Tiviakov won the
World Under-18 Championship in 1990 in
Singapore. He was awarded the Grandmaster title in 1991. Tiviakov won the
Dutch Chess Championship in 2006, 2007 and 2018. In 2008, in
Plovdiv, Bulgaria he won the
European Individual Chess Championship. Tiviakov won the
Politiken Cup in
Helsingør, Denmark in July 2008 on tiebreak after scoring 8/10. In 2009 he won the 13th Unive Tournament in
Hoogeveen. In 2011 he came first in the Fagernes Chess Festival, in the 5th
Leiden Chess Tournament and in the First
Panama Chess Open. In 2015 Tiviakov won the 24th
Paul Keres Memorial Rapid Tournament in
Tallinn. His first
Olympiad appearance was for Russia at the
Moscow event in 1994, when he took home a gold medal in celebration of the team's winning performance. He played for the Dutch team at each of the events held from 2000–2006, with an overall record of +14 −2 =33 (62.2%). At the
European Team Chess Championships, he has earned three gold medals (two team and one individual) for his contribution to the successful Dutch teams of 2001 (
León) and 2005 (
Gothenburg). At León, he registered a 77.8% score. Tiviakov and
Bogdan Lalic both claim to have played
a previous record 110 consecutive tournament games at classical time controls without losing, although neither player faced exclusively elite-level opponents during their unbeaten streaks and faced predominantly a mix of weaker professional and club level players while playing open tournaments. Tiviakov's streak occurred between 28 October 2004 and 27 September 2005. The current record belongs to
Magnus Carlsen (+42, =83), who went unbeaten across 125 consecutive games between 31 July 2018 and 9 October 2020.. While still holding the record, Tiviakov said
Ding Liren's 100 consecutive games without a loss against elite-level opponents in 2017–2018 was a comparison of
apples and oranges. == References ==