During the third round of the 2010 World Senior Chess Championship in Arco, Italy, Fløtten collapsed at the chessboard, and despite rapid intervention from medical personnel, his life could not be saved.
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Kholmov tied for the title in the 2000 World Senior Championship at Rowy, on 8/11 with Mark Taimanov, Jānis Klovāns, and Alexander Chernikov.
Post-millennium, he remains actively engaged in playing chess and finished second at the 2006 World Senior Chess Championship in Arvier.