What is "masterstrokes"

Usage examples of "masterstrokes".

It spite of his many failures in the direction of that elusive personage, he still had the ear of the Committee of Public Safety who did not undervalue his real worth, and though, at the special sitting convened for the purpose, several members were inclined to scoff when Chauvelin expounded his plan for the capture of the spies—seeing the number of times that his masterstrokes had ended in failures—nevertheless when it was put to the vote, the majority decided in favour of the plan being carried through, starting with the arrest of the Saint-Lucque woman and her two daughters.