Hardest shot is the flop shot a from bare lie, over a long green side bunker to a tiered green that runs away from you towards a water hazard with a steep sloping short fringe.
That's quite a scenario. Can't say I've ever faced that one.
What about hitting a drive after you've been blindfolded and spun round three times to a fairway flanked by trees and water in a a left to right gale forced wind. Tricky.