Dee ihe na-esote paragraf a - FIDE nyere Nielsen utu aha International Master na 1991 na nke Grandmaster na 1994. O meriri Danish Chess Championship ugboro ise: na 1996, 1999, 2001, 2003, na 2008. Ọ gbara bọọlụ maka mba Denmark n'egwuregwu Chess Olympiad asaa, ugboro atọ n'elu bọọdụ, na nsonaazụ nke 60.1% (+24−10=35). O ritere ihe nrite ọlaedo n'otu onye na bọọdụ nke atọ na Moscow 1994
Ọ dị mma.