Andrey Esipenko experienced heartbreak in the semi-finals of the FIDE World Cup on Sunday when he blundered a rook in the endgame of the second tiebreak match against China’s Wei Yi which resulted in a resignation from the Russian grandmaster. The result meant that Esipenko is now fighting against Uzbek chess grandmaster Nodirbek Yakubboev in the third place match, which started on Monday to decide the fate of the third Candidates spot. In the aftermath of the defeat for Esipenko, chess legend Susan Polgar posted a compassionate tweet in favour of the Russian, who is competing at the Chess World Cup under the FIDE flag since the sport has prohibited players from showing symbols of Russia after the invasion of Ukraine. “Be nice, be kind! This was a devastating moment for Esipenko. It was a colossal blunder he will never forget. But don’t attack or make fun of this young man just because he is Russian. No one has to like him or support him. But be a decent human being,” Polgar posted on X. …