Lovera, on 2022-July-01, 07:52, said:
Why is there still no comment on my bidding line (explained in # 15 and further clarified in # 18) ?
Since you nicely asked
1. A cursory search of Unassuming Cue Bid shows that 3+ card support for opener's overcall suit is specified. A close inspection of this hand shows Qx as support which is not 3+ card support. Partner may think spades is a good suit to play in when it is not. What are you going to do when partner jumps to 4
♠ and you haven't showed diamonds yet?
2. You are guilty of double dummy bidding. It's easy enough to see double dummy that with near perfect cards and a key club void, 7
♦ is on a finesse on 23 HCP. Give West a more modest shape like 5332 or 5422 and do some simulations.
3. Bidding 3
♣ instead of 2
♦ means you can't introduce diamonds until the 4 level. I doubt that any high level pairs play that a new bid of 4
♦ shows a solid suit and denies 3+ card spade support. Most would play 4
♦ as a cue bid showing a big hand with spade support since you didn't start with 2
♦.
++++++++++++++++++
Thanks Pilowsky. Perhaps, you should agree that, after an overcall. change-of-suit by advancer is forcing. Then you might have an auction like that on the left.
John Matheson suggests you should be reluctant to cue shortages in partner's suit, so 3♠, by East, should show an honour.
Edited to change response to 2♦ rather than 3♦