Analysis:
We could draw trumps in three rounds and eventually make two remaining trumps separately, gaining the required ten tricks.
But we could instead draw just two trump rounds and cross-ruff the minors. This would gain us an extra trump trick, but give the opponents a trump trick. We still make ten tricks.
However, this second line has better chances of an overtrick. Win the first trick and draw two rounds of trumps with the king and queen, leaving a master trump in each hand. Then play on the minors and cross-ruff them. As the cards lie, we will make eleven tricks. East has the remaining trump but cannot use it to over-ruff in diamonds because she has four of them. (And even with only three she couldn’t over-ruff, because our second ruff would be with a master.) Neither can she gain by ruffing the third club round, because we will over-ruff. (Or we could instead discard a heart from hand and subsequently make a heart ruff instead of a club ruff.)
There would be similar chances if West had the outstanding trump. This time our master trump in hand helps when West starts with three clubs. Basically, there are reasonable chances of opponents playing their trump without gaining.
Opportunities for an overtrick with the first line are limited to a squeeze when one opponent has length in both minors, and even then it requires careful play.
