TRICK 2.--The dealer after taking the force leads trumps in order to
bring in the established spade suit.
TRICK 4.--This is the critical point in the hand. A can continue to
force the strong trump hand, but as the trumps are evidently all
established in the dealer’s hand, it would enable the dealer to take
out the remaining trumps and make the spades.
This situation is interesting and deserves careful study. It is too
late to force when the adversary holds an established suit against
you. You must make what you can in the other suits before giving up
the lead.
TRICK 5.--A overtakes the queen of clubs in order to continue the
lead.
TRICK 7.--B discards his only spade.
TRICK 8.--A gives B the opportunity to make his losing trump.