After a dream run, R. Praggnanandhaa had an off-day against Vietnam’s Liem Le Quang, and lost 0.5-2.5 to slip the second spot behind Magnus Carlsen after the fifth round of the $210,000 FTX Crypto Cup rapid chess tournament in Miami on Friday. After the first game ended in a draw, Praggananandhaa faltered in equal positions in the next two games …