(1♦)-DBL-(P)-2♣
(P)-2♦-(P)-2♥
(P)-3♦-(P)-4♣
(P)-4♥-AP
We agree until:
- 2♣=No 4cM and weak
- 2♦=very strong, not necessarily ♣-fit, not GF
And questioned:
- 2♥: Is this promising extras or just a 3-card with a stop. Can it be done with?: xxx=QJx=xx=xxxxx
- If DBL'er would bid 3♥, is that forcing?:
(1♦)-DBL-(P)-2♣
(P)-2♦-(P)-2♥
(P)-3♥
- Is 3♦ very strong with a ♣-fit?:
(1♦)-DBL-(P)-2♣
(P)-2♦-(P)-2♥
(P)-3♦
- Is 4♥ a cue for ♣, or can it be a very strong hand with only ♥?:
(1♦)-DBL-(P)-2♣
(P)-2♦-(P)-2♥
(P)-3♦-(P)-4♣
(P)-4♥
The bidding and hands: