mikeh, on 2023-November-06, 11:36, said:
I don’t understand the lead of the ace. How can that be better than the queen, even if one hasn’t agreed that the queen requests the Jack. I mean, wtf can opening leader have once the queen holds? Would any declarer known to mankind duck with the spade AK?
As for finding the diamond shift…no. Some hands are just too tough.
I agree with your logic, I just don't think the Q asking unblock of J otherwise count would cross the radar of either player.
With traditional Italian agreements, the K would ask for unblock of any honour otherwise count, but that can no longer be blindly assumed.
AL78, on 2023-November-06, 11:39, said:
If partner makes a weak jump response on a crappy jack high suit, they deserve me to find the wrong switch.
Fully agreed, of course. He also had a chance to make amends by bidding 3
♦ over 3
♣, or perhaps a double of 3NT if that asks partner to lead his own suit.