Magnus Carlsen, the chess grandmaster who has become the public face of the game, was forced into a draw after an intense game played over 6 1/2 weeks — and it only took some 143,000 opponents working together to do it. In a freestyle match that chess.com billed as Magnus vs. The World, Carlsen was pitted against a team consisting of any and every member of the online community who wanted to join. The website said the number of players reached a record 143,000, as people from around the globe rushed to play against the Norwegian chess legend. The game...