continuations after nebulous diamond

[arnoldson]

Assuming 1♦ is 1 of:-

 

11-13 balanced

11-15 with 6+♣

11-15 with ♦ and ♣ with longer ♣ (includes 5-6)

11-15 with exactly 4M and a longer minor (includes all 4441s and 5440s with 5m).

 

 

what continuations are recommended? 1♥ = natural or relay? If so, is 1♠ limited? I'm no good at designing relays efficiently. Any help would be appreciated.

 

edit: rest of system is a version of precision:-

1M = 5+ 11-15

2♦ opening = no major, 6+♦ or 5+♦ with 4+♣

1NT = 14-16

2♣ - i want to reserve this for weak majors.

it might seem odd not to play 2♣ natural and 2 ♦ for the majors, but having tried both, 2♣ works far better in my experience.

 

This is for play in WBF events, so regulations shouldn't be a problem.

[straube]

What do you open with 4441s? 5C440s? 5D440s? 5D/6C?, 5D/5C?

 

What are your 2C and 2D openings?

[foobar]

Assuming 1♦ is 1 of:-

 

11-13 balanced

11-15 with 6+♣

11-15 with ♦ and ♣ with longer ♣

11-15 with exactly 4M and a longer minor

 

what continuations are recommended? 1♥ = natural or relay? If so, is 1♠ limited? I'm no good at designing relays efficiently. Any help would be appreciated.

 

This is for play in WBF events, so regulations shouldn't be a problem.

 

This 1♦ looks very similar to Miles' Unbalanced diamond (except for the balanced hand option). What are the rest of the openings?

[arnoldson]

I edited the original post to add more info

[straube]

Deleted

[nullve]

Assuming 1♦ is 1 of:-

 

11-13 balanced

11-15 with 6+♣

11-15 with ♦ and ♣ with longer ♣ (includes 5-6)

11-15 with exactly 4M and a longer minor (includes all 4441s and 5440s with 5m).

 

 

what continuations are recommended? 1♥ = natural or relay? If so, is 1♠ limited? I'm no good at designing relays efficiently. Any help would be appreciated.

 

edit: rest of system is a version of precision:-

1M = 5+ 11-15

2♦ opening = no major, 6+♦ or 5+♦ with 4+♣

1NT = 14-16

2♣ - i want to reserve this for weak majors.

it might seem odd not to play 2♣ natural and 2 ♦ for the majors, but having tried both, 2♣ works far better in my experience.

 

This is for play in WBF events, so regulations shouldn't be a problem.

If one starts with

 

1♦ = modern Precision 1♦ or 2♦

2♣ = modern Precision 2♣ (so 6+ C)

2♦ = Ekren

 

and then decides that Ekren 2♣ would be more effective, it's tempting to try

 

1♦ = modern Precision 1♦ or 2♦, but with minor suits reversed, so often 5+ C if unBAL (and less often 5+ D)

2♣ = Ekren

2♦ = moden Precision 2♣, but with minor suits reversed (so 6+ D).

 

Is that what you did?

 

The new 2♦ opening is ok (and identical to IMprecision's), but because 2♦ over 1♦-1M is now a kind of reverse (with respect to Opener's likely long suit, clubs), Opener will usually have one fewer rebid below 2 of his long minor than in modern Precision, so decribing minimum hands without support ought to be even harder. Is that part of the reason your 2♦ opening also includes 11-15 hands with 5D4+C? I'm not sure that solves more problems than it creates, since you could also use the "reverse" into 2♦ over 1♦-1M to show 11-15, 2-M5+D4+C and not be higher. But at least by opening 2♦ instead of 1♦ with this hand type you share your problem with opps (who now face an intermediate strength preempt), which is often a good thing.

 

You also include 11-15, 4M6+D in 1♦ opening, making it even more nebuloous. I don't mind that at all, but standard responses and rebids become unplayable at some point. So in the "Nebulous 1D (SOLVED)" thread my solution (post #26) was a structure with more focus on Responder than Opener on partscore deals. The basic idea was

 

1♦-?:

 

1♥ = "S"

...1♠ = 3-S3-H OR MAX w/ SUPP [corrected]

......1N = "4S4-H or 53(32), NF" [corrected]

......2♣ = "weak, either 5S4+C or 5233" OR INV w/ 5 S (Gazzzilli!) [corrected]

......2♦ = "weak, 5S4+D"

......2♥ = "weak, 5S4+H" [corrected]

......2♠ = "weak, 6 S"

......(...)

...1N = MIN, 3-S4H

...(...)

1♠ = "weak Flannery" OR "no major" OR "IJS in a M" OR "any GF"

...1N = MIN, most hands

......P = < GF, no major

......2♣ = GF relay

......2♦ = weak, Flannery

......2M = "IJS" in M

......(...)

...2♣+ = (usually) MAX and such that it's possible to get out in 2M opposite "weak Flannery"

1N = "3-S4H or 35(32), NF" [corrected]

2♣ = "weak, either 5H4+C or 2533" OR INV w/ 5 H (Gazzilli!) [corrected]

2♦ = "weak, 5H4+D"

2♥ = "weak, 6 H"

(...)

 

I remember bidding lots of hands with this structure, and it seemed promising, but I know many posters here would like (a lot) more space for relays.

Edited June 2, 2018 by nullve

[Kungsgeten]

The nebulous 1♦ opening showing weak NT or unbalanced with 4M and 4+m is fairly popular in Sweden. Here you're adding unbalanced hands with clubs too, so it might be a slight overload. I think you could work something out if you play the 1♥ response as "hearts or relay", but it'll probably be harder after the 1♠ response. Perhaps you could do something similar to Nilsson - Stokka: http://www.svenskbridge.se/sites/default/files/field_sb_upload/cculfadam18.pdf They use:

 

1♣ = 15+

1♦ = Including unbalanced hands without a four card major, and 4441 hands and 5m440 hands.

2M = 10-14 with 4M and 5+ minor

 

Perhaps something like this could be possible:

 

1♣ = 15+ if primary minor, 16+ if primary major, 17+ if balanced

1♦ = 11-13 NT or 10-14 unbal without a major, or 10-14 4441/5m440

1M = 11-15 5+M

1NT = 14-16

2♣ = Weak both majors

2♦ = Weak one major

2M = 10-14 4M and 5+m

2NT = 10-14 6-4/4-6 minors