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The 17-year-old Gukesh is in joint lead with Russia's Ian Nepomniachtchi.
Gukesh and Nepomniachtchi have six points each with Praggnanandhaa, Caruana and Nakamura close on their heels half a point behind.
Nakamura, Gujrathi and Caruana share the fourth spot on 4.5 points.
Wimbledon champion Elena Rybakina and Simona Halep also advanced.
The dead have been identified as Harpreet Singh, Jaspinder Singh, Karanpal Singh, Mohit Chouhan and Pawan Kumar.
Safe places are identified based on over 76 indicators, including digital, health, infrastructure, personal and environmental safety
Serena Williams' first US Open tune-up ended in dramatic fashion as the tearful American was forced to retire with a back injury while trailing Canadian teenager Bianca Andreescu 3-1 in the final.
Nadal ended the red-hot run of Greek upstart Stefanos Tsitsipas with a ruthless 6-2, 7-6(4) win.