Codo, on Jan 13 2010, 12:12 PM, said:
YOu give any pair the chance of a risk free two way shoot to escape from 1 NT doubled. Responder bids one suit and if this is doubled he bids the next one. This may be a valid agreement with proper disclosure but not without.
But it
is properly disclosed in this case.
2
♦ is not alerted. This can mean either that it's natural or that it's undiscussed. If opps ask, they will hear that it's undiscussed. It follows that West is likely to pass 2
♦, and that East will correct to 2
♥ if it gets doubled and he happens to have hearts. If this is the agreement it must be disclosed as well, but more likely the agreement (well, lack of agreement) is just "undiscussed".
This is far from risk-free. They may play a silly 2
♦ contract when they can make 2
♥ (or 4
♥ or maybe even 6
♥ if the double was a joke, but OK East would try to avoid transferring with strong hands if he realizes that West may take it as natural. Then again, what can you do. 3
♥ may be taken as preemptive and 4
♥ as texas).
Look, it is not that I am arguing that failure to make agreements is great fun and that I consider it a system gain when our lack of agreements leads to a good result. In fact, this problem is
the reason why I prefer not to play transfers with a random p, and if he insists on transfers, one of the first things to discuss is if they apply here (and in response to 1NT overcalls).
But it does happen. This one came up in a team match in the Amsterdam league:
1
♠-(1NT)-pass-(2
♦)
pass-(2
♥)-a.p.
My p didn't double 2
♦ for the lead because on an unalerted (hence natural) 2
♦ call, dbl is t/o of diamonds. 2
♦ was not alerted because it was undiscussed but overcaller happened to guess right. My failure to lead a diamond properly cost the contract. Arguably the 2
♦ bid should have been alerted in this case, but assuming that undiscussed bids which may be natural are not alertable, there was nothing we could do about it.
Some opps announce at the beginning of the round that they are not a regular partnership. Then we know that we should ask what such a 2
♦ bid means. Problem is that we have no agreement about what a double of an undiscussed 2
♦ bid means, but probably if opps announce that they are not a regular partnership we should rush to make such agreements
The world would be such a happy place, if only everyone played Acol :) --- TramTicket