[hrothgar]

Relay Responder
♠ AJ973
♥ J
♦ AK96
♣ 632

Relay Asker
♠ KQ2
♥ AQT94
♦ 82
♣ AKJ

[hrothgar]

hrothgar, on 2013-July-27, 14:00, said:

Relay Responder
♠ AJ973
♥ J
♦ AK96
♣ 632

Relay Asker
♠ KQ2
♥ AQT94
♦ 82
♣ AKJ

MOSCITO Auction

3♥ - 4♣
4♦ - 5♣
6♠

4♣ show 8 controls
4♦ starts the scan
5♣ shows 1-2 controls in Hearts and Diamonds, 0-3 controls in Clubs
At this point in time, RA can place RR with AS, AK of Diamonds

RA asker is sure of 10 tricks and knows that there are two finesses available
Furthermore, there is a decent chance that declarer can ruff a long diamond

Further asks won't help. I think that its worth bidding the slam.

So far, this seems like the hardest hand...

[rbforster]

hrothgar, on 2013-July-27, 14:00, said:

Relay Responder
♠ AJ973
♥ J
♦ AK96
♣ 632

Relay Asker
♠ KQ2
♥ AQT94
♦ 82
♣ AKJ

3♥-4♣ QP ask; 8
4♦-4N 1-2 spades, 1-2 diamonds, nothing in clubs
5♣-5♦ only 1 spade (already knew)
5♥-6♣ 2 diamonds, J spade, no J diamonds (so either given hand, or K♥ KQ♦)
6♠

[benlessard]

3H--4C (S kc, 2noQ)
4D--4S (Kd ? yes but no Kc)
4Nt--5C (QD ? --no)

ill check for K of H and stop at 6S


--------------------
idem for method 2

[akhare]

rbforster, on 2013-July-27, 15:15, said:

3♥-4♣ QP ask; 8
4♦-4N 1-2 spades, 1-2 diamonds, nothing in clubs
5♣-5♦ only 1 spade (already knew)
5♥-6♣ 2 diamonds, J spade, no J diamonds (so either given hand, or K♥ KQ♦)
6♠

Ditto

[awm]

... 3♦ (shape)
3♥ - 4♣ (relay for QP, 8)
4♦ - 4♠ (relay, one stop spade, 0 or 2 top diamonds)

Can't be zero diamonds, so Axxxx x AKxx xxx or Axxxx x AQxx Qxx or Axxxx K KQxx xxx. All decent slams but no good grands here.

6♠ - Pass

[straube]

hrothgar, on 2013-July-27, 14:00, said:

Relay Responder
♠ AJ973
♥ J
♦ AK96
♣ 632

Relay Asker
♠ KQ2
♥ AQT94
♦ 82
♣ AKJ

Straube

3♥-4♣ QP ask, 8
4♦-4♠ PCB, odd spade and even diamond
4N-5♣ ask, even club
5♦-6♣ ask, small heart with SA or SQ with SJ
6♠

The 5D ask is probably unnecessary

[sieong]

3♥ - 4♣ (QP? - 8QP)
4♦ - 5♣ (control parity - odd, odd KQJ in ♠, odd KQJ in ♦, even in ♣)

At this point, responder possible hands are: AJxxx j AKxx xxx, AJxxx K AJxx xxx. The first hand with HJ plays better in 6NT. The second one plays better in 6NT except on D lead, in which case it makes when HJ falls in 3 rounds (36%) or C finesse (50%) with multiple squeeze chances after a diamond lead is ducked. I rate it to make about 73% on best lead (68% + 5% squeeze chances). I think 6S is slightly better (makes on 4-3, 5-2 the right direction, and 6-1, but some of the 4-3 / 5-2 requires guessing whether to ruff high), probably around 80%.

Since I won't be able to distinguish between AJxxx J AKxx xxx and AJxxx K AJxx xxx, I will go with 6NT when that happens.

5♦ - 5♠ (PCB - odd in ♥, no ♠T?)
6NT

[Free]

...-3♦ (shape)
3♥-4♣ (QP ask ; 8)
4♦-4NT (start scanning ; 1/2 top honors ♠ and ♦, 0/3 in ♣)
6♠-pass (we know Axxxx-?-AKxx-xxx, but impossible to know about ♥K)

Again it would be useful to know about a singleton top honor. With ♥K we can play grand, I wonder how we can find out about this.

[akhare]

Free, on 2013-July-29, 12:50, said:

...-3♦ (shape)
3♥-4♣ (QP ask ; 8)
4♦-4NT (start scanning ; 1/2 top honors ♠ and ♦, 0/3 in ♣)
6♠-pass (we know Axxxx-?-AKxx-xxx, but impossible to know about ♥K)

Again it would be useful to know about a singleton top honor. With ♥K we can play grand, I wonder how we can find out about this.

PCB bidders were able to rule out the stiff K♥ in this particular case.