Jon Ludvig Hammer

Jon Ludvig Hammer
Hammer at the 2007 Norwegian Championship at Hamar
Country	Norway
Born	(1990-06-02) 2 June 1990 (age 26) Bergen
Title	Grandmaster (2009)
FIDE rating	2621 (April 2017)
Peak rating	2705 (February 2016)

Jon Ludvig Nilssen Hammer (born 2 June 1990 in Bergen) is a Norwegian chess Grandmaster (GM). He completed all the requirements for the GM title in the beginning of 2009 and was awarded the title in March 2009. He was Norwegian Chess Champion in 2013. Hammer was the main second for Magnus Carlsen in the World Chess Championship 2013.

In the 38th Chess Olympiad in Dresden, Hammer represented Norway as the substitute player (number five on the team), played in all rounds except the first, and scored +4−2=4.

In 2007, Hammer completed all requirements for the International Master title. Hammer gained his first GM norm in the Cappelle-la-Grande Open in 2007, the second in Denmark in 2008, and a third in European Chess Club Cup later that year. The short length of those tournaments, however, meant he needed a fourth norm to gain the GM title. This norm was achieved when Hammer won outright a jubilee tournament at Gjøvik arranged at the end of 2008 and the beginning of 2009. In the final round against Mateusz Bartel, Hammer would secure his Grandmaster title with a draw. In spite of this, he eschewed several opportunities for a perpetual check, and successfully took aim at sole first place.

Hammer scored a 2792 rating performance on Norway's top board during the 2009 European Team Chess Championship in Novi Sad, where his +4−0=5 score made him one of the top individual scorers.

In 2011, Hammer suffered setbacks in the "B" section of the Tata Steel Chess Tournament, and the Aeroflot Open. He rebounded with a good result in the Reykjavik Open, where he finished with 7/9, and in 5th place on tiebreaks. As the best Nordic player, Hammer became Norway's first Nordic Chess Champion since Simen Agdestein in 1992.