Lesson 21   Check the Learning Lesson of the Day Training Test Advice of the Day   Illustration Deal Glossary Hand-out 20.1 It is useless for the moment to launch yourself into a digression attempting to explain that it is better to lead a small card from dummy rather than the 10. Get them to lead a small card "naturally" and insist on the necessity of East playing the Queen. 20.2 With some good pupils, you could here count declarer's certain tricks: four Diamonds, three Spades, and the Ace of Clubs, so eight in all. Then show that a necessary hypothesis for failure is the placing of the Ace of Hearts in West: otherwise you can add a trick to the eight already known by South who therefore has his contract "on the table". 20.3 To high level pupils (from Yr 11) explain why they must play the honours split by showing them the four possible splits: * King left, Queen right. * Queen left, King right. * King and Queen left. * King and Queen right. In the first three cases, one wins by playing the finesse twice, which means you are playing with a 75% chance of success.