India, March 7 -- Indian