[cencio]

---

If you can explain with a scheme the various possible replies based on the responder's hands

[mw64ahw]

As an Acol strong 2♦ I reply 2♥ as negative with opener following up with 2♠. I'd expect to end in 3N.

[PrecisionL]

I have tried various schemes for very strong hands and settled on the following design (when not playing a strong ♣ system):

2♣ all very strong hands (3-4 losers) excluding:

4441 16+ hcp
1-suited ♦s primary and 5-losers or less

2-suited, ♦ primary & 2nd suit shorter than ♦

2♦ 3-5 loser hands:

all 4441 hand 16+
18+ with 5+♦, Balanced
18+ 1-suited with ♦ unbalanced
18+ 2-suited with ♦ primary and a 2nd 4-cd or better suit

[thepossum]

Just for clarification we are talking multi 2d, not strong 2D which is something else

Strong 2D is 8 playing tricks or so in diamonds - that is what I would assume you had if you saiid you were playing strong 2s and opened 2 diamonds - not sure how many you could make with diamonds on that hand of course. I can see 6 or 7 at least

Looks too strong to be the Roman 2D and far too strong to be my favorite the Fighting Irish 2D