Indian Grand Master Vidit Gujrathi opened up a one-point lead after posting an impressive win over the world's top junior Alireza Firouzja in the fifth round of the Prague Chess Festival's Masters Category in the Czech capital.

The 25-year old notched up his third win by defeating his Iranian opponent in a 24-move Slav exchange late last night.

P Harikrishna, the other Indian in the 10-player field, held higher-rated Russian Nikita Vitiugov in 59 moves, to take his tally to two points. Vitiugov and top-seed Jan-Krzysztof Duda of Poland are in the second spot with three points. Duda with Elo rating 2755 could not force a win over Swedish GM Nils Grandelius, the lowest-rated player in the Master's event at 2659 points.

In the sixth round to be played tomorrow after a day's rest, Harikrishna will meet David Anton Guijarro and Gujrathi will take on Vitiugov.