[pigpenz]

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it would seem GIB should make effort to sign off in 5NT, not bid a slam off 2 aces, I understand its not the best
thing in the world using 4NT for keycards in the minors but thats what we have.

[manudude03]

pigpenz, on 2012-February-29, 11:57, said:

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it would seem GIB should make effort to sign off in 5NT, not bid a slam off 2 aces, I understand its not the best
thing in the world using 4NT for keycards in the minors but thats what we have.

5NT isn't a signoff, it's asking for Kings as a grand slam try.

[pigpenz]

I realize that but 5♠ would force 5NT since 5♥ would have been queen ask

[BunnyGo]

pigpenz, on 2012-February-29, 12:01, said:

doh, I realize that but 5♠ would force 5NT since 5♥ would have been queen ask

I don't know what system GIB plays here, but I would interpret 5♠ as a grand slam try.

[pigpenz]

so were beginning to say that ace asking and all bids afterwards not asking for queen of trumps are unchartered waters with GIB

[ArtK78]

There is no sign off in 5NT after RKCB. Maybe that will be an incentive for those whose only slam try is 4NT to think ahead.

In standard Blackwood, 5♠ (assuming it is not the trump suit) is a way to get partner to stop in 5NT. This leads to the rather inelegant contract of 5NT off two aces. But that contract is usually better than getting to slam off two cashing aces.

[manudude03]

pigpenz, on 2012-February-29, 12:01, said:

I realize that but 5♠ would force 5NT since 5♥ would have been queen ask

GiB plays that 5S is a cuebid (don't ask...)

[pigpenz]

ok, thanks just curious as to what GIB plays since when you play with him you have to play his way, ouch
though there does seem like there could be some fixing on this issue, since GIB 4NT not me I have to assume he knows what he is doing

[johnu]

ArtK78, on 2012-February-29, 12:26, said:

There is no sign off in 5NT after RKCB. Maybe that will be an incentive for those whose only slam try is 4NT to think ahead.

In standard Blackwood, 5♠ (assuming it is not the trump suit) is a way to get partner to stop in 5NT. This leads to the rather inelegant contract of 5NT off two aces. But that contract is usually better than getting to slam off two cashing aces.

I don't know why 5♠ in this sequence isn't also an attempt to sign off in 5NT after RKCB. Unless you are playing kickback, you are going to run into missing too many aces and being beyond 5 of your trump suit at least some of the time, and bidding 6 missing 2 aces does not have a great EV. Maybe 5NT doesn't have great EV either but if 4NT bidder is trying to get to 5NT, it should be a lot better than slam missing 2 aces.

Coincidentally, in the JEC team match last night, the same RKCB auction came up with clubs as trump and the 5♦ response revealing 2 aces were missing. JEC tried 5♠ trying to get partner to sign off in 5NT but partner was not on same wavelength so they ended up in 6♣ doubled down 1.

[chasetb]

There is very little good slam bidding with GIB (especially in the minors, but that's a problem with most non-expert partnerships playing 2/1), most of the time I just bid it directly or pass out 4.