72nd Cannes Film Festival - Photocall for the manga "Blitz" - Cannes, France, May 18, 2019. Former world chess champion Garry Kasparov poses. REUTERS/Stephane Mahe 

FILE PHOTO: Russian satirist Viktor Shenderovich speaks in a court building after he was detained protesting in support of opposition leader Garry Kasparov in Moscow, Russia November 29, 2007. REUTERS/Grigory Dukor/File Photo 

Garry Kasparov speaks during Web Summit, Europe's largest technology conference, in Lisbon, Portugal, November 3, 2021. REUTERS/Pedro Nunes 

72nd Cannes Film Festival - Photocall for the manga "Blitz" - Cannes, France, May 18, 2019. Former world chess champion Garry Kasparov poses. REUTERS/Stephane Mahe 

72nd Cannes Film Festival - Photocall for the manga "Blitz" - Cannes, France, May 18, 2019. Former world chess champion Garry Kasparov poses. REUTERS/Stephane Mahe 

72nd Cannes Film Festival - Photocall for the manga "Blitz" - Cannes, France, May 18, 2019. Former world chess champion Garry Kasparov poses. REUTERS/Stephane Mahe 

72nd Cannes Film Festival - Photocall for the manga "Blitz" - Cannes, France, May 18, 2019. Former world chess champion Garry Kasparov poses. REUTERS/Stephane Mahe 

72nd Cannes Film Festival - Photocall for the manga "Blitz" - Cannes, France, May 18, 2019. Former world chess champion Garry Kasparov poses. REUTERS/Stephane Mahe 

72nd Cannes Film Festival - Photocall for the manga "Blitz" - Cannes, France, May 18, 2019. Former world chess champion Garry Kasparov poses. REUTERS/Stephane Mahe 

Garry Kasparov, former World Chess Champion and his wife Daria Tarasova pose in Berlin, Germany, February 25, 2016 as guests for the awards ceremony of the newly established Axel Springer Award. Facebook founder and CEO Mark Zuckerberg is the first to receive the award at a ceremony on Thursday. REUTERS/Kay Nietfeld/Pool 

Former world chess champion and political activist Garry Kasparov (R) and Madina, daughter of exiled dissident Kazakh oligarch Mukhtar Ablyazov, attend a news conference at a lawyer's office in Paris, October 16, 2014. The court in Lyon will re-examine on Friday a Russian extradition request for jailed Kazakh tycoon Mukhtar Ablyazov, accused of embezzling up to $6 billion from his former bank BTA. REUTERS/Philippe Wojazer (FRANCE - Tags: POLITICS CRIME LAW BUSINESS) 

Former world chess champion and political activist Garry Kasparov (R) and Madina, daughter of exiled dissident Kazakh oligarch Mukhtar Ablyazov, attend a news conference at a lawyer's office in Paris, October 16, 2014. The court in Lyon will re-examine on Friday a Russian extradition request for jailed Kazakh tycoon Mukhtar Ablyazov, accused of embezzling up to $6 billion from his former bank BTA. REUTERS/Philippe Wojazer (FRANCE - Tags: POLITICS CRIME LAW BUSINESS) 

Former world chess champion and political activist Garry Kasparov (R) and Madina, daughter of exiled dissident Kazakh oligarch Mukhtar Ablyazov, attend a news conference at a lawyer's office in Paris, October 16, 2014. The court in Lyon will re-examine on Friday a Russian extradition request for jailed Kazakh tycoon Mukhtar Ablyazov, accused of embezzling up to $6 billion from his former bank BTA. REUTERS/Philippe Wojazer (FRANCE - Tags: POLITICS CRIME LAW BUSINESS) 

Former world chess champion and political activist Garry Kasparov (R) and Madina, daughter of exiled dissident Kazakh oligarch Mukhtar Ablyazov, attend a news conference at a lawyer's office in Paris, October 16, 2014. The court in Lyon will re-examine on Friday a Russian extradition request for jailed Kazakh tycoon Mukhtar Ablyazov, accused of embezzling up to $6 billion from his former bank BTA. REUTERS/Philippe Wojazer (FRANCE - Tags: POLITICS CRIME LAW BUSINESS) 

