Kungsgeten Posted January 5, 2017 Report Share Posted January 5, 2017 In our Swedish club structure (12-14 NT or 17+; excluding 17-19 NT and 17-19 with primary diamonds) we currently use the following rebids after 1C-1M: 1S = Natural F1. 5+ spades if strong. XY-NT continuation.1NT = 12-14 NT.2C = Natural without support, 17+.2D = Odwrotka. 3+ support and 17+.2M = 12-14 NT.2oM = Natural without support, 17+. 1C-1H; 2S shows a good suit.2NT = 20+ 4441 or balanced without support.3C = 20+, 4+C and 5+D without support.3D = 20+, 6+D without support.3M = Undefined.3oM = 20+, 5+D and 4oM without support.Higher = Undefined. I'm not very fond of the diamonds showing bids, and was thinking of incorporating Odwrotka into the 2C bid; making it show 3+ support or clubs. Then 2D would be natural 20+ without support. When playing Odwrotka we do the following: 1C-1M; 2D---2H = 12+Higher = 8--11 So my idea with the Odwrotka/clubs combination would be along these lines: 1C-1M; 2C---2D = Waiting, 8--11....2H = Shows support, back to usual Odwrotka scheme....2S+ = Clubs without support.2H = 12+....2S = Shows support, back to usual Odwrotka scheme....2NT+ = Clubs without support. For responder's higher rebids I'm not quite sure, but have thought of the waiting bids denying a 6+ suit (we respond 1M to 1C with longer minor unless GF): 2S = 6+ major, 8--11.2NT = 6+ major, 12+.3C = 6+ clubs, 8--11.3D = 6+ diamonds, 8--11. This will all be fine when opener has the hand with support, but I'm not sure how the bidding should continue when opener has the club hand. Any suggestions? Quote Link to comment Share on other sites More sharing options...
helene_t Posted January 5, 2017 Report Share Posted January 5, 2017 is your 2c rebid gf? if yes then it might work but I am still concerned about overloading. otoh the current solution obviously underloads it.Presumably the 2d rebid covers 54mm hands also? then maybe it's ok. There is a difference between a 1♥ response and a 1♠ response, btw. After 1♠, it can't be efficient to make 2♦ show diamonds and 2♥ show hearts. Hands with primary diamonds are quite specific (as they don't usually open 1♦ in the first place). Maybe better to play2♣=odwrotka or diamonds2♦=clubs Quote Link to comment Share on other sites More sharing options...
Kungsgeten Posted January 5, 2017 Author Report Share Posted January 5, 2017 Yes, the 2C rebid is game forcing. The 2D rebid would cover unbalanced handa with 5+ diamonds and 20+ hcp without support, so could be 54 or 55 minors). Swapping 2C and 2D could definitely work (and was my first thought). I do not quite get what you mean in the second paragraph, sorry. Quote Link to comment Share on other sites More sharing options...
helene_t Posted January 5, 2017 Report Share Posted January 5, 2017 I do not quite get what you mean in the second paragraph, sorry.oops sorry I messed it up. Corrected now. Quote Link to comment Share on other sites More sharing options...
kreivi68 Posted January 5, 2017 Report Share Posted January 5, 2017 Just play normal 2D Odwrotka and put minor hands to 2C. Something like: 1C-1M; 2C = 5m1C-1M; 2D = 3+ M support1C-1M; 3m = one-suiter, 17-19 After 1C-1M; 2C you can bid natural 2M/3m (6 cards or 5-5) or relay with 2D: 2oM= 4M + longer minor2M= both minors, 17-192NT= both minors, 20+3m= one-suiter, 20+ Cheers, T. Quote Link to comment Share on other sites More sharing options...
Kungsgeten Posted January 6, 2017 Author Report Share Posted January 6, 2017 Just play normal 2D Odwrotka and put minor hands to 2C. Something like: 1C-1M; 2C = 5m1C-1M; 2D = 3+ M support1C-1M; 3m = one-suiter, 17-19 After 1C-1M; 2C you can bid natural 2M/3m (6 cards or 5-5) or relay with 2D: 2oM= 4M + longer minor2M= both minors, 17-192NT= both minors, 20+3m= one-suiter, 20+ Cheers, T. We used to do something like that, but moved away from it when we increased the range of our 1D opening. Perhaps it would be worthwhile to have a look at it again. We used the 2C rebid as 17+ with a two-suited hand with a 5+ minor (a jump to 3m was 17+ single-suiter). See Lakebeach 2C here. Quote Link to comment Share on other sites More sharing options...
nullve Posted January 6, 2017 Report Share Posted January 6, 2017 Another idea, which should be possible to combine with Helene's switch idea: Exploit the similarity between the 1M response to a Swedish 1♣ opening and the 1M opening in the 4-card major system ("The Science"?) that the Hackett brothers used to play. Also, their 2♣ response looks a lot like your natural-or-Odwrotka 2♣. I don't know anything about their follow-ups after 1M-2♣, though. Quote Link to comment Share on other sites More sharing options...
