[MrAce]

Simon here is what we play to run out of weak NT, or when our strong NT overcall is doubled. Very simple and easy to remember and imho it is very effective too.

Pass- i either wanna play 1 NT dbled or i think this is the place where we will be owned least. Can be strong, we can not REDBL opponents.

RDBL = 1 suiter, pd bids 2♣ and u pass or correct.

2 ♣ = Just like DONT, ♣+any 2 suiter, if it is ♣+major ♣ is longer, with 5 card majors+4♣ it is almost always better to show it as 1 suiter and play 2M for various reasons.

2♦ = Just like DONT, ♦+M, same shape requirements as above.

2♥ = Majors

You can also discuss with pd about 2 ♠, 2NT, 3m and 3M bids for your choice of picture bid hands which are not good/suitable for letting 1 NT doubled but can be as good as game in case there is a fit (wild hands that are not too weak or strong enough to commit to game by themselves, 5-5 6-4 7-4 6-5 hands)

[SimonFa]

MrAce, on 2011-September-17, 23:32, said:

Simon here is what we play to run out of weak NT, or when our strong NT overcall is doubled. Very simple and easy to remember and imho it is very effective too.

Pass- i either wanna play 1 NT dbled or i think this is the place where we will be owned least. Can be strong, we can not REDBL opponents.

RDBL = 1 suiter, pd bids 2♣ and u pass or correct.

2 ♣ = Just like DONT, ♣+any 2 suiter, if it is ♣+major ♣ is longer, with 5 card majors+4♣ it is almost always better to show it as 1 suiter and play 2M for various reasons.

2♦ = Just like DONT, ♦+M, same shape requirements as above.

2♥ = Majors

You can also discuss with pd about 2 ♠, 2NT, 3m and 3M bids for your choice of picture bid hands which are not good/suitable for letting 1 NT doubled but can be as good as game in case there is a fit (wild hands that are not too weak or strong enough to commit to game by themselves, 5-5 6-4 7-4 6-5 hands)

Some interesting ideas, thanks.

Having given it a lot more thought I think Houdini is a better system, but in the end a downside of weak NT is you are always exposed to going for a big number but given so many play it the upside pre-emptive advantage probably out weighs it.

[Cyberyeti]

As other posters have said, forced redouble is very common, the variant I play:

Redouble = single suited
2♣/♦/♥ that suit and the one immediately above
pass forces redouble

over openers redouble

pass to play
2♣ = ♣+M
2♦ = ♦/♠

2♠ and 2N whether used before or after the XX are inv/GF 5-5+s with enough points to sit the double but the wrong shape.

[MrAce]

Forced rdbl is something i played...a long time infact.

The fact is the frequency of hands where your safest heaven is to play 1NT doubled is way too much to play a convention that disables you to do so. But that maybe my own coinsidential experience.