If you have not installed these lessons from BBO, here is a condensed situation. Declarer is looking at 6NT with the diamond suit being A,Q,10,9,8,7. Dummy has 4,3,2 in diamonds. The other 3 suits look okay. The brief hint/solution says you can afford to lose one trick here in order to make the 6NT. I tried finesse and favourable distributions, but no luck. This is a robotic game/lesson; when you try finesse, it makes sure you lose. There must be a way of making it. Can you share your knowledge of how to handle this. Thanks!