steve2005, on 2013-March-05, 08:41, said:
This is pretty well the only method listed, where you can be weak and try to find a 4-4 fit. This is an important method to escape.
Zelandakh gives "Better is to play XX as showing a 1-suiter and direct bids are 2-suited...but this is also more open to a misunderstanding" yes, playable but i would think prone to a mistake where opener forgets and think responder a 1-suiter
What if the double is artificial? Then I still want to play normal system, but double could be converted for penalty. So, I think you need a system which can escape using extra bids of pass and redouble while other bids retain their normal meaning.
Redouble->puppet to 2♣ to escape to long minor
Pass->asks opener to show a 5-card suit, with none opener redoubles
After redouble-> responder passes to play in 1NXX
-> responder bids 4+ card suits up the line till a 4-3 or better fit is found
by no means perfect but relatively simple.
doesnt handle weak 4333 hands very well
unable to penalize opponents with 1N opener having 5 card suit and responder strong
Forgot to mention this apparently.
The runout system I suggested is only valid after a strong Dbl. Whenever opps play an artificial Dbl we try to play system on (unless Dbl is very specific and we have a certain defense against that).
The point of a runout system is to find a playable spot and put pressure on opps so they have a hard time deciding if they have to penalize us, let us play or fight the part score battle. Let us compare:
Pass = suggestion to play: puts tremendous pressure on 4th hand. Responder can pass hoping to go -1, make the contract or even make overtricks. 4th seat can sit when we make or bid when we would go down. And if he bids we may have some juicy penalty.
2X = natural, non forcing: again puts pressure on opps. Although the doubler can also bid in this case, we're in a situation similar to a weak two, while everyone knows we have at least a 7 card fit.
RDbl = sos, scramble into a fit: this is the most flexible way to find a playable spot. It not only suggests spots of our own, it allows opener to show his suit first. Moreover, a 4333 doesn't have a bidding problem (as opposed to systems where 2X shows some 2-suiter, which is played by many pairs).
Compared with:
Redouble = puppet to 2
♣ to escape to long minor: this gives opps lots of room to investigate if they have to penalize or to find their best contract. Opps have several occasions to bid, while we can only signoff in a minor (which usually means they have some fit in the Majors).
Pass = asks opener to show a 5-card suit, with none opener redoubles: this gives you the opportunity to play 1NTxx, however in my experience opps will run away. Also it's not possible to play 1NTx. If you have the impression that 1NT will be borderline, then playing it redoubled is a huge gamble, while playing 1NTx-1 is usually acceptable. The obvious flaw is when opener has a 5 card suit while responder wants to play 1NTxx.

Scrambling into a fit is similar to my immediate RDbl, however you know that opener doesn't have a 5 card suit, which is a plus.
Transfer to Major: instead of signing off in 2M, again you give opps extra space by having to transfer
Note: you have your entire system available. This could be useful on occasion, although I haven't invited or bid games a lot after opps Dbl.
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