Career
Fomina started play chess in Tallin"s Pioneers Palace. During the period from 1971 to 1983 Fomina nine times participated in Union of the Soviet Socialist Republics Women"s Chess Championships. The best result - silver medal in 1975.
In 1976 she shared 8th - 9th place with Milunka Lazarević in Women"s Interzonal (Roosendaal).
Also she had five silver (1973-1974, 1988, 1997, 2007) and eight bronze (1975, 1982, 1984, 1990-1991, 1993-1995) Estonian Women"s Chess Championship medals. Fomina played for Estonia in Chess Olympiads:
In 1992, at first board in the 30th Chess Olympiad in Manila (+5 −3 =5);
In 1994, at second board in the 31st Chess Olympiad in Moscow (+5 −4 =3);
In 1996, at second board in the 32nd Chess Olympiad in Yerevan (+7 −3 =3);
In 1998, at second board in the 33rd Chess Olympiad in Elista (+6 −3 =2);
In 2000, at second board in the 34th Chess Olympiad in Istanbul (+8 −3 =2);
In 2002, at first board in the 35th Chess Olympiad in Bled (+5 −7 =1);
In 2010, at first board in the 39th Chess Olympiad in Khanty-Mansiysk (+1 −7 =0);
In 2012, at second board in the 40th Chess Olympiad in Istanbul (+4 −3 =2);
In 2014, at fourth board in the 41st Chess Olympiad in Tromsø (+5 −3 =0).
Fomina played for Estonia in European Team Chess Championship:
In 1992, at first board in Debrecen (+3 −5 =1);
In 2007, at second board in Heraklion (+2 −3 =3). Tatyana Fomina graduated from secondary school in Tallinn (1971), faculty of law in University of Tartu (1980) and faculty of foreign languages in Tallinn University (2002).
She worked as chess trainer and as legal professional.