Indian Grandmaster R Praggnanandhaa defeated World Championship challenger Javokhir Sindarov in a marathon 95-move game at the 2026 Sinquefield Cup. St Louis: Indian grandmaster Rameshbabu Praggnanandhaa scored a big win over World Championship challenger Javokhir Sindarov in the second round of the Sinquefield Cup. Praggnanandhaa won his first Rapid & Blitz title at the 2026 Saint Louis Rapid & Blitz as the first U.S. leg of the Grand Chess Tour (GCT).