Former world chess champion and political activist Garry Kasparov (R) and Madina, daughter of exiled dissident Kazakh oligarch Mukhtar Ablyazov, attend a news conference at a lawyer's office in Paris, October 16, 2014. The court in Lyon will re-examine on Friday a Russian extradition request for jailed Kazakh tycoon Mukhtar Ablyazov, accused of embezzling up to $6 billion from his former bank BTA. REUTERS/Philippe Wojazer (FRANCE - Tags: POLITICS CRIME LAW BUSINESS) 

Former world chess champion and political activist Garry Kasparov attends a news conference at a lawyer's office in Paris, October 16, 2014. The court in Lyon will re-examine on Friday a Russian extradition request for jailed Kazakh tycoon Mukhtar Ablyazov, accused of embezzling up to $6 billion from his former bank BTA. REUTERS/Philippe Wojazer (FRANCE - Tags: POLITICS CRIME LAW BUSINESS) 

Former world chess champion and political activist Garry Kasparov (R) and Madina, daughter of exiled dissident Kazakh oligarch Mukhtar Ablyazov, attend a news conference at a lawyer's office in Paris, October 16, 2014. The court in Lyon will re-examine on Friday a Russian extradition request for jailed Kazakh tycoon Mukhtar Ablyazov, accused of embezzling up to $6 billion from his former bank BTA. REUTERS/Philippe Wojazer (FRANCE - Tags: POLITICS CRIME LAW BUSINESS) 

Former world chess champion and political activist Garry Kasparov (R) and Madina, daughter of exiled dissident Kazakh oligarch Mukhtar Ablyazov, attend a news conference at a lawyer's office in Paris, October 16, 2014. The court in Lyon will re-examine on Friday a Russian extradition request for jailed Kazakh tycoon Mukhtar Ablyazov, accused of embezzling up to $6 billion from his former bank BTA. REUTERS/Philippe Wojazer (FRANCE - Tags: POLITICS CRIME LAW BUSINESS) 

World chess champion turned opposition activist Garry Kasparov (R) and Madina, daughter of exiled dissident Kazakh oligarch Mukhtar Ablyazov, attend a news conference at a lawyer's office in Paris, October 16, 2014. The court in Lyon will re-examine on Friday a Russian extradition request for jailed Kazakh tycoon Mukhtar Ablyazov, accused of embezzling up to $6 billion from his former bank BTA. REUTERS/Philippe Wojazer (FRANCE - Tags: POLITICS CRIME LAW BUSINESS) 

Opposition leaders Boris Nemtsov (L, first row), Ilya Yashin (3d L, first row ), Garry Kasparov (C, second row) take part in the "March of Millions" protest rally in Moscow, September 15, 2012. Protesters chanting "Russia without Putin" began marching through Moscow on Saturday in a protest seen as a test of the opposition's ability to mount a sustained challenge to President Vladimir Putin. REUTERS/Mikhail Voskresensky (RUSSIA - Tags: POLITICS CIVIL UNREST)

Former world chess champion and opposition leader Garry Kasparov speaks to the media after walking out of a court building in Moscow, August 24, 2012. Kasparov was detained during the trial of three members of the Russian punk band Pussy Riot outside a court building on August 17 and was later summoned to appear before court, according to local media. REUTERS/Sergei Karpukhin (RUSSIA - Tags: POLITICS CRIME LAW CIVIL UNREST) 

Former world chess champion and opposition leader Garry Kasparov (L, front) arrives to attend a court hearing in Moscow August 24, 2012. Kasparov was detained during the trial of three members of the Russian punk band Pussy Riot outside a court building on August 17 and was later summoned to appear before court, according to local media. REUTERS/Sergei Karpukhin (RUSSIA - Tags: POLITICS CRIME LAW CIVIL UNREST ENTERTAINMENT) 

Former world chess champion and opposition leader Garry Kasparov speaks to the media before attending a court hearing in Moscow August 24, 2012. Kasparov was detained during the trial of three members of the Russian punk band Pussy Riot outside a court building on August 17 and was later summoned to appear before court, according to local media. REUTERS/Sergei Karpukhin (RUSSIA - Tags: POLITICS CRIME LAW CIVIL UNREST ENTERTAINMENT) 

Former world chess champion and opposition leader Garry Kasparov arrives to attend a court hearing in Moscow August 24, 2012. Kasparov was detained during the trial of three members of the Russian punk band Pussy Riot outside a court building on August 17 and was later summoned to appear before court, according to local media. REUTERS/Sergei Karpukhin (RUSSIA - Tags: POLITICS CRIME LAW CIVIL UNREST ENTERTAINMENT) 

