Born in
Moscow, Guseinov started playing chess under the guidance of
Shahin Hajiev. He lived in his native city and played for Russia from 1994 to 1998. In 1994, he won the
European under-10 championship in
Băile Herculane. In 2008 tied for 1st–8th with
Nigel Short,
Vadim Milov,
Aleksej Aleksandrov,
Baadur Jobava,
Alexander Lastin,
Tamaz Gelashvili and
Farid Abbasov in the President's Cup in
Baku. In April 2010, Guseinov tied for 1st-8th place in the 12th
Dubai Open Chess Championship with
Viorel Iordachescu,
Hrant Melkumyan,
Sergey Volkov,
Eduardo Iturrizaga,
David Arutinian,
Aleksej Aleksandrov and
Tornike Sanikidze. Guseinov won the Ugra Governor's Chess Blitz Cup in 2011. In 2013 he tied for 1st–3rd with
Igor Kurnosov and Aleksandr Shimanov in the
Nakhchivan Open. Guseinov was nominated by FIDE president to compete in the
Chess World Cup 2015 in Baku. He knocked out
Maxim Matlakov and
David Navara in the first two rounds before losing to
Ding Liren in round 3. Guseinov won the Sitges Open in 2018 by scoring 7.5/9 points. ==Team competitions==