[efe_]

Hello friends!

Is there anyone who can suggest me responses over "strong 1♦ opening" ?
Let me describe the possibilities of 1♦ opening:
i) 15/17 balanced hand
ii) (good 17)18/23 unbalanced hand
iii) 24+ any

There are lots of options for strong 1♣ but my system requires to open 1♦ with strong hands..

Best regards

[PrecisionL]

Well, I have a few strong diamond systems in my files ....

It would help to know if this is for ACBLand play or elsewhere (if so what are the restrictions on responses?). The major problem is an artifical response of 1♥ as a negative response (just like a 1♦ negative response to a strong 1♣).

Larry

[awm]

Here's what David Kempe and I play:

1♥ = 0-4 or 9+ points any shape (i.e. double negative or GF)
1♠ = 5-8 balanced (systems on as if 1NT opened, 1NT by opener is natural NF)
1NT = 5-8 hcp some 4441 or 5431 or 4450 type pattern no 5-card major
...... 2♣ relay (responder bids short suit or 2NT=short clubs)
...... Else = natural 6-card suit, to play if that is partner's singleton
2♣ = 6+♣ and 5-8 hcp
..... follow-ups like a natural 2♣ opening
2♦ = 6+♦ and 5-8 hcp
..... follow-ups like a natural 2♦ opening
2♥ = 5+♥, unbalanced, 5-8 hcp
..... follow-ups like a natural 1♥ opening, but shifted up (2♠ KI, 2N=♠, 3m natural GF)
2♠ = 5+♠, unbalanced, 5-8 hcp, never exactly 3♥
..... follow-ups like a natural 1♠ opening, but shifted up (2NT F1, 3m GF, 3♥ shows 6+)
2NT = 5+/5+ in the minors, 5-8 hcp
3♣ = 5314-ish, 5-8 hcp
3♦ = 5341-ish, 5-8 hcp
3♥ = 6♠-3♥ 5-8 hcp

1♦-1♥:

1♠ = either a three-suited hand or 21+ hcp any
..... 1NT = GF relay
..... 2♣ = 0-4 nothing special
..... 2♦ = 0-4 5+/5+ in two suits at least one major
..... 2M = 0-4, 6+ suit
..... 2N = 0-4, extreme minor two suiter
..... 3m = 0-4, 6+ in the minor
1NT = natural systems on (can be wide range like 16-20)
2m = natural 6+ NF opposite 0-4
2M = natural 5+ unbalanced NF opposite 0-4
2N = 5+/5+ in minors NF opposite 0-4

This is probably not "best" but has the advantage of being very simple. There are many sequences that are identical to after similar opening bids for example.

[CamHenry]

♦mjj29 and I play a strong diamond system; our 1♦ includes:
16-23 balanced
16+ hands with > 3 losers
GF single-suited hands.

Responses are:
1♥ negative
1♠ 8+, GF
1NT to 2♥ weak transfers, with a 6-card suit.

The weak transfers are excellent preemptive bids; it's rather like opening a safe third-seat weak 2, or like signing off after 1NT. It also makes the strong (and undefined) hand declarer; with a decent fit and better than a minimum, opener can make some action other than completing the transfer.

After 1♦-1♥, rebids are natural; 1NT is 16-19 and 2NT is 20-23 (much like wide-ranging natural openings). Suits promise 4+ but only if 4-4-4-1; jump suits are 3-loser or better hands.

After 1♦-1♠, we play artificial rebids (except NT and jumps in suit, which retain their natural meanings). Each suit is a puppet to the bid above, showing either that suit or the next two:
♣ shows ♦ or majors
♦ shows ♥ or (♠+a minor)
♥ shows ♠ or minors
♠ shows ♣ or (♥+a minor)

This allows us to show 2-suited hands efficiently; we put 3-loser 2-suited hands through our 2-level openings (which is probably not available in the ACBL).

The main disadvantages of our response styles are:
- Sometimes easy for opps to preempt even after 1♦-1♠
- Constructive bidding after the response need careful thought (though a relay structure could work well)

Advantages:
- Establishing a game-force early allows safety in constructive auctions, and allows more frequent penalty doubles
- Transfer weak jump shifts allow us to play a lot of partscores
- Natural 1NT/2NT rebids mean 1NT and 2NT can be artificial/used for other ranges/whatever you prefer.

In your opening scheme, I'd suggest that our structure could be adopted safely, but rebids could be:
1NT: 15-17 bal
2NT: 24+ bal
simple suit rebids: 18-23
jump suit rebids: GF

This still leads you the difficult problem of how to handle extremely strong 2-suited hands, but they're a low-frequency case.

[efe_]

Thank you very much Larry, awm and CamHenry...

Larry, I don't play ACBL tourneys, I just try to establish a new system.

I think awm's suggestion is nice for me but I like to know his 1♦ opening's details..

[awm]

We play 1♦ = 16+ any or rule of 25+ (except 19-21 balanced at vulnerable)

The rest of our constructive openings:

2m = rule of 20 (normally 10-15 hcp) with 6+ minor
1NT = 10-12 NV; 19-21 V
1M = rule of 18 unbalanced 5+ major
1♣ = 13-15 balanced or 11-15 three suited (include 5431 no 5M) or both minors

[the hog]

Have a look at the Burgay Diamond.

[PrecisionL]

Don't forget Magic Diamond. Although the geocities sites are now extinct.

[gwnn]

magic diamond... 1♣ as 13-16 unbalanced or 15-17 bal always made me sad 13-16 ANY UNBALANCED or 15-17 balanced