Hasbro / WIRED Whether you’re forming a Christmas bubble with friends and family or keeping things simple (aka staying home and lounging about in your pyjamas), at some point over the festive period someone will whip out a board game. They’re meant to be a bit of fun, but if we’re being honest with ourselves, there’s nothing quite like smug satisfaction that comes from crushing a relative over the board. So, how can you go from being your family’s perennial loser to a virtuoso strategist and merciless winner? For many of these games, mathematics is the key to victory.