[ppek]

Hi all,

I am trying to design system based on Magic Diamond structure and actualy I am stucked in 1D structure. The original structure after 1H negative (0-7 any hand) is to complex.

I am looking for structure that could be conventional but not relays and prefer as naturalish as possible continuations. Any experiences or suggestions?

Regards
Pavel

[Gerben42]

1♠ as second positive, rest natural is simplest but not optimal. I guess better would be reverse the majors and the minors, i.e.

2♣ = 4+♥
2♦ = 4+♠

[Free]

I'd suggest the following:

After 1♦-?
1♥ = semipositive (5-7 or so)
1♠ = double negative
1NT+ = GF, whatever structure you use

After 1♦-1♥-?
1♠ = relay, GF (opener responds 1NT+, the structure you use for initial GF hands, so no extra memory load here)
Other bids natural and not GF

After 1♦-1♠-?
Whatever you prefer after double negatives. I like 2♣ as strong and rest canapé transfers.

[hrothgar]

Hi There

Back in the day, when I was playing arround with Magic Diamond, I found it easiest to adopt control showing response like the ones used in old style Blue Team Club.

I don't claim that this structure was in any way optimal, however, it did have the benefit of being very simple.

[NickToll]

Years ago, I used to play a strong diamond system (17+). My partner and I had a very simple development over 1♦:

1♦ - 1♥: negative or super-positive (14+); I think super-positive can be be dropped without any serious loss
1♦ - 1♠: 8-13, GF unbalanced; here, opener's 1NT suggests no special suit
1♦ - 1NT: 8-13, GF balanced; here, opener's 2NT shows a balanced hand with one or both four-card majors or slam interest
1♦ - 2suit: 5-7, fair 6card suit

1♦ - 1♥ - 1♠: 17-20, unbalanced, no good suit, typically a 5.4
1♦ - 1♥ - 1NT: 17-20, balanced
1♦ - 1♥ - 2suit: 17+, natural, 1RF; if minimum, good suit
1♦ - 1♥ - 2NT: 21-23, balanced (with 24+, rebid 2♣ over 1♥, then 2NT)
1♦ - 1♥ - 3suit: 21+, 3suiter, shortness in the same ranking suit (e.g., 3♣ = short diamonds)

1♦ - 1♥ - 1♠ - 1NT: double negative
1♦ - 1♥ - 1♠ - 2suit: 5-7, natural, even a four-card suit
1♦ - 1♥ - 1♠ - 2NT+: super-positive, natural

1♦ - 1♥ - 1NT: your favourite notrump system will do fine

1♦ - 1♥ - 2suit - 1st step: double negative; here opener's suit rebid is not forcing, a new suit is forcing one round
1♦ - 1♥ - 2suit - others: natural and at least semi-positive; a new suit can be bid with four cards only
1♦ - 1♥ - 2suit - 2NT: four or more cards in the 1st step suit, at least semi-positive

Very, very simple and natural, with a reasonable chance to find the best fit within the three level (we used Italian cue-bids in the slam auctions). Surely not the most efficient development after 1♦, but with a good results-to-effort ratio...