Dean Posted September 3, 2007 Report Share Posted September 3, 2007 Hi Does anyone have nay smart ideas for how to handle extreme shapes during symmetric relay auctions? We used to jump a round of bidding when showing controls to show this hand type but this becamse confusing very quickly. For the one suiters i.e 8+ suits we can show them as 7+ and a void or 7+ and a singleton and treatign say 7+321 as 7331 for DCB's purposes but is there a better way? ThanksDean Quote Link to comment Share on other sites More sharing options...
rbforster Posted September 3, 2007 Report Share Posted September 3, 2007 I'm interested too. Right now there are a lot of "holes" in the (non-symmetric) relay structure I use. Bids higher than 2♠ are undefined for example, currently out of laziness and lack of a clearly good idea. Very high bids should be used for very specific hands, maybe something like 8221 or 8311 and a certain range of controls. The kludge for our current method consists of showing a 7 card suit and accurate shortness, either 7330 when we've got 8320 for example, or 7321 when we have 8221. We can't show 2 shortnessness though, except by lying and "inventing" a second suit which seems wrong (ie calling 8311 or 9211 something like 7411). After that if we like our hand in context and if partner signs off at game (thinking we've got 7321), we might make a simple raise - i.e. 1♣...(showing 7♠321)...4♠ (signoff) - 5♠. Quote Link to comment Share on other sites More sharing options...
Free Posted September 3, 2007 Report Share Posted September 3, 2007 Personally I wouldn't bother about these extreme hands. Most of them can be described as similar holdings (try not to lie about singletons and voids), for example an 8320 can easily be described as 7330. Usually opps intervene when you have an extreme hand anyway, so relays will be off most of the time. The most extreme hand I've ever had playing a relay system (during several years) was AKQJTxxxx-xx-xx-void. Partner started with 1♣, opps were silent (damned for once). This time I didn't have a good way to tell my hand, because the auction started:1♣ - 1♥1♠ - 2♦2♥ - ...2♦ showed a singlesuiter with 6+♠. Since we show shortnesses from high to low, I would have to bid my shape immediately. The best description however is 7330, which is bid by 3NT (not forcing!). I could 'zoom' by bidding 4♣ or higher, but that would show at least 3 more AKQ-points, which I don't have (and could bring me in very serious trouble, like partner bidding 7NT)! I just blasted 7♠, heard partner laugh at the other side of the screen, but we made the slam when ♣A was outside, while partner had ♦AK and ♥AK. This is the ONLY time that I had a real problem in more than 4 years time, so reserving some space for these extremely rare hands is a pure waste. Frequency vs usefulness must be in balance, so I wouldn't make my 'every day' relay schemes any worse for a 'once in 4 years'-hand. Quote Link to comment Share on other sites More sharing options...
rbforster Posted September 4, 2007 Report Share Posted September 4, 2007 I just blasted 7♠ ...reserving some space for these extremely rare hands is a pure waste. Frequency vs usefulness must be in balance, so I wouldn't make my 'every day' relay schemes any worse for a 'once in 4 years'-hand.Well apparently you didnt have a meaning for a 7♠ blast, so I guess it wasn't hurting your other bidding much :). I would hazard most strong club systems haven't bothered to define very high jump bids, so if nothing else filling in the gaps with rare meanings couldn't hurt (although admittedly it won't show up very often). More generally, with extreme single suiters, it might be worth turning captaincy over to responder to ask for aces and such. If you're sure you know what suit is trump (since you've got 8+ decent ones), it might be worth having a bid or bids where responder can ask for aces, then kings, maybe exclusion in case he has a void, etc. Depending on your preferences, this could happen before or after a first round transfer to the long suit. With such a distributional hand, it might be worth trying to shut out possible preemption by 4th hand by having the bidding start 1♣-3NT* or whatever you want your unusual asking bid to be. Quote Link to comment Share on other sites More sharing options...
mikeh Posted September 4, 2007 Report Share Posted September 4, 2007 I have never played symmetric relay (so why am I posting? :) ) but I have played a fairly complete relay method. I echo the earlier advice about not worrying about 8 card suits.. treat it as a 7 card suit. Otherwise, you are simply getting too high and consuming your own bidding space. If this inaccuracy is costly, console yourself with the knowledge that the rest of the field/the opps are no better off than you are... no system handles freaks well, and I am willing to bet that no system will ever be invented that does: there is simply not enough bidding space. Treat 8320 as 7330, and hope partner doesn't insist on playing in your 2 card suit as trump, opposite his 5 cards... :) Quote Link to comment Share on other sites More sharing options...
