French Women Grandmaster (1998) and International Master (2005) born in Bulgaria. French Women Champion in 2007 and vice Champion in 2003. European U20 girls champion in 1994. She is married to the French International Master Didier Collas.
Best results: Winner of the 1st Mediterranean women championship 2003.
A participant in 7 Women Olympiads for Bulgaria and France. Silvia was awarded a gold medal at the French Club championship in 2006 for the best performance at board 9th.