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PITTSBURGH (KDKA) – If you think chess is hard, try playing while blindfolded and riding a stationary bike.

That’s what Chess Grandmaster Timur Gareyev did on Saturday in on the third floor of the Wightman building in Pittsburgh while playing against 15 opponents.

Photo Credit: Royce Jones/KDKA

Gareyev responded to his moves without the sight of the boards as a director calls out the moves of opponents.

Gareyev played a Pittsburgh record 15 boards (10 kids and 5 adults). It is estimated that Gareyev bikes about 50 miles while pedaling and playing blindfold against his opponents.