those definitions stop doing so. In the case of 1NT openings, the "line" is "no singletons or voids." I think you don't understand my position on the subject at all. Quote Link to comment Share on other sites More sharing options...
TimG Posted July 16, 2009 Report Share Posted July 16, 2009 I think it is a stretch to call a 2♥ opening showing a weak two-bid in either major natural. Nor do I think "willingness to play" has anything to do with natural. Again, similar arguments apply to the 1NT call. What makes opening 1NT with a singleton "natural"? A natural notrump bid is supposed to be a balanced hand, which would not include a singleton. Certainly the 1NT opening conveys a "willingness to play" in 1NT, but like you said, this doesn't have anything to do with natural. Agreed, I wasn't addressing the naturalness of a 1N opening bid (with or without a singleton), just the 2♥ opening showing either spades or hearts. To Cascade: the ACBL GCC contains this: "A no trump opening or overcall is natural if not unbalanced (generally, no singleton or void and only one or two doubletons)." I do not wish to debate whether this is a good definition or not, but it seems to me that ACBL is free to define natural how they wish and to establish regulations based upon whatever definition they choose. Don't the new Laws provide for regulation of methods without regard to whether they are natural or conventional? Quote Link to comment Share on other sites More sharing options...
TimG Posted July 16, 2009 Report Share Posted July 16, 2009 Since the advent of five-card major systems, more and more of us have been opening 1♣ with only three cards, and this is now quite common in the context of "natural" bidding. I've recently been reading some Bridge Worlds from 1953 in which there is a debate about whether the Roth-Stone system should be allowed in ACBL events. A comment (I forget from whom) in that debate said that a five-card major approach was in fashion early in the history of contract bridge, then fell out of favor at some point and then back into favor (thanks in large part to Roth-Stone). It's funny how sometimes the "new" methods are really the "old" methods. Quote Link to comment Share on other sites More sharing options...
Cascade Posted July 16, 2009 Report Share Posted July 16, 2009 I think it is a stretch to call a 2♥ opening showing a weak two-bid in either major natural. Nor do I think "willingness to play" has anything to do with natural. Again, similar arguments apply to the 1NT call. What makes opening 1NT with a singleton "natural"? A natural notrump bid is supposed to be a balanced hand, which would not include a singleton. Certainly the 1NT opening conveys a "willingness to play" in 1NT, but like you said, this doesn't have anything to do with natural. Agreed, I wasn't addressing the naturalness of a 1N opening bid (with or without a singleton), just the 2♥ opening showing either spades or hearts. To Cascade: the ACBL GCC contains this: "A no trump opening or overcall is natural if not unbalanced (generally, no singleton or void and only one or two doubletons)." I do not wish to debate whether this is a good definition or not, but it seems to me that ACBL is free to define natural how they wish and to establish regulations based upon whatever definition they choose. Don't the new Laws provide for regulation of methods without regard to whether they are natural or conventional? The laws state: "B. Special Partnership Understandings1. (a) In its discretion the Regulating Authority may designate certainpartnership understandings as “special partnership understandings”. Aspecial partnership understanding is one whose meaning, in the opinion ofthe Regulating Authority, may not be readily understood and anticipated bya significant number of players in the tournament.(:rolleyes: Whether explicit or implicit an agreement between partners is apartnership understanding. A convention is included, unless the RegulatingAuthority decides otherwise, among the agreements and treatments thatconstitute special partnership understandings as is the case with any callthat has an artificial meaning.2. (a) The Regulating Authority is empowered without restriction to allow,disallow, or allow conditionally, any special partnership understanding. Itmay prescribe a System Card with or without supplementary sheets, for theprior listing of a partnership’s understandings, and regulate its use. TheRegulating Authority may prescribe alerting procedures and/or other methodsof disclosure of a partnership’s methods. It may vary the generalrequirement that the meaning of a call or play shall not alter by referenceto the member of the partnership by whom it is made (such a regulation mustnot restrict style and judgement, only method). ..." It is only Special Partnership Understandings that can be regulated. These include conventions unless designated otherwise and artificial bids. Otherwise they need to be designated as Special by the regulating authority and meet the conditions that they are 'not readily understood and anticipated. The fact that something is defined as natural or not has little or no direct bearing on whether or not it is a 'Special Partnership Understanding'. And therefore whether or not it can be regulated. An Artificial Call is defined as "Artificial call — is a bid, double, or redouble that conveys information(not being information taken for granted by players generally) other thanwillingness to play in the denomination named or last named; or a passwhich promises more than a specified amount of strength or if it promisesor denies values other than in the last suit named." So a 1NT opening that is primarily designed to show a willingness to play in no trumps (provided partner does not have distribution to suggest another denomination) does not appear to be artificial. 'Convention' is no longer definied in the laws but in the previous laws had a similar meaning to "Artificial call' with regard to No Trump openings since we cannot have length or strength in no trumps. Quote Link to comment Share on other sites More sharing options...
Cascade Posted July 16, 2009 Report Share Posted July 16, 2009 Similarly to what Cascade said... It used to be that a 1♣ opening showed at least four clubs back in the days of Culbertson and Goren and old-fashioned Acol. Since the advent of five-card major systems, more and more of us have been opening 1♣ with only three cards, and this is now quite common in the context of "natural" bidding. In the last decade or so, it has become increasingly popular for a 1♣ opening to promise only two clubs such that the 1♦ opening can promise an unbalanced hand. Some people even take this so far as to open 1♣ on singleton so that 1♦ can promise five, and this approach is no longer extremely unusual even amongst otherwise "natural" bidders. So obviously 1♣ opening which could be 4441 (i.e. any hand without five cards in any other suit) is just a natural bid right? Shouldn't be regulated, shouldn't be alerted? Yet Cascade himself is one of the chief opponents of this position. Why is his position so different about 1NT openings? Any standard which we define for "natural" bids will draw some arbitrary-seeming lines. And at some point some players will want to cross those lines. But as long as we believe that some regulation of methods is permissible, it will be necessary to have some definitions for what is allowed and to require that players who frequently violate those definitions stop doing so. In the case of 1NT openings, the "line" is "no singletons or voids." For what it is worth in the context of this discussion I think there is a significant difference in describing a bid in a suit where you open your shortest suit as 'natural' compared with a no trump opening in which the intention is to suggest no trumps as a denomination that will be played reasonably often. Quote Link to comment Share on other sites More sharing options...
Mbodell Posted July 16, 2009 Report Share Posted July 16, 2009 what if you only opened 1NT when the singleton was a high honor (Q or better) and knocked out the 10 pt hands (subtract a point for the singleton honor) would that be sufficiently rare to work under the ACBL rules? Bill Yes that would work. Although if you have some system to check for the stiff, you might run a foul of the ACBL rules. If you knock out 10 from 10-12 you are dealing with around 2/3 of the hands being good. If you require Q or higher you are dealing with 3/13 of the hands with stiffs (so this is around 2/13). But then 4441 are quite rare (1/33 total) compared to the other possible shapes (4333, 4432, 5332, 6322, and 5422 are around 20 times more likely). So that is 2/3*3/13*1/20 = 1/130. If you open all in range 5431 or 6331 1nt as well, you might well be getting too high (although if you changed it to just stiff K, not stiff Q or A, you might be back in business). Quote Link to comment Share on other sites More sharing options...
hrothgar Posted July 16, 2009 Report Share Posted July 16, 2009 what if you only opened 1NT when the singleton was a high honor (Q or better) and knocked out the 10 pt hands (subtract a point for the singleton honor) would that be sufficiently rare to work under the ACBL rules? Bill Yes that would work. Although if you have some system to check for the stiff, you might run a foul of the ACBL rules. If you knock out 10 from 10-12 you are dealing with around 2/3 of the hands being good. If you require Q or higher you are dealing with 3/13 of the hands with stiffs (so this is around 2/13). But then 4441 are quite rare (1/33 total) compared to the other possible shapes (4333, 4432, 5332, 6322, and 5422 are around 20 times more likely). So that is 2/3*3/13*1/20 = 1/130. If you open all in range 5431 or 6331 1nt as well, you might well be getting too high (although if you changed it to just stiff K, not stiff Q or A, you might be back in business). 5=4=3=1 is a very common shape 6=3=3=1 as well If I were playing a 10 -12 NT, I'd consider 1N emminently practical holding ♠ K♥ QT7♦ KJT3♣ KT932 Quote Link to comment Share on other sites More sharing options...
