TylerE Posted February 15, 2013 Report Share Posted February 15, 2013 This was a system I was introduced to by a partner of mine - I am unsure if it's a creation of his, or something he learned from someone else, but I quite like it and have had good results playing it. Bids are as follows. 1♠-1NT: Semi-forcing, never 3♠1♠-2♠: Normal 3 card raise1♠-2NT: Jacoby 1♠-3♣: 4 card raise, 6-121♠-3♣-3♦: Range ask1♠-3♣-3♦-3♠: Minimum1♠-3♣-3♦-Anything else: good 9-12, anything besides 4♠ shows a source of tricks. 3N suggests playing it there.1♠-3♦: 3 card limit1♠-3♠: Preemptive There are a number of advantages of this system over standard Bergen raises.... It allows you play 1N as only semi-forcing (Or I suppose, even non-forcing), if you wish.With a 4 card non-preemptive raise it hides responder's strength unless opener actually needs to knowAlways an immediate fit-showing bid with 3+ supportDisambiguates the auction 1M-1N(*)-2x-2M (Now shows exactly 2 card support) Quote Link to comment Share on other sites More sharing options...
Zelandakh Posted February 15, 2013 Report Share Posted February 15, 2013 I will once again give my major suit direct raise structure for you to compare with: 1M==2M = weak raise2M+1 = mini-splinter or strong splinter (any shortage)2M+2 = GF raise2M+3 = limit raise2M+4 = mixed raise3M = preemptive raise3M+1 = void splinter (any void)3M+2,+3,+4 = singleton splinter4M = preemptive There are many many threads around on this topic if you run a search. Quote Link to comment Share on other sites More sharing options...
Phil Posted February 15, 2013 Report Share Posted February 15, 2013 I think if you want to horse around here, its better to telescope all of your 4 card, non preemptive raises into 2♠ / 2N. There are some So Cal pairs that do this, and it seems to work OK. Of course, they also use 1M - 3x as a flower or mini-splinter, so I still question their intelligence. In essence: 1♠ - 2N - 3♠ (a hand that does not going anywhere unless partner is GF)1♠ - 2N - 3♣ (a hand that accepts opposite a limit raise but rejects a constructive raise, but I think this can be a club stiff and extras++). Anything else = normal Jacoby response and extras ++ Quote Link to comment Share on other sites More sharing options...
TylerE Posted February 15, 2013 Author Report Share Posted February 15, 2013 I'm not sure how I feel about collapsing it down that far. Seems like that's vulnerable to interface, esp. at Unfav. Quote Link to comment Share on other sites More sharing options...
jh51 Posted February 15, 2013 Report Share Posted February 15, 2013 I don't know if he invented it, but the method you describe is discussed in Dr. Neil Timm's book 2/1 Game Force A Modern Approach. He calls the 3♣/3♦ bids combined Bergen raises. 3 of the other major is an ambiguous splinter. The next step (3♠ or 3NT) asks for the short suit. Quote Link to comment Share on other sites More sharing options...
fromageGB Posted February 15, 2013 Report Share Posted February 15, 2013 1♠-3♣: 4 card raise, 6-121♠-3♣-3♦: Range askWith a 4 card non-preemptive raise it hides responder's strength unless opener actually needs to knowThis is a really huge range. Opener will always need to know, and there is no room to stop in 3M, so it is permanently hidden whether he wants to know or not. Quote Link to comment Share on other sites More sharing options...
TylerE Posted February 15, 2013 Author Report Share Posted February 15, 2013 Huh? Over 3♦ if responder has the 6-9 hand they bid 3♠, otherwise they bid something else. You can always stop in 3M over either 3♣ or 3♦. As for opener needing to know - suppose opener is on a 5332 16 count. That probably wants to be in game opposite any hand with 6-12 with 4 card support, but isn't interested in slam (unless perhaps partner has good side suit, which they will show show over 3♦). Quote Link to comment Share on other sites More sharing options...
