Some hands don't seem to be biddable to their limit - or is it just my bidding system? This one appeared tonight:
|Dealer North; All Vulnerable|
| Q 8 6 4 2
A K Q 9 2
| A K 10 4 3
J 10 4
9 8 3
I opened a diamond (playing Benji Acol, weak no-trump and 5-card spade suit) intending to rebid spades twice (if necessary) to show 5-5. After the overcall and partner's 1S what next?
I chose 4S - not necessarily the best bid - and this was the final contract. The post-hand discussion covered several other possible sequences but I still don't know how we can reach the unbreakable 6S scientifically.