mikl_plkcc, on 2025-June-07, 03:07, said:
On board 13, why do I need to switch to ♦10? The auction started with 1♦-(2♠)-X and partner showed a 4-4 ♥ fit, so I thought we needed to cash the ♥AK by playing the ♥A then small.
Comment 1: You are playing IMPs. Your biggest concern is setting the contract.
Comment 2: Your partner opened the bidding.
Between your hand and dummy, you are looking at 23 HCPs.
Partner can't have any points in Clubs.
You hold the Queen of Spades.
Dummy holds the King od Spades.
RHO made a vulnerable jump overcall and almost certainly holds the Ace.
Is there any way that partner has an opening hand without the AQ of Diamonds?
And IF partner holds the AQ of Diamonds, why do you want to end play them rather than punching through the Diamond?
As to why you're leading the 10, if we are in buzzard world and partner doesn't have the Diamond queen, we want them to know that we don't have it.