Lesson 16
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16.1

With good pupils you can ask the following question: "Was there not a way for East to prevent the declarer from ducking?"
The reply being very difficult to find with the cards on display, ask them, whilst hiding East and West's hands, what they would do if East laid the Jack on the first trick. To help them ask the question: "If Est lays the Jack, can he have the Ace?" and congratulate those who reply: "no, because as third player he would have played high".
End by showing that the declarer, in general, can also guess in this way the position of certain high cards …but not always, as he can't see the hands!!

16.2 The only right answer to be accepted is: "to help my partner to establish his suit or to take the trick"
16.3 Don't begin the action until you have checked West's lead. Explain that, against a grand slam, the opponents having most often almost the points and numerous solid Trumps, you must make as neutral a lead as possible and that a lead in Trumps is what is required most of the time (except when you possess a singleton or an honour).
16.4 Don't forget to ask when and why there is an automatic discard but don't employ the term "extra-winning" (there's no hurry…).
16.5 To Year 11 pupils (and above) tell them that the split of a residual six cards in 84% of cases is 3 - 3 or 4 - 2.
16.6 Then ask your pupils what would have happened if the Diamonds had been very badly split (5 - 1 or 6 - 0). Show them that South still had a chance of succeeding with the Club finesse.