Feller was given a two-year and nine months suspension, Cyril Marzolo was given a one-year and six-month suspension, and Arnaud Hauchard was given a three-year suspension by the FIDE Ethics Commission. Unlike other cases, each player involved was a legitimate Grandmaster or International Master. None of the other players on the team knew of this or were involved. The scandals of Borislav Ivanov were cause célèbre in the chess world in 2012 and 2013, with cheating first being alleged at the Zadar Open, and then in Kyustendil. He was banned for four months by the Bulgarian Chess Federation, though this ban was overturned due to procedural defects, and was not based upon the cheating allegations, but rather Ivanov's rude behavior toward his accusers. After various interludes, he was banned permanently by the Bulgarian Chess Federation. The incidents were significant as they were one of the first times that statistical methods were used to analyze move-matching with computer programs, even though in the end such evidence was never used in a formal legal procedure. At the 2014 Iasi Open, Wesley Vermeulen was caught cheating by consulting a mobile phone in the toilet, admitted his offense, and was eventually banned for one year by both the Dutch chess federation and FIDE. In April 2015, Georgian grandmaster Gaioz Nigalidze was banned from the Dubai Open Chess Tournament after officials discovered him consulting a smartphone with chess software in the washroom during a game. He was later stripped of his grandmaster title and banned from competition for three years, though he was allowed to keep his International Master title. In February 2016, Sergey Aslanov was expelled from the Moscow Open, for a smartphone in the toilet, hidden under a loose tile behind a drainpipe. He declared himself to be guilty of error but not a crime, and was only suspended for one year. In July 2019, Igors Rausis was caught cheating in the Strasbourg Open, using a mobile phone in the bathroom. He admitted to having cheated, and announced his retirement from chess. On October 1, 2020, Wesley So accused Tigran L Petrosian of cheating in his semi-final and final games during the Chess.com 2020 PRO Chess League. So was rated eighth-highest player in the world at the time. Petrosian responded to So on Twitter with childish taunts. Chess.com found that Petrosian and by extension his team, the Armenia Eagles, had violated fair play