Career
In August 2011 Hovhannisyan tied for first place with Dariusz Swiercz in the World Junior Chess Championship in Chennai, placing second on tiebreak. In January 2012 he took second place in the 72nd Armenian Chess Championship. In 2015 Hovhannisyan tied for first, finishing second on tiebreak, with Alexei Shirov in the 5th Riga Technical University Open in Riga.