jillybean2, on May 16 2007, 09:44 PM, said:
x,x,AKJxx,AKQxxx if these hands are bid via 2nt, then a 2♣:3♦ bid does not exist at all? U2nt can cover such a wide range of 2155 hands, I use it mostly on weak hands. Why not use 2♣:3♦ to show a good, strong hand? If I bid 2nt we can't stop at the 3level , I must bid again to show this strength.
That's correct but if you have both minors there's an advantage of showing that immediately so that partner can do something inteligent after LHO has raised 1
♠ to 4
♠.
3
♦ is an exotic bid but here's some inference:
- You don't have two appr. equal suits since then you've started with 2NT
- You don't have hearts support since then you've started with X or doubled now
- You don't merely want to show a diamond side-suit since you could have done that with 2NT, still offering partner to bid 3
♣.
- You don't merely want to play 4
♣ since then you'd bid 4
♣ now.
Obviously, you have enough O/D to compete to 4
♣ on your own, but
- You offer 3
♦ just in case partner has diamonds
- You didn't overcall 4
♣ at first because you're too strong. In fact you may still have some game interest
- It's interesting what the difference is between 2NT and 3
♦. 3
♦ forces partner to take preffence at the 4-level and it's unclear what advantage 3
♦ may have. If opps play Bergen style, you know they have only 8 spades so they might very well let you play 3
♣.
Maybe 3
♦ shows five bad diamonds while 2NT shows 4 (or maybe 3) good diamonds. A useful agreement against opps who play Moscito so that partner is on lead.
The world would be such a happy place, if only everyone played Acol :) --- TramTicket