TimG Posted July 16, 2009 Report Share Posted July 16, 2009 "B. Special Partnership Understandings1. (a) In its discretion the Regulating Authority may designate certainpartnership understandings as “special partnership understandings”. Aspecial partnership understanding is one whose meaning, in the opinion ofthe Regulating Authority, may not be readily understood and anticipated bya significant number of players in the tournament. So, what ACBL needs to do in order to regulate a NT opening which may commonly be made with a singleton is to designate it as a special partnership understanding. Or, they could just make a blanket proclamation that calls that are not natural by their definition of natural are special partnership understandings. Quote Link to comment Share on other sites More sharing options...
rbforster Posted July 16, 2009 Report Share Posted July 16, 2009 Just to clarify a few common misunderstandings: I don't think it is illegal in ACBL or elsewhere, but if you next begin frequent upgrading of 9HCP hands into it you will run into trouble eventually, not because your system allows frequent singletons but because under 10HCP NT openings are illegal. Opening 1NT can be done with less than 10 HCP and a balanced hand (more on 'balanced' later). The relevant ACBL rules from the GCC are 1) 1 level openings (such as 1NT) can't be made systematically with less than 8 HCP, and2) conventional continuations (Stayman, transfers, etc) are not allowed if 1NT could have less than 10 HCP by agreement If you want to open 1NT with 8-9 (or 9-11 or 8-15, or whatever), you're free to do so as long as you use natural continuations. It's not unreasonable to play new suits at the 2 level are natural and weak, new suits at the 3 level are natural and forcing, and 2N is a (semi)balanced game force allowing opener to bid a 4 card suit. If you really cared, you could employ the definition of a 'natural' minor as only 3+ cards to play 'better minor stayman' or somesuch if you really wanted. I will also point out that the previous ACBL position on singletons may be outdated (I'll try to dig up the reference), as well as without basis in the actual ACBL charts: ACBL position:http://www.acbl.org/learn/noTrumpwithaSingleton.html For a non-forcing NT ostensibly natural opening, supposedly at most 1% of your opening NTs can have singletons, and you can't have methods to expose the stiff. I think the rule is just stupid, as I do many ACBL rules.For example, some contradictions in the ACBL's cited position include: 1) Unless you're opening most of your 4333 and 4432 hands something other than 1NT, even a system where you open 1N with any 4441 (or 4333, 4432, or 5332 shape) will not 'generally' have a singleton simply because the 4441 shapes are so rare. I think they represent about 4% of all those hand types IIRC. Certainly if you've got no singleton, void or two doubletons over 95% of the time, I think one would be hard pressed to argue your openings weren't 'generally balanced' even assuming one agrees with their definition of balanced. 2) These rulings are never applied to standard 2N openings with a singleton, since the poor ability of "standard" bidding systems to handle 20+ HCP semibalanced hands has made it expert standard to (mis?)describe these hands as balanced. A consistent approach would allow all similar hand shapes to these 'expert' semibalanced 2N openers to be allowed for 1N openings as well (but since when was the ACBL known for its consistency?). 3) There is no rule that forbids conventional methods to discover a singleton in the 1NT opener's hand (assuming 1NT shows <4 a point range and >9 HCP), although since they are such rare occurrences it might not make sense to bother with such a convention. The only relevant rule would be regulations disallowing psychic controls and psychic bids are 'gross distortions' which missing a single card in length (while still having the correct strength range) seems very unlikely to qualify. Quote Link to comment Share on other sites More sharing options...
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