Description: (Norwegian Chess Grandmaster and Three-Time Norwegian Chess Champion)
Jon Ludvig Hammer is a Norwegian chess player who achieved the title of Grandmaster in 2009. A three-time Norwegian chess champion, Jon Ludvig Hammer played an important role as Magnus Carlsen's main second at the World Chess Championship 2013 in Chennai, India, where the latter became the new world chess champion after defeating the reigning world champion Viswanathan Anand.