For The Win
AoPS For The Win! (FTW) is a fun way to practice your math skills while competing with other players. There are two types of games, the normal game where you can compete against many players and the Countdown game, which is a head-to-head competition modeled after the MATHCOUNTS® Countdown round. In cooperation with MATHCOUNTS®, many of the problems in FTW are drawn from past MATHCOUNTS® contests. There are currently about 7600 problems in FTW.
This version of FTW has been deactivated. Visit the new one here.