In each of the following cases, which card would you lead...
Q with J-10-4-A?
A The 4. Classically best and safest in almost all circumstances.
Q with 8-8-7-6?
A An 8. If dealer plays 8 for 2, you score 6 with an 8 for pair royal; if he plays 7 for 2 (a 15), you counter with 7 for 2, or with 6 for 3.
Q with K-K-Q-3?
A A king. If he pairs you will pair royal and also make a possible go. You are playing for the go possibility if he should play any 10-point card, and you have a fair chance of controlling first go if he plays any card from 5 to 8.
Q with K-5-5-A?
A The king. The 5 will almost surely give him a 15; the ace is your hope of a go or a 31.
In each of the following cases, which card would you play in response to the lead by N (non-dealer)?