Police detain former world chess champion and opposition leader Garry Kasparov (C) during the trial of the female punk band "Pussy Riot" outside a court building in Moscow, August 17, 2012. A Russian judge found three women from the punk band Pussy Riot guilty of hooliganism motivated by religious hatred on Friday for staging an anti-Kremlin protest on the altar of Moscow's main Russian Orthodox church. REUTERS/Tatyana Makeyeva (RUSSIA - Tags: CRIME LAW POLITICS RELIGION CIVIL UNREST) 

Police detain former world chess champion and opposition leader Garry Kasparov (C) during the trial of the female punk band "Pussy Riot" outside a court building in Moscow, August 17, 2012. A Russian judge found three women from the punk band Pussy Riot guilty of hooliganism motivated by religious hatred on Friday for staging an anti-Kremlin protest on the altar of Moscow's main Russian Orthodox church. REUTERS/Tatyana Makeyeva (RUSSIA - Tags: CRIME LAW POLITICS RELIGION CIVIL UNREST) 

Police detain former world chess champion and opposition leader Garry Kasparov (C) during the trial of the female punk band "Pussy Riot" outside a court building in Moscow, August 17, 2012. A Russian judge found three women from the punk band Pussy Riot guilty of hooliganism motivated by religious hatred on Friday for staging an anti-Kremlin protest on the altar of Moscow's main Russian Orthodox church. REUTERS/Tatyana Makeyeva (RUSSIA - Tags: CRIME LAW POLITICS RELIGION CIVIL UNREST) 

Former world chess champion and opposition leader Garry Kasparov (C) talks to people at a protest camp, who are demonstrating against Russian President Vladimir Putin's presidency, after moving to a new location near the Barrikadnaya (Barricade) metro station from the site at Chistiye Prudy park, in central Moscow, May 16, 2012. Russian riot police broke up an Occupy-style protest against Putin on Wednesday, forcing dozens of people out of a central Moscow park where they had staged a sit-in round-the-clock for a week and detaining at least 15. Police converged on the site at Chistiye Prudy park at about 5:30 a.m. (0130 GMT) and told some 50 people who had spent the night to leave, citing a court order issued on Tuesday requiring them to clear the area. REUTERS/Sergei Karpukhin (RUSSIA - Tags: POLITICS CIVIL UNREST) 

Prominent anti-corruption blogger Alexei Navalny (L) speaks with opposition leader Garry Kasparov during a protest demanding fair elections in central Moscow March 5, 2012. Thousands of protesters chanting "Russia without Putin" took to the streets of Moscow and St Petersburg on Monday to challenge Vladimir Putin's victory in a presidential election which international monitors said was unfair. REUTERS/Sergei Karpukhin (RUSSIA - Tags: POLITICS ELECTIONS CIVIL UNREST)

Opposition leaders Garry Kasparov (L), Alexey Navalny (C) and Sergei Udaltsov (R) hold a banner during an opposition protest in St.Petersburg February 25, 2012. Thousands of demonstrators rallied in Russian Prime Minister Vladimir Putin's hometown of St Petersburg on Saturday, to demand his resignation before a presidential vote next week. REUTERS/Alexander Demianchuk (RUSSIA - Tags: ELECTIONS CIVIL UNREST) 

Opposition leaders Garry Kasparov (2nd L), Alexey Navalny (3rd L) and Sergei Udaltsov (4th L) hold a banner during an opposition protest in St.Petersburg February 25, 2012. Thousands of demonstrators rallied in Russian Prime Minister Vladimir Putin's hometown of St Petersburg on Saturday, to demand his resignation before a presidential vote next week. Banner reads "Russia without a way". REUTERS/Alexander Demianchuk (RUSSIA - Tags: ELECTIONS POLITICS CIVIL UNREST) 

Prominent anti-corruption blogger Alexei Navalny (L) listens to opposition leader Garry Kasparov during a meeting of the organisational committee for a forthcoming opposition protest in Moscow January 31, 2012. The protest, similar to mass protests organised after a parliamentary election in December, is planned for February 4. REUTERS/Anton Golubev (RUSSIA - Tags: POLITICS ELECTIONS CIVIL UNREST) 

Prominent anti-corruption blogger Alexei Navalny speaks to opposition leader Garry Kasparov (L) before the start of a meeting of the organisational committee for a forthcoming opposition protest in Moscow January 31, 2012. The protest, similar to mass protests organised after a parliamentary election in December, is planned for February 4. REUTERS/Anton Golubev (RUSSIA - Tags: POLITICS ELECTIONS) 

Opposition leader Garry Kasparov gives an interview after a meeting of the organisational committee for a forthcoming opposition protest in Moscow January 31, 2012. The protest, similar to mass protests organised after a parliamentary election in December, is planned for February 4. REUTERS/Anton Golubev (RUSSIA - Tags: POLITICS ELECTIONS) 

Russian opposition leader Garry Kasparov pins a badge of support onto his lapel during a meeting with other opposition leaders in Moscow December 23, 2011. More than 40,000 Russians have signed up to protest in Moscow on Saturday against a disputed election, dismissing Kremlin promises of political change that could ease Vladimir Putin's grip on power. REUTERS/Denis Sinyakov (RUSSIA - Tags: POLITICS CIVIL UNREST) 

Russian opposition leaders (front row L-R): Vladimir Ryzhkov, Gennady Gudkov, Garry Kasparov and Olga Romanova listen during a meeting with other opposition leaders in Moscow December 23, 2011. More than 40,000 Russians have signed up to protest in Moscow on Saturday against a disputed election, dismissing Kremlin promises of political change that could ease Vladimir Putin's grip on power. REUTERS/Denis Sinyakov (RUSSIA - Tags: POLITICS CIVIL UNREST) 

Russian opposition leaders (front row L-R): Vladimir Ryzhkov, Gennady Gudkov, Garry Kasparov, Olga Romanova and author Boris Akunin listen during a meeting with other opposition leaders in Moscow December 23, 2011. More than 40,000 Russians have signed up to protest in Moscow on Saturday against a disputed election, dismissing Kremlin promises of political change that could ease Vladimir Putin's grip on power. REUTERS/Denis Sinyakov (RUSSIA - Tags: POLITICS CIVIL UNREST) 

Police officers detain Olga Kurnosova, the leader of the St. Petersburg branch of Garry Kasparov?s United Civil Front movement, during a protest to defend Article 31 of the Russian constitution in St.Petersburg, August 31, 2011. Article 31 guarantees the right of assembly. REUTERS/Alexander Demianchuk (RUSSIA - Tags: CIVIL UNREST POLITICS CRIME LAW) 

Olga Kurnosova, the leader of the St. Petersburg branch of Garry Kasparov?s United Civil Front movement, flashes victory signs from a police van after being detained during a protest to defend Article 31 of the Russian constitution in St.Petersburg, August 31, 2011. Article 31 guarantees the right of assembly. REUTERS/Alexander Demianchuk (RUSSIA - Tags: CIVIL UNREST POLITICS CRIME LAW TPX IMAGES OF THE DAY) 

Former chess world champion Garry Kasparov speaks during the launch of the Kasparov Chess Foundation Europe in Brussels June 8, 2011. The mission of the Foundation will be to promote chess in schools, especially amongst children and young people throughout Europe REUTERS/Ezequiel Scagnetti (BELGIUM - Tags: SOCIETY) 

Former chess world champion Garry Kasparov speaks during the launch of the Kasparov Chess Foundation Europe in Brussels June 8, 2011. The mission of the Foundation will be to promote chess in schools, especially amongst children and young people throughout Europe REUTERS/Ezequiel Scagnetti (BELGIUM - Tags: SOCIETY) 

Former chess world champion Garry Kasparov speaks during the launch of the Kasparov Chess Foundation Europe in Brussels June 8, 2011. The mission of the Foundation will be to promote chess in schools, especially amongst children and young people throughout Europe REUTERS/Ezequiel Scagnetti (BELGIUM - Tags: SOCIETY) 

Former chess world champion Garry Kasparov speaks during the launch of the Kasparov Chess Foundation Europe in Brussels June 8, 2011. The mission of the Foundation will be to promote chess in schools, especially amongst children and young people throughout Europe REUTERS/Ezequiel Scagnetti (BELGIUM - Tags: SOCIETY) 

U.S.Vice President Joe Biden (2nd L) poses for a picture with Russian opposition leaders Oksana Dmitriyeva (L), Nina Ostanina (3rd L), Boris Nemtsov (4th L), Vladimir Ryzhkov (2nd R) and opposition leader and former world chess champion Garry Kasparov in Moscow March 10, 2011. Biden is on the second day of an official visit, meeting top officials in the Russian capital. REUTERS/Alexander Natruskin (RUSSIA - Tags: POLITICS) 

U.S.Vice President Joe Biden (2nd R) shakes hands with opposition leader and former world chess champion Garry Kasparov (R) as U.S. Ambassador to Russia John Beyrle shakes hands with Vladimir Ryzhkov (C), with Boris Nemtsov (2nd L) looking on during their meeting in Moscow March 10, 2011. Biden is on the second day of an official visit, meeting top officials in the Russian capital. REUTERS/Alexander Natruskin (RUSSIA - Tags: POLITICS) 

Russian opposition leader Garry Kasparov delivers a speech during a rally called 'I am for Russia without Putin' to demand the resignation of Prime Minister Vladimir Putin in central Moscow February 19, 2011. REUTERS/Nikolay Korchekov (RUSSIA - Tags: POLITICS CIVIL UNREST) 

Russian opposition leader and former chess world champion Garry Kasparov speaks during a news conference in Sarajevo after a visit to Bosnia, August 16, 2010. REUTERS/Dado Ruvic (BOSNIA AND HERZEGOVINA - Tags: SPORT CHESS SOCIETY POLITICS) 

An opposition leader Garry Kasparov walks during the anti-Kremlin "Solidarity" movement protest rally marking International Workers' Day, or Labour Day, in Moscow May 1, 2010. REUTERS/Denis Sinyakov (RUSSIA - Tags: POLITICS CIVIL UNREST) 

Georgian President Mikheil Saakashvili (R) and Russia's opposition leader Garry Kasparov meet in Tbilisi, March 16, 2010. REUTERS/Irakli Gedenidze/Pool (GEORGIA - Tags: POLITICS) 

Georgian President Mikheil Saakashvili (L) and Russia's opposition leader Garry Kasparov shake hands during a meeting in Tbilisi March 16, 2010. REUTERS/Irakli Gedenidze/Pool (GEORGIA) 

Georgian President Mikheil Saakashvili (R) and Russia's opposition leader Garry Kasparov meet in Tbilisi March 16, 2010. REUTERS/Irakli Gedenidze/Pool (GEORGIA - Tags: POLITICS) 

Former chess world champion Garry Kasparov speaks during the Youth Engagement Summit 2009 in Putrajaya outside Kuala Lumpur November 17, 2009. REUTERS/Bazuki Muhammad (MALAYSIA SOCIETY) 

Former chess world champion Garry Kasparov speaks during the Youth Engagement Summit 2009 in Putrajaya outside Kuala Lumpur November 17, 2009. REUTERS/Bazuki Muhammad (MALAYSIA HEADSHOT SOCIETY) 

Former world chess champion Garry Kasparov speaks during the Youth Engagement Summit 2009 in Putrajaya outside Kuala Lumpur November 17, 2009. REUTERS/Bazuki Muhammad (MALAYSIA SOCIETY) 

Former chess world champion Garry Kasparov (R) makes a move against his opponent Anatoly Karpov during the last game of their 25th anniversary match in Valencia, September 24, 2009. Kasparov won the three day match. REUTERS/Heino Kalis (SPAIN SPORT CHESS) 

Former chess world champion Garry Kasparov (R) makes a move against his opponent Anatoly Karpov during the last game of the last day of their 25th anniversary match in Valencia September 24, 2009. Kasparov won the three-day match. REUTERS/Heino Kalis (SPAIN SOCIETY SPORT) 

Former chess world champion Garry Kasparov observes the board during the last day of his 25th anniversary match against Anatoly Karpov in Valencia, September 24, 2009. REUTERS/Heino Kalis (SPAIN SPORT CHESS IMAGES OF THE DAY) 

Former chess world champion Garry Kasparov makes a move during the sixth game of the last day of his 25th anniversary match against Anatoly Karpov in Valencia, September 24, 2009. REUTERS/Heino Kalis (SPAIN SPORT CHESS) 

Former chess world champions Anatoly Karpov (R) and Garry Kasparov shake hands before the first game of the last day of their 25th anniversary match in Valencia, September 24, 2009. REUTERS/Heino Kalis (SPAIN SPORT CHESS) 

Former chess world champion Anatoly Karpov looks at the board during the first game of the last day of his 25th anniversary match against Garry Kasparov in Valencia, September 24, 2009. REUTERS/Heino Kalis (SPAIN SPORT CHESS)