Fluffy Posted February 15, 2013 Report Share Posted February 15, 2013 A better alternative to Bergeno Bergen 2♠ 6-103♠11-124♠13-16 This is better than bergen already :P 1 Quote Link to comment Share on other sites More sharing options...
jallerton Posted February 15, 2013 Report Share Posted February 15, 2013 This was a system I was introduced to by a partner of mine - I am unsure if it's a creation of his, or something he learned from someone else, but I quite like it and have had good results playing it. Bids are as follows. 1♠-1NT: Semi-forcing, never 3♠1♠-2♠: Normal 3 card raise1♠-2NT: Jacoby 1♠-3♣: 4 card raise, 6-121♠-3♣-3♦: Range ask1♠-3♣-3♦-3♠: Minimum1♠-3♣-3♦-Anything else: good 9-12, anything besides 4♠ shows a source of tricks. 3N suggests playing it there.1♠-3♦: 3 card limit1♠-3♠: Preemptive The main problem with this structure is that 3♣ covers such a wide range. Yes, opener can make an artificial game try in your structure to distinguish between 6-bad9 and good9-12, but that is all. If 1♠-3♣ shows a traditional limit raise, then Opener can still use 3♦ as an artificial game try, but now to distinguish (say) 9-10 from 11-12. Worse still, if 4th hand makes an overcall above 3M, Opener will have to guess as he does not have the luxury of a game try available as the partnership has not shown enough strength to play pass as forcing. There are a number of advantages of this system over standard Bergen raises.... It allows you play 1N as only semi-forcing (Or I suppose, even non-forcing), if you wish. Why's that an advantage? It's perfectly possible to include hands with 3-card support within the semi-forcing 1NT response. If Opener passes 1NT, that contract is often safer than 3M. It's also perfectly playable for 3-card limit raises to start with a 2-level bid. With a 4 card non-preemptive raise it hides responder's strength unless opener actually needs to knowNot for long, as there is normally a clue fom the sight of dummy! Of more consequence is that your 3♣ bid will make Opener reveal information about his hand strength (from the fact that he bid 3♦, or from he fact that he didn't bid 3♦). Always an immediate fit-showing bid with 3+ supportDisambiguates the auction 1M-1N(*)-2x-2M (Now shows exactly 2 card support) This is not necessarily an advantage either. If the opponents are considering whether to protect, it's much harder for them when they don't know whether you have a fit or not. Quote Link to comment Share on other sites More sharing options...
glen Posted February 16, 2013 Report Share Posted February 16, 2013 A better alternative to Bergen would be Berkowitz Quote Link to comment Share on other sites More sharing options...
blackshoe Posted February 16, 2013 Report Share Posted February 16, 2013 A better alternative to Bergen would be BerkowitzWhat's a Berkowitz? Quote Link to comment Share on other sites More sharing options...
glen Posted February 16, 2013 Report Share Posted February 16, 2013 What's a Berkowitz?One of these:http://en.wikipedia.org/wiki/David_Berkowitz_(bridge) Quote Link to comment Share on other sites More sharing options...
Cthulhu D Posted February 16, 2013 Report Share Posted February 16, 2013 I think if you want to horse around here, its better to telescope all of your 4 card, non preemptive raises into 2♠ / 2N. There are some So Cal pairs that do this, and it seems to work OK. Of course, they also use 1M - 3x as a flower or mini-splinter, so I still question their intelligence. In essence: 1♠ - 2N - 3♠ (a hand that does not going anywhere unless partner is GF)1♠ - 2N - 3♣ (a hand that accepts opposite a limit raise but rejects a constructive raise, but I think this can be a club stiff and extras++). Anything else = normal Jacoby response and extras ++ Or even just put the 4 card limit raises and game forces in 2NT, then use the 3C as minimum style response structures you have advocated before. That strips the top end of the 6-12 bid out and makes it much more managable. A straight upgrade on the existing structure. Quote Link to comment Share on other sites More sharing options...
