There are $$25$$ matches on the table. John and James take turns to remove $$1$$ to $$3$$ matches each time. The person who removes the last match will be the winner. If both of them were to use the best method and John removes first, then~\uline{~~~~~~~~~~}~will win.~ 
Overseas Competition->Knowledge Point->Combinatorics->Strategies and Operations->Game Strategy
$$25\div 4=6\ldots 1$$ John removes $$1$$ match and $$24$$ is a multiple of $$4$$. So, the first player will win the game. 