MarceldB Posted September 5, 2007 Report Share Posted September 5, 2007 ... no system handles freaks well, and I am willing to bet that no system will ever be invented that does: there is simply not enough bidding space. I'm sorry to disappoint you ;) As an extension of the Delta singleton system/scheme I can treat the 8-12carder as well, including a min or a max within the pointrange. F.e. the hand Free gave: ▪ Pass=13+2♥= 6-11p. singl./void ♣ and a 4441 or 5?440, OR 5-10p. and a 822=1 or 922=0 with a max or 10 11=1 with a min., 10 21=0 with a min, or finally a 11 1-1=0 with a max▪2NT= relay3♣= 4441 min or a 5=4=4=0 min/max, or 5-10p. and a 8=2=2=1 or 9=2=2=0 with a max or 10=111 min., 10=21=0 with a min, or finally a 11=1=1=0 with a max▪3♦= relay4♦= 9=2=2=0 and 9-10p.▪4♥= Slam asking bid♠5♠= AKQJ♠, no J♥ (loose Jacks do not count namely)▪7♠ or if you prefer this spiral scan method I use:▪4♥= control points (A,K only)4NT= 3 CP▪5♣= scan5♦= non or AK♠▪5♥= Queen♠?6♣= yes + J♠, no J♥7♠ In the framework of a freakhand the 4♦ bid gives the exact distribution + the HCP with a margin of 1 point only, so still well treatable in my opinion. Don't forget that Relayer did not break the relaysequence.If a relay break with f.e. 3♥ after 2♥, RR still can give his exact distributionwith his 8+ carder ♦, ♥, or ♠, and on a safe level. Moreover with the same bids as in the relay sequence. For more info: Deltex scheme Quote Link to comment Share on other sites More sharing options...
helene_t Posted September 5, 2007 Report Share Posted September 5, 2007 In deWijs/Muller's "Tarzan" Precision (which is basically Wei with 2♣=6+ and 1♥ with 5/5 majors, i.e. very similar to the original SR), the openings are allocated such that all shapes without an 8-card and without 11 cards in the two longer suit can be resolved below 3NT sparing one step of bidding space* which (I think) is used for control count. Presumably, the wilder hands will have to bypass 3NT but even then I don't think they can be resolved excactly. I would not bother abot it, the wilder your hand the bigger the odds that opps will mess up your relays anyway. The problem only applies to the 1♠ and 2♣ openings. The 1♥ opening has plenty of steps left if you use 1♠ as the initial relay. The same would be true for 1♦ if they used 1♥ (or 1♠) as the initial relay, but they actually use 1NT so maybe they can't resolve the wild 1♦ hands. *If this applies to the 2♣-opening as well is not clear to me. Rob Helle wrote a series about the system in IMP. Some hands with a six-card clubs would have to open something else (e.g. always 1♦ with 4-6 minors) in order to meet the 1-step-left-after-shape requirement, but whether they actually do so I don't know. Quote Link to comment Share on other sites More sharing options...
hrothgar Posted September 5, 2007 Report Share Posted September 5, 2007 In deWijs/Muller's "Tarzan" Precision (which is basically Wei with 2♣=6+ and 1♥ with 5/5 majors, i.e. very similar to the original SR), the openings are allocated such that all shapes without an 8-card and without 11 cards in the two longer suit can be resolved below 3NT sparing one step of bidding space* which (I think) is used for control count. Ick... I have more than a passing familiarity with Symmetric Relay. In theory, you could reallocate some bidding space and allow some of the extreme shapes to be specifically resolved. In practice, the major impact will be displacing your auction termination structures much higher. Somethings got to go (and it is going to be that nice 3♥ control ask that we all love so much). I can't recall more than a handfull of times where I had the opportunity to resolve an 8+ card suit. I agree with earlier comments to (essentially) ignore the problem and consider this as a cost of doing business Quote Link to comment Share on other sites More sharing options...
