our 2D structure

[straube]

Applying what I've learned from the 2C discussion (mostly that 2M needs to be forcing)....

 

Our 2D is 10-15, 6+ diamonds, no 4-cd major although up to 4C permitted.

 

2H-GF relay

.....2S-4 clubs

.....2N-balanced (probably 10-13 else 1N opening)

.....3C-higher

.....etc

 

2S-a GI ask

 

2N-forcing, spades

 

3C-forcing, hearts

 

3D-weak

 

3M-FSJ

 

I'm thinking that we have less room over 3C (hearts) than over 2N (spades) so the 3C bid needs to be more precise in what it shows. I'm thinking that it should be 12+ in pts whereas the 2N could be 9+ (with tolerance).

 

Then the 2S bid has to handle hands with 5 hearts and 9-11 with diamond tolerance.

 

2D-2S

.....2N-weak

..........P-12-13 misfitting

..........3C-5 hearts, 9-11, diamond fit?

..........3D-nf

.....3C-medium, 3 hearts?

.....3D-medium, not 3 hearts?

.....3H-maximum, 3 hearts?

 

Or should we devote space to finding club fits?

[dake50]

Your most common goal is 3NT. Play 2M as stop: is this the suit you fear, partner? Or can you support this M?

Try hard for the 3NT on running minor.

[straube]

Mark Abraham's plays a near identical 2D opening (6+ diamonds and up to 4 clubs). Here's his structure...

 

2H.....Game-forcing relay

.....2S 2-suited with 6+D and 4C (symmetric continuations) (impossible shapes are omitted from the structure)

.....2NT+ 1-suited with 6+D (symmetric continuations)

 

2S Natural, non-forcing (5)6+S

.....2NT 7+D with broken suit and heart and club honours

.....3C 3S 3+C 0-1H

.....3D Solid 7+D

.....3H 3S 3H 0-1C

.....3S 3S minimum balanced

.....3NT Impossible

.....4D Solid diamonds and 3S

.....4H 3S maximum balanced

 

2NT Natural, invitational

3C Not invitational, wide-ranging, seeking a club contract when responder has four clubs and a diamond contract otherwise

3D Not invitational, wide-ranging

3H Natural, non-forcing (5)6+H

 

3S/4C Fit-showing jump, 6 cards in the suit bid and 3D

4NT Both minors, requesting a 5C response when holding four clubs

Games To play

[straube]

2H-GF relay

2S-GI ask, holds one or both 5-cd majors

.....2N-minimum, no major

..........3C-nf, 4 clubs

..........3D-nf

..........3H-6H

..........3S-6S

.....3C-minimum, 3H

..........3D-5S

..........3H-nf

..........3S-6S

.....3D-minimum, 3 spades, not 3H

.........3H-6H

.........3S-nf

.....3H-max, 3 hearts

..........3S-6 spades

..........3N-5 spades

.....3S-max, 3 spades

.....3N-max, no major

2N-GI, misfitting diamonds or positional for NT, nf

.....3C-weak, 4 clubs

3C-constructive diamond raise

3D-weak

3H-clubs, invitational

3S-LR in diamonds

[keylime]

2M with us is NF (our 2♦ can be on 5-4 with clubs). 2NT is forcing inquiry.

[straube]

2M with us is NF (our 2♦ can be on 5-4 with clubs). 2NT is forcing inquiry.

 

What's your whole structure? What are the requirements for 2M response and for pass? What are the continuations after 2D-2N?

And what are 3L responses?