She won the European Youth Chess Championships in her age girls group five times, in Băile Herculane 1994, Verdun 1995, Tallinn 1997, Mureck 1998, and Litochoro 1999.

[2] Matnadze finished second, behind Regina Pokorná, in the European Junior Girls Championship in Patras 1999,[3] and third, behind Jovanka Houska and Viktorija Cmilyte, in Avilés 2000.

[5][better source needed] Together with Maia Lomineishvili, Matnadze jointly won the Georgian Women's Championship in April 2002.

[7] She played for Georgian teams NTN Tbilisi and Energy-Investi Sakartvelo in the European Club Cup for Women five times from 2002 to 2006.

[9] After initially cancelling her participation, Matnadze was later convinced to play in the event, but was eliminated by Olga Alexandrova in round one.

She plays in the teams Peona i Peó in Spain, Annemasse in France, Volksbank Halle in the German Bundesliga, and Ankara Demirspor Kulübü in Turkey.

[16] Matnadze has a fascination with Vampires[citation needed] and is the main character in a book by Miguel Alvarez Morales, AnnA La Vampiresa (Spanish Edition) (2012, ISBN 4-871-87663-2).[importance?]