Free Posted September 5, 2007 Report Share Posted September 5, 2007 no system handles freaks well, and I am willing to bet that no system will ever be invented that does: there is simply not enough bidding space. Original MOSCITO-relays handle ALL shapes, but they consume more bidding space than symmetric on most hands. (frequency * consumed bidding space) is as good as optimal for symmetric relay, which is never the case for relay schemes that can handle freaks. Although the freaks are out of the symmetric relays, I still consider it the best possible scheme for most hands. Quote Link to comment Share on other sites More sharing options...
gwnn Posted September 5, 2007 Report Share Posted September 5, 2007 that deltex thingie is totally parallel with bridge principles. no 13-000??? :angry: Quote Link to comment Share on other sites More sharing options...
keylime Posted September 5, 2007 Report Share Posted September 5, 2007 In Ultra, we do not worry about any 8 card suit holdings - the maximum we have is a seven card holding which is high up the response schedule when it happens. We primarily focus on the 5431 and 55 shapes when we show an unbalanced hand. Quote Link to comment Share on other sites More sharing options...
rbforster Posted September 5, 2007 Report Share Posted September 5, 2007 In theory, you could reallocate some bidding space and allow some of the extreme shapes to be specifically resolved. In practice, the major impact will be displacing your auction termination structures much higher. Somethings got to go (and it is going to be that nice 3♥ control ask that we all love so much).I understand the whole (frequency * level) issue where you trade off the level of the bid at which you resolve exact shape against the probability of such shapes showing up. That said, I don't think the costs to including extreme shapes would be very much, or rather, that they come at the expense of only-slightly-less-extreme shapes which weren't very likely either. For example from symmetric relay (from here), your 1-suiter table resolves like this 2S high shortage2NT middle shortage3C equal shortage (7222 or 6322)3D low shortage, zoom (5332)3H low shortage, 63313S low shortage, 73213NT low shortage, 7330 Now a specific 7330 is only a little more common than a specific 8221 (by 4:3 or so), so it's not entirely unreasonable to continue the single-suiter table like this: 3N low shortage, 73304C low shortage, 82214D low shortage, 83204H low shortage, 9310, ... What does this cost you? Typically after using a shape relay (symmetric or otherwise) to resolve exact shape, relayer will have the option of relaying again to ask about strength (controls, points, keycards, etc). Using the "zoom" principle, where you would start answering strength if you hit the last shape in the table, before our single suiter table really looked like this: 3S low shortage, 73213N low shortage, 7330, and minimum strength4C low shortage, 7330, first step of extra strength4D low shortage, 7330, second step of extra strength ... Somethings got to go (and it is going to be that nice 3♥ control ask that we all love so much).So adding extra shapes will make it a little harder to resolve the strength of the 7330 hands (since you can't zoom), at the expense of being able to show more extreme shapes. This is a much more minor cost I think than Richard suggests - it's not like somehow our balanced hand relays lose their 3♥ strength ask since they finish higher than 3♦. Of course at some point you'll run into the issue of resolving shapes too high. When you haven't promised enough values to make more than game, so you don't want your minimum 8221 hand pushing past 4♠ for example. But that aside, I don't see why everyone's so enamored of getting a little extra edge in their 7330 auctions but don't care about their 8221's. Quote Link to comment Share on other sites More sharing options...