Free Posted February 16, 2013 Report Share Posted February 16, 2013 3♣ is a huge range but could be playable. However you'll need more than 1 relay. For example 3♦ relay looking for non-minimum (say 3♠ rebid by responder shows 6-7), 3♥ relay looking for a maximum (3♠ is around 6-10). Quote Link to comment Share on other sites More sharing options...
fromageGB Posted February 16, 2013 Report Share Posted February 16, 2013 Huh? Over 3♦ if responder has the 6-9 hand they bid 3♠, otherwise they bid something else. You can always stop in 3M over either 3♣ or 3♦. As for opener needing to know - suppose opener is on a 5332 16 count. That probably wants to be in game opposite any hand with 6-12 with 4 card support, but isn't interested in slam (unless perhaps partner has good side suit, which they will show show over 3♦). 3♣ is a huge range but could be playable. However you'll need more than 1 relay. For example 3♦ relay looking for non-minimum (say 3♠ rebid by responder shows 6-7), 3♥ relay looking for a maximum (3♠ is around 6-10).What you are forgetting is that the red ones with rounded tops are hearts, and if 3♦is an inquiry/relay, there can be only a 2-way split, not 3, or the 4 that I would prefer if the range really is 6-12. And there is only one relay available. Oh, you could of course play Tyler over 1♠ and Bergen over 1♥. Quote Link to comment Share on other sites More sharing options...
blackshoe Posted February 16, 2013 Report Share Posted February 16, 2013 One of these:http://en.wikipedia.org/wiki/David_Berkowitz_(bridge)Him I know, or at least I know of him. Berkowitz the convention? Never heard of it, until this thread. Quote Link to comment Share on other sites More sharing options...
PhilKing Posted February 16, 2013 Report Share Posted February 16, 2013 Him I know, or at least I know of him. Berkowitz the convention? Never heard of it, until this thread. Er, Larry Cohen decided that Dave Berkowitz was a better alternative to Marty Bergen. :ph34r: Quote Link to comment Share on other sites More sharing options...
jogs Posted February 17, 2013 Report Share Posted February 17, 2013 This was a system I was introduced to by a partner of mine - I am unsure if it's a creation of his, or something he learned from someone else, but I quite like it and have had good results playing it. Bids are as follows. 1♠-1NT: Semi-forcing, never 3♠ Do you mean never 3 spades? 1♠-2♠: Normal 3 card raise With 4333, 2♠ is high enough. Oftentimes, even with 4432 2♠ is high enough. Hand from the past. 3424 with 7 HCP. 1♥-3♣, 3♥ all pass.3♥-1. It was a push. Opponents were also playing bergen.1♥-2♥ all pass, would have been a winner. Quote Link to comment Share on other sites More sharing options...
blackshoe Posted February 17, 2013 Report Share Posted February 17, 2013 Er, Larry Cohen decided that Dave Berkowitz was a better alternative to Marty Bergen. :ph34r:Ah, I see. I missed the joke. Oh, well. :lol: Quote Link to comment Share on other sites More sharing options...
GreenMan Posted February 17, 2013 Report Share Posted February 17, 2013 Kleinman and Straguzzi suggest: 3♣: 7-8 or 11-12. 3♦ by opener asks which.3♦: 9-10. You'll have to add the 3-card LR to the 1NT response, but that's no biggie. Quote Link to comment Share on other sites More sharing options...
fromageGB Posted February 17, 2013 Report Share Posted February 17, 2013 Kleinman and Straguzzi suggest:3♣: 7-8 or 11-12. 3♦ by opener asks which.3♦: 9-10.I can't see the point of this. With hearts trumps I play 3♣ = 7-10; 3♦ asks3♦ = 11-12and it achieves the same thing, but with the advantages of not having to remember a split range, the ask is bid less often, and a stronger 3♦ reply facilitates a cheap cue from opener when he is very strong. With a possibly strong 3♣ you are higher by the time the strength is confirmed. What is the benefit of splitting range? Quote Link to comment Share on other sites More sharing options...
glen Posted February 17, 2013 Report Share Posted February 17, 2013 I can't see the point of this. With hearts trumps I play 3♣ = 7-10; 3♦ asks3♦ = 11-12and it achieves the same thing, but with the advantages of not having to remember a split range, the ask is bid less often, and a stronger 3♦ reply facilitates a cheap cue from opener when he is very strong. With a possibly strong 3♣ you are higher by the time the strength is confirmed. What is the benefit of splitting range?Chthonic found it easier to remember. I think you want to reduce the times you ask with 3♦, and 7-8/11-12 is the worst for that. I like:3♣ = 9-12; 3♦ asks3♦ = 7-8 With my wife we played 3♦ as split, 7-8 or 15+ with 5+ support. Quote Link to comment Share on other sites More sharing options...
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