[Cyberyeti]

Can anybody construct a vaguely sensible uncontested auction where the final contract is in the 4th suit bid naturally, bid for the first time at the 6 level. This happened last night to me, successfully. Our auction was weak no trump Acol all 4 card suits for opening bids, but a similar auction will exist in many naturalish systems.

[JLOGIC]

1S 2H
2N 3D
3H 6C
P

or something if responder has a slam forcing 0-5-4-4, opener has 5224 (4C by responder would not be natural it would just be artificial setting hearts).

[JLOGIC]

There was a famous auction once:

2N 3C
3D 3H (smolen)
3N 7C
7D

The 2N opener was notorious for loving to open 2N. Responder took 7D as 6 solid diamonds and passed, opener meant it as choice of grands he had something like HH of spades and HHx of hearts.

[cherdano]

2C 2D
2S 3H
4D 4N
5N 6C
P

[Cyberyeti]

The one we had was:

1♣(4+)-1♥
1N(wide range)-2♣(checkback)
3♠(upper range, 4♠, not 5♣, not 4♦, not 3♥ hence 4234)-6♦

responder was 5-5 in the reds and couldn't think of a sensible way of agreeing diamonds and asking aces, so made what around here is known as a Melvin slam try, bid 6 and tried to make it.

[FrancesHinden]

I'm not sure a piece of system where responder has no way of showing a 5-5 game force once the auction is (i) at the 1NT level and (ii) he's already bid one of his suits is exactly what I would call "sensible"

2C - 2D (waiting or neg)
2NT (FG) - 3C (stayman)
3H (4 hearts) - 3S (4 spades)
3NT - 4D (4 diamonds)
6C - P

opener is, say, Kx AKxx Kx AKQJx and picks up QJxx xx Axxx 10xx opposite

[Cyberyeti]

FrancesHinden, on 2013-May-12, 02:24, said:

I'm not sure a piece of system where responder has no way of showing a 5-5 game force once the auction is (i) at the 1NT level and (ii) he's already bid one of his suits is exactly what I would call "sensible"

2C - 2D (waiting or neg)
2NT (FG) - 3C (stayman)
3H (4 hearts) - 3S (4 spades)
3NT - 4D (4 diamonds)
6C - P

opener is, say, Kx AKxx Kx AKQJx and picks up QJxx xx Axxx 10xx opposite

I could have shown a 5-5 game force over 1N with 3♦ but decided to ask opener's range as I'd have settled for game over 2♠.

On your auction can't responder be 4351/4360.

[FrancesHinden]

Cyberyeti, on 2013-May-12, 03:13, said:

On your auction can't responder be 4351/4360.

Yes, then he'll bid 6D on the latter and 6NT on the former. 6C doesn't set the contract, it's a suggestion.

[FrancesHinden]

Cyberyeti, on 2013-May-12, 03:13, said:

I could have shown a 5-5 game force over 1N with 3♦ but decided to ask opener's range as I'd have settled for game over 2♠.

So you decided to force slam opposite a maximum, and bid game opposite a minimum. Lucky for partner, he didn't have to evaluate his hand any further than simply 'max or min'.

[Cyberyeti]

FrancesHinden, on 2013-May-12, 03:37, said:

So you decided to force slam opposite a maximum, and bid game opposite a minimum. Lucky for partner, he didn't have to evaluate his hand any further than simply 'max or min'.

On other shapes we would have had much more room for science, this was the most expensive response and very precise as to what it showed. Partner had an absolutely typical hand for the bid and we reached a playable but by no means cold slam. We were by no means committed to a slam opposite every maximum, just opposite this one where I wasn't sure 4♦ was natural.

I realise now I wasn't as specific as I should have been in the OP, the intention was that the bid at the 6 level was bid as the final contract in a "You have no alternative, you will pass over it" way.

[Lord Molyb]

1NT - 2♣
2♥ - 3♣
3♠ - 5NT
6♦ - P

3♣ = GF with clubs and 4+ spades
3♠ = 3
5NT offers a choice of slams

1NT opener has 3-4-4-2 and Responder has 4-0-4-5.

[mycroft]

I don't know, I can only think of some of our weirder Keri auctions, like:

1NT-2D!
2H-2NT!
3C!-3H!
3S...6D

but there, 3♠ was a cuebid, setting diamonds as trump (responder is 3=5=4=1 almost certainly, opener has only 2 hearts but particularly good support for diamonds).