[Fluffy]

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No fancy agreements, 4M to play, 5M invitational, 4NT should be natural but partner will take it as RKCW for diamonds.

Follow up questions will come.

[helene_t]

6♠

[phil_20686]

I'd double now, and would regard this dble as GF, so if your partner responds 4d that is forcing. If partner bids something other than 4d I am going to drive a slam. If he bids 4d I will bid 4S and give up.

[nige1]

Fluffy says "No fancy agreements, 4M to play, 5M invitational, 4NT should be natural but partner will take it as RKCW for diamonds. Follow up questions will come.

I rank
1. Double. Intending to bid 4♠ over 4♦ like phil_20686.
2. 4♠. Fearing bad breaks.
3. 6♠. Brave.

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[Tramticket]

Double. My 3_card club suit should guard against partner passing for penalties.

[Fluffy]

To thse who double here is the follow up:

Spoiler

Partner bids 5♣

[Tramticket]

Now I bid 6S. Am I chicken?

[nige1]

Fluffy, on 2015-October-20, 14:00, said:

To those who double here is the follow up:

Spoiler

Partner bids 5♣

Few will have an agreement about this sequence. So we must assume our expert partner is on our side and try to interpret his intentions. 2 possible meanings:

• Major support and a good hand e.g. ♠ K x x x ♥ K Q x x ♦ A K Q x x ♣ -
• Club control and good ♦s e.g. ♠ K ♥ K x x ♦ A K Q J T x x x ♣ -

Now I rank

• 7N. Landy slam try. (Whatever partner has, he should have a good hand).
• 6N. Ditto but allow some wriggle room.
• 5N. Take Fluffy's advice and transfer the blame.
• 6♣. Ditto.
• 6♠. A practical shot if partner bids with Tramtickets
• Pass. Expose the psych

[rhm]

Fluffy, on 2015-October-20, 14:00, said:

To thse who double here is the follow up:

Spoiler

Partner bids 5♣

5NT (pick a slam)

If partner bids 6♦ I bid 6♠.
If partner bids 6♥ I bid 7♣ and over 7♦ I bid 7♥. This hopefully suggests that I do not know whether we should play 7♥ or 7♠.
If partner bids 6♠ I raise.

[fromageGB]

phil_20686, on 2015-October-20, 06:04, said:

I'd double now, and would regard this dble as GF, so if your partner responds 4d that is forcing. If partner bids something other than 4d I am going to drive a slam. If he bids 4d I will bid 4S and give up.

Do you mean this? If 4♦ is GF, is this not stronger than 5♦? I might drive to a slam over 4♦ but not 5♦.

On the given problem, 5♠

[Fluffy]

What do you think is the best auction on the hand?

I will provide mine, but I don't think it is worth much. IMO 4NT should be natural, but I knew partner didn't intend it that way. I should had also bid 7NT at some point.

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[Tramticket]

Did Spades break 5-1?

[phil_20686]

fromageGB, on 2015-October-21, 08:28, said:

Do you mean this? If 4♦ is GF, is this not stronger than 5♦? I might drive to a slam over 4♦ but not 5♦.

On the given problem, 5♠

No 4d is just what you do when you have opened a wk NT with 3343 or something, and you want to make sure that responder will bid a 5cM if he has one. wk NT opposite 5-4 or even 5-3 in the majors is just so common here that its worth a bid just to transfer the problem back.

[phil_20686]

Fluffy, on 2015-October-22, 09:35, said:

What do you think is the best auction on the hand?

I will provide mine, but I don't think it is worth much. IMO 4NT should be natural, but I knew partner didn't intend it that way. I should had also bid 7NT at some point.

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4N surely showed a good hand with two places to play, so usually 6-4 ish in diamonds and a major. After 6d surely east knows for sure that west has a v good hand with hearts and diamonds, so why not try 7H?