[Ai Hao]

You deal and passed, your pd open 1♣, RHO overcalls 1♦.

Now is your bid with:

♠QT97
♥JT4
♦J9
♣K543

[Bbradley62]

This is a matter or partnership agreement; some play this as a negative double, others bid 1♠.

[mike777]

1s

I hope this is normal

[whereagles]

I think most bidding books recommend 1♠ as 4+ cards and dbl as 44 majors here.

Under that, 1♠ is the bid.

[Zelandakh]

Bbradley62, on 2014-April-12, 22:34, said:

This is a matter or partnership agreement; some play this as a negative double, others bid 1♠.

The third option is to play transfers, so X = 4+ hearts and 1♥ = 4+ spades. Whichever method is in use, the correct call is the one that shows 4 spades and not 4 hearts.

[P_Marlowe]

If 1H / 1S promise 5 carder, you have to double, this is not standard,
but it gets played.

If 1H / 1S only promise 4+, you have a bid to show your hand, use it.

With kind regards
Marlowe

[steve2005]

P_Marlowe, on 2014-April-22, 06:42, said:

If 1H / 1S promise 5 carder, you have to double, this is not standard,
but it gets played.

If 1H / 1S only promise 4+, you have a bid to show your hand, use it.

With kind regards
Marlowe

While I think doubling on 4-3 hand like this would probably turn out ok, if your 4-2/4-1 you cant double so 1♥/1♠ can only promise 4 cards so you might as well have double as 4-4

[Zelandakh]

steve2005, on 2014-April-22, 12:44, said:

While I think doubling on 4-3 hand like this would probably turn out ok, if your 4-2/4-1 you cant double

Why not? This is not dissimilar to a form of Montreal Relay.

[steve2005]

Zelandakh, on 2014-April-23, 08:42, said:

Why not? This is not dissimilar to a form of Montreal Relay.

bidding goes 1♣-1♦-dble-3♦or4♦ now what happens if your 1♠-4♥ or 4♠-1♥?

[mikeh]

It is normal, in my experience, for responder to bid 1♠ here.

I find the idea that responder should negative double to be silly. As is often the case for such suggestions, the people who advance the idea seem never to really think about what happens next.

This entails considering LHO passing or raising the overcall to the 2 or even 3 level. Now partner bids some number of hearts. Please describe how comfortable you are at this point.

By contrast, if you bid 1♠, which in standard methods shows 4+, you are well-placed because, whatever happens next, you haven't misled your partner about your hand.

If you argue that your negative double systemically contains 4-3 hands, then you are going to be rolling the dice a great deal as opener, since presumably the double could still be 4-4. It isn't playable, imo, to deliberately create a situation in a contested auction in which opener has to guess as to whether a fit exists.

[Zelandakh]

steve2005, on 2014-April-22, 12:44, said:

While I think doubling on 4-3 hand like this would probably turn out ok, if your 4-2/4-1 you cant double

Why not? This is not dissimilar to a form of Montreal Relay.

[akwoo]

steve2005, on 2014-April-23, 09:13, said:

bidding goes 1♣-1♦-dble-3♦or4♦ now what happens if your 1♠-4♥ or 4♠-1♥?

You lose on this auction playing that double shows 4 of either major.

On the other hand, since your 1♠ bid shows 5, when the auction goes 1♣-1♦-1♠-3♦or4♦, opener is able to compete much more accurately.

I don't know whether you lose more than you gain, and it might depend both on form of scoring and on which situations your partnership needs more system support rather than having good intuitive judgement despite lack of information.