My silly 2/1 questions on route to learning it

[E. Blackadder]

Originally Posted by kmbrunskill

bidding goes

2c-2d(waiting)-2nt-3h(transfer)-3s-4nt(invite to slam, only 5 spades)-5s

Is 5s a signoff showing preference? or an invite to 7s and forcing to 6?

My guess was the latter, but the robot pulled it on me today and I wasn't sure. Although it's a bit confusing considering his hand is limited after 2nt rebid.

How's the robot supposed to know 4NT isn't some kind of ace-ask.

[kmbrunskill]

Robot plays that as a quant invite.

If I had 6 hearts and wanted to ace ask, I would texas transfer. If I wanted to ace ask for nt, 4c is gerber there (according to robot's agreement)

I lied accidentally. It doesn't think 4C is gerber.

The robot has no ace asking convention in that situation then, except for bidding a new suit then bidding 4NT if partner chooses to play in spades.