Kungsgeten Posted January 19, 2017 Author Report Share Posted January 19, 2017 We used to do something like that, but moved away from it when we increased the range of our 1D opening. Perhaps it would be worthwhile to have a look at it again. We used the 2C rebid as 17+ with a two-suited hand with a 5+ minor (a jump to 3m was 17+ single-suiter). See Lakebeach 2C here. I've been thinking and an idea could be to put hands with 5+D and 4+C into the 2C rebid. Something like this: 1C-1M;2C = 4+C, unbalanced. May have longer diamonds (if so then 20+ hcp).3C = 5+D and 4oM, 20+3D = 6+D, 20+ After 2C responder can relay with 2D or bid something natural. 1C-1M; 2C-2D;2H = 5+C, minimum (about 17--19). May relay with 2S.2S = 5+D and 4+C, 20+2NT = 5+C and 4oM, 20+3C = 6+C, 20+3D = 5+C and 4D, 20+3HS = ??? Quote Link to comment Share on other sites More sharing options...
Zelandakh Posted January 19, 2017 Report Share Posted January 19, 2017 I am not sure if I like that structure. The sequences look way too short of space for effective relay bidding. I looked at a couple of possibilities and I think you can improve the efficiency here by moving the 17-19 hands out to a more convenient spot. But after fiddling with it, it occurred to me that when going this route it might be better to take the 17-19 hands out earlier and combine the 20+ hands into the 2m rebids. I am not really familiar with your system but is there any reason we cannot (after 1♣ - 1M) do something like: 2oM = 17-19, 4oM2N = 17-19, 3M3♣ = 17-19, 6+♣, 1-suited3♦ = 17-19, 4♦3M = 17-19, 4M Then it is just a matter of distributing the 20+ hands between 2♣ and 2♦, which should be easy. Actually that is too easy so there is probably a key hand type missed out... :unsure: Quote Link to comment Share on other sites More sharing options...
Kungsgeten Posted January 19, 2017 Author Report Share Posted January 19, 2017 I am not sure if I like that structure. The sequences look way too short of space for effective relay bidding. I looked at a couple of possibilities and I think you can improve the efficiency here by moving the 17-19 hands out to a more convenient spot. But after fiddling with it, it occurred to me that when going this route it might be better to take the 17-19 hands out earlier and combine the 20+ hands into the 2m rebids. I am not really familiar with your system but is there any reason we cannot (after 1♣ - 1M) do something like: 2oM = 17-19, 4oM2N = 17-19, 3M3♣ = 17-19, 6+♣, 1-suited3♦ = 17-19, 4♦3M = 17-19, 4M Then it is just a matter of distributing the 20+ hands between 2♣ and 2♦, which should be easy. Actually that is too easy so there is probably a key hand type missed out... :unsure: Well, it is not really meant to be a relay structure (perhaps I misused the "relay" word), just that responder can make a "waiting" bid instead of making a natural bid, for instance: 1C-1S; 2C---2D = Waiting (or relay, whatever you want to call it)2H = 5-5 majors2S = 6+ spades2NT = Not sure, perhaps 4+ clubs and extras, or maybe 5-5 spades + diamonds.3C = 4+ clubs3D = 5-5 spades + diamonds (if not in 2NT) Regarding our system I think you misunderstood the 1C opening. The 1C opening shows: a) 12-14 NT without a five card major. We treat 4-4-1-4 as NT.b) 17--19 with 5M332.c) Any 20+.d) 17--19 unbalanced with 5+H, 5+S or 5+C. I tend to describe it as 12-14 NT or 17+, but we exclude 17-19 NT and 17-19 unbalanced with primary diamonds. So what I'm suggesting is: 1C-1S (1S shows 4+S unlimited and is GF vs strong hand);1NT = 12-14 NT, not 4S2C = < 3 spades. Unbal 5+C 17+ or 4+C and 5+D 20+.2D = 3+ spades, 17+2H = < 3 spades. 5+H, 17+2S = 12-14 NT, 4S.2NT = 20+ NT with 2S or 1-4-4-4 20+.3C = < 3 spades. 5+D, 4H, 20+.3D = < 3 spades. 6+D, 20+.Higher = Undefined. Quote Link to comment Share on other sites More sharing options...
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