Jammu, April 2 -- Praggnanandhaa's coach RB Ramesh tells The Indian Express ahead of the Candidates chess tournament, "I'm proud to see that Pragg has come this far, but I don't think this is his best. The best I believe is yet to come."

AT THE upcoming Candidates chess tournament, India's 18-year-old RPraggnanandhaaand 22-year-old R Vaishali will carve a slice of history before a pawn has marched down the battlefield of the 64 squares: they will become the first brother and sister duo to play at the prestigious tournament, which has been around since 1950.

In sport, there cannot be a better advantage than having a sibling who can play at the same elite level. But in chess, that equation does not hold true, which is why the brother and ...