joshs Posted September 5, 2007 Report Share Posted September 5, 2007 In theory, you could reallocate some bidding space and allow some of the extreme shapes to be specifically resolved. In practice, the major impact will be displacing your auction termination structures much higher. Somethings got to go (and it is going to be that nice 3♥ control ask that we all love so much).I understand the whole (frequency * level) issue where you trade off the level of the bid at which you resolve exact shape against the probability of such shapes showing up. That said, I don't think the costs to including extreme shapes would be very much, or rather, that they come at the expense of only-slightly-less-extreme shapes which weren't very likely either. For example from symmetric relay (from here), your 1-suiter table resolves like this 2S high shortage2NT middle shortage3C equal shortage (7222 or 6322)3D low shortage, zoom (5332)3H low shortage, 63313S low shortage, 73213NT low shortage, 7330 Now a specific 7330 is only a little more common than a specific 8221 (by 4:3 or so), so it's not entirely unreasonable to continue the single-suiter table like this: 3N low shortage, 73304C low shortage, 82214D low shortage, 83204H low shortage, 9310, ... What does this cost you? Typically after using a shape relay (symmetric or otherwise) to resolve exact shape, relayer will have the option of relaying again to ask about strength (controls, points, keycards, etc). Using the "zoom" principle, where you would start answering strength if you hit the last shape in the table, before our single suiter table really looked like this: 3S low shortage, 73213N low shortage, 7330, and minimum strength4C low shortage, 7330, first step of extra strength4D low shortage, 7330, second step of extra strength ... Somethings got to go (and it is going to be that nice 3♥ control ask that we all love so much).So adding extra shapes will make it a little harder to resolve the strength of the 7330 hands (since you can't zoom), at the expense of being able to show more extreme shapes. This is a much more minor cost I think than Richard suggests - it's not like somehow our balanced hand relays lose their 3♥ strength ask since they finish higher than 3♦. Of course at some point you'll run into the issue of resolving shapes too high. When you haven't promised enough values to make more than game, so you don't want your minimum 8221 hand pushing past 4♠ for example. But that aside, I don't see why everyone's so enamored of getting a little extra edge in their 7330 auctions but don't care about their 8221's. Losing the runons is not the only problem. You also lose the ability to play 4M in your 8 or 9 card suit which you would have gotten to do if you had merely showed 7 cards. For instance in your scheme with 3820, the shape is resolved at the 4D level. You can no longer play 4H since the next step is a relay. You can decide to agree that 4S is the relay instead whicha. is an accident wiating to happen, since this auction occurs only once per yearb. This doesn't let you play 4S.... In general, shape resolution above 4C is a very bad idea (as is 3N showing shape but not strength). In any case here are my estimates:a. Being able to resolve unusual shpaes helps you once every 3 yearsb. Losing space due to the runons hurts you 5 times/year In general, when you have extreme shape, pretend you have an extra queen, find the closest approximation of your shape, and bid accordingly. (For instance, my min positive range is normally 9-12, but with 5-5 or 64- it becomes 8-11, with an 8 card suit, or a very good looking 7420 its more like 7-10. I think Kxx AKxxxxxx - xx is a "maximum" so I would show 3712, and if asked, show a max. Note: In my version of symmetric relay you can't even distinguish 3712 from 2713....) Summary: Bridge is about getting the common hands right. No one claims they are experts of how to bid wierd hands well, so don't worry about them.... And when you have an 9 card suit, how often are the opps silent???? Quote Link to comment Share on other sites More sharing options...
awm Posted September 5, 2007 Report Share Posted September 5, 2007 One thing that helps in Sam and my methods is the option of reversing the relays. We play a multi-way 1♦ response to 1♣ that's any of: (1) A very strong hand, making other direct responses limited to 6 AKQ points.(2) A balanced game force.(3) A very weak hand.(4) A game forcing hand that prefers to relay rather than describe. This last option takes care of a lot of the 8-card suits etc. Quote Link to comment Share on other sites More sharing options...
Cascade Posted September 5, 2007 Report Share Posted September 5, 2007 Curiously in my symmetric relay partnership we are going in the other direction. We have recently moved 7411 into extreme shape and do not resolve this shape exactly. Quote Link to comment Share on other sites More sharing options...
