Honeymoon Whist

[Jonny5]

This is a card game played with two players. When you deal you show the top card to the other player, and they get to choose either that card, or take the next card blind. Then you get to look at the next card and choose it or get the next one blind. Continue until all cards are dealt out. It is then played like whist (bridge, spades etc) where you must follow suit, and if not can play either a trump suit and win the trick, or an off suit and lose the trick. Each trick is won by the highest card of the suit that is led, or by the highest trump. You get one point for every trick you take over 6.

Based on probabilities, what cards should you say yes to, what cards should you say no to. In order to eliminate too much emphasis on the cards you have seen, assume this is the first card shown to you. (example, if you already have a non-trump King, I believe you should automatically say No to an non-trump Ace.)

Question: Spades is trump, you are shown the first card. Should you

a) Say Yes or No to the Ace of Diamonds
b) Say Yes or No to the King of Hearts
c) Say Yes or No to the Two of Spades