There are $$3$$ matches on the table. Andy and Bob take turns to pick up $$1$$ to $$2$$ matches each time. The person who picks up the last match will be the winner. If both Andy and Bob were to use the best method and Andy wants to win, he should pick up the matches~\uline{~~~~~~~~~~}~. 
Overseas Competition->Knowledge Point->Combinatorics->Strategies and Operations->Game Strategy
Andy should go second. Since Bob must pick up either $1$ or $2$ matches when he begins, there will be either $2$ or $1$ match(es) left. Both results lead to Andy\textquotesingle s victory 