hrothgar Posted September 5, 2007 Report Share Posted September 5, 2007 In theory, you could reallocate some bidding space and allow some of the extreme shapes to be specifically resolved. In practice, the major impact will be displacing your auction termination structures much higher. Somethings got to go (and it is going to be that nice 3♥ control ask that we all love so much).I understand the whole (frequency * level) issue where you trade off the level of the bid at which you resolve exact shape against the probability of such shapes showing up. That said, I don't think the costs to including extreme shapes would be very much, or rather, that they come at the expense of only-slightly-less-extreme shapes which weren't very likely either. For example from symmetric relay (from here), your 1-suiter table resolves like this 2S high shortage2NT middle shortage3C equal shortage (7222 or 6322)3D low shortage, zoom (5332)3H low shortage, 63313S low shortage, 73213NT low shortage, 7330 Now a specific 7330 is only a little more common than a specific 8221 (by 4:3 or so), so it's not entirely unreasonable to continue the single-suiter table like this: 3N low shortage, 73304C low shortage, 82214D low shortage, 83204H low shortage, 9310, ... What does this cost you? Given how few people here play much relay, its surprising to see this topic generate much in the way of discussion. Regardless, here are a few points that folks might want to consider: I just ran a quick simulation. It suggested that the relative frequency of an 7330 pattern compared to an 8220 was skewed much more than 4:3. Does anyone have a copy of the Encyclopdia of Bridge handy (Mine is packed away from the latest move) First, here's a frequency distribution for the 7330 patterns as well as a few of the "extreme" single suited patterns. (Please note, I only generated a million hands so these should be viewed as ballpark figures) Shape = 7330, Frequency = .002088Shape = 8221, Frequency = .000158Shape = 8320 / 8230, Frequency = .000082Shape = 9310 / 9130, Frequency = .0000068Shape = 9220, Frequency = .000005 We're talking about VERY small numbers here. Second: When you're looking at some of the hand patterns, you know the long suit and the short suit. You don't have any information about the residuals. This could be important, especially if you are dealing with 9310 patterns. Third: If folks really wanted to, I suppose that you could zoom with extreme shape and single suited hand patterns. (I wouldn't want to do so with two suiters where you might reasonably want to play in one of two strains). If you were going to do this, you'd probably want to set a rule that the this zoom automatically sets responder's long suit as trump. In turn, this would let you use standard auction termination rules. (This neatly sidesteps AWM's issues with memroy loads with respect to 4♥ / 4♠ bids and the like) Quote Link to comment Share on other sites More sharing options...
Cascade Posted September 6, 2007 Report Share Posted September 6, 2007 I just ran a quick simulation. It suggested that the relative frequency of an 7330 pattern compared to an 8220 was skewed much more than 4:3. Does anyone have a copy of the Encyclopdia of Bridge handy (Mine is packed away from the latest move) First, here's a frequency distribution for the 7330 patterns as well as a few of the "extreme" single suited patterns. (Please note, I only generated a million hands so these should be viewed as ballpark figures) Shape = 7330, Frequency = .002088Shape = 8221, Frequency = .000158Shape = 8320 / 8230, Frequency = .000082Shape = 9310 / 9130, Frequency = .0000068Shape = 9220, Frequency = .000005 We're talking about VERY small numbers here. 7330 0.0026524523870978221 0.0019235760079988320 0.0010850941583589310 0.0001004716813299220 0.000082204102906 Quote Link to comment Share on other sites More sharing options...
MarceldB Posted September 6, 2007 Report Share Posted September 6, 2007 that deltex thingie is totally parallel with bridge principles. no 13-000??? :PI understand your understatement, but I hate it to preëmpt my partner, even with a 12-100 I still build it up. W/non [hv=n=sktxxhdktxxcjxxxx&w=shkqjtxxxxxxxxdcx&e=saqj9xhdaqjxckqtx&s=sxxxxhadxxxxxcaxx]399|300|1♣ - 1♦1NT - 2♣2♥ - 2♠2NT - 3♣4♠ - 5♥Pass[/hv] 1♣ = 8-12 any s/void (with a 12 100 then HCP do not count)▪ 1♦ = relay1NT = s/v ♦ , L= Major or any 5/5▪2♣ = relay2♥ = L= ♥ + 4 card else▪2♠ = relay2NT= 4c ♣▪3♣ = relay (or do a positive break with 3♦ = stopper asking ♠ + ♣)in both cases: 4♠ = 0=12=0=1 and a minimum = 11 tricks5♥ = final bid If East is the dealer:Pass - 1NT= 6-11 s/v ♦ , L= Major or 5/5 etc. and the same resultTurn the minor holding in East and you can claim 6♥ Happy with a 5♥ opening? Or can somebody ask for Ace ♥ and/or ♣ ?And how to handle this hand if East opens 1♠ ?===Such occasions for above mentioned are rare and specially in case of no interference, but in the framework of the system it was no problem at all to build-in those extreme 1-suiter shapes without disturbing the regular shapes AND without getting too high, so I have the opinion: why not. Regards,Marcel Quote Link to comment Share on other sites More sharing options...
helene_t Posted September 6, 2007 Report Share Posted September 6, 2007 Given how few people here play much relay, its surprising to see this topic generate much in the way of discussion. I get your point, but as an applied mathematician I am specialized in forming opinions about issues that I don't know much about, so I'm excused. :) Quote Link to comment Share on other sites More sharing options...
gwnn Posted September 6, 2007 Report Share Posted September 6, 2007 A 12-1-0-0 comes up every 8578 years if you play 100 hands a day. But I think I messed up the calculations somewhere, it really has to be less often. I don't mean this to criticize your system mate, don't get me wrong. Quote Link to comment Share on other sites More sharing options...
MarceldB Posted September 6, 2007 Report Share Posted September 6, 2007 A 12-1-0-0 comes up every 8578 years if you play 100 hands a day. But I think I messed up the calculations somewhere, it really has to be less often. I don't mean this to criticize your system mate, don't get me wrong.No, not at all.The example I gave is of course a curiosity and will never happen. But if...then it can be handled, without any problem. As you will understand the seldom 9+c suiters handling is an extention of the 8-carders treatment. Freebids were namely available on a safe level. ALL the 8221, 8311 and 8320's, in spite of the 8c-suit and the singl./void, are always known with the 4♣ bid, that means:- the exact distribution is known- min or max within the pointrange (pointranges can be: 7-11, 5-10 or 12-15) 4♦ = End Signal (exception: 8c=♦ ànd a minimum)Rest = Slam investigation and defines the trumpsuit In the framework of this thread, this 4♣ bid answers to the description of a symmetrical bid, with the advantage not disturbing f.e. a 7330 and it's handling in the original symmetric relay system as I have seen. Quote Link to comment Share on other sites More sharing options...
Gerben42 Posted September 6, 2007 Report Share Posted September 6, 2007 I DO play relays sometimes but never had much of a problem. I try to convey my shortnesses rather than lengths, i.e. sell 8221 as 7(32)1 with singleton in my singleton suit. Quote Link to comment Share on other sites More sharing options...
mycroft Posted September 6, 2007 Report Share Posted September 6, 2007 Of course, it's (frequency * level * cost)...I have played a system that has 4 bids for exact specific shapes lower than three of opener's suit (by a passed hand) because level is low, cost of not doing it is minimal (no real meaning for the call otherwise), and the cost of not handling them is high (only hands that can make game opposite a minimum). I am assuming from the comments posted (I play an asking-bid style, rather than a relay style) that the number of times not being able to differentiate between 7 and 8 was the difference between 5 and 6 or 6 and 7 isn't high enough for the cost of the misdescription, 13+ IMPs, to matter (except if you lose by 2, of course, but we can all find 2 IMPs that weren't system problems). Michael. Quote Link to comment Share on other sites More sharing options...
Impact Posted September 11, 2007 Report Share Posted September 11, 2007 Not sure whether it was traditional symmetric or an adaptation:- respond as to Extreme shape: If relayer signed off w/o range/BCC, Step 1=EXTREME8311 treated 6322 9211 7321 BUT show "2" as sing 9310 73308221 5332 if good suit (o/w 7321) 8320 6331 if good suit (o/w 7330) 6610 55217510 54318410 64217600 65117411 5422 which has worked well for us over 20+ years...on the rare occasion you hold the hand AND get a chance for an unobstructed auction. regards Quote Link to comment Share on other sites More sharing options...
akhare Posted September 11, 2007 Report Share Posted September 11, 2007 I echo the comments made by Free, Richard, Josh et all -- it simply doesn't make sense to dedicate any bids to 8+ card suits. For one thing, with such extreme distribution, it's unlikely that you will be able to contest a relay auction unmolested (read interference). Also, I think that the recent trend is not to bother to with resolving the "32" in the 7321 shapes. In practice, I don't think that I ever have had the chance to relay out (or response to a relay) a 8+ card suit in the thousands of hands I have played over the past few years. Quote Link to comment Share on other sites More sharing options...
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