eagles123, on 2014-August-08, 04:59, said:
I only play Acol on an ad hoc basis as I find all the jumping around and lack of structure confusing. If I was playing at the club I would read the bidding as:
1
♠ = 4+ spades (denies 4 Hearts if it is only on 4 Spades - with some players that might not be true if Spades very much better than Hearts. I usually ask on style but assume I forgot to ask for this hand). Rule of 19 has crept in.
2
♣ = 5+ clubs, clubs longer than red suits and 10+HCP. F1.
2
♠ = 5+ spades, denies 4 hearts. Says nothing about extra values and is non forcing
3
♦ = forcing (new suit, new level) and this is where I get confused. I think it should show a responder reverse and extra values, a very good 14+ HCP but more likely 15+ HCP with 5+ clubs and 4+ diamonds. 2NT would show some sort of Heart stop (Qx is acceptable to me but not to everyone's liking) and be non-forcing and a minimum 10 to a poor 13 HCP and deny 3 spades. In this context 3H would be a similar reverse)
At this point I think North has a problem, or at least I would if I was North and by now I would be thinking that we maybe have something on. 3
♥ is generally taken as a stopper ask (sometimes referred to as DAB (Direction Asking Bid)) so 3NT shows a Heart stopper but by-passes the 6th spade. 3
♠ is taken by many as non-forcing but does show the 6th Spade. 3NT might be seen as a sign off and doesn't show the three good clubs.
On balance I think I would would go with 3NT as partner has only shown 14+ HCP, my Spades are poor and although I'm around the top end of a minimum opening I think it is the safest bid to make sure we are at least in game because I'm worrying that 4 Clubs is seen as denying a Heart stop, a 6th spade and non forcing, which would be my worry with an ad hoc partner.
South's 4
♠ is risky as could be a 5-2 fit and as North I would read South a 3=1=4=5 and would probably start a Blackwood sequence (unlikely to be RCKB at my club) on discovering missing an Ace I might sign off in 5
♠ but if its RCKB would probably sign off in 6
♠.
That's a rather long winded way of saying that I don't know how to get to 6 clubs in a basic Acol style with the average club player. I would console myself in the knowledge that few club players would find 6
♣. If we'd stopped in 3NT then those that were in a making 6
♠ got lucky.
With a good partnership understanding I think 4
♣ by North as the 3rd bid should show club support and slam interests if 3
♦is also a reverse. At this point cue bids and RKCB should get to slam in Clubs.