Along with Mammadyarov, the tournament will also bring together Alireza Firouzja, Maxime Vachier-Lagrave, Fabiano Caruana, Levon Aronian, Leinier Dominguez, Hikaru Nakamura, Sam Shankland, Richard Rapport and Ian Nepomniachtchi.
The sixth annual Saint Louis Rapid & Blitz is also the fourth leg of the Grand Chess Tour. The prize fund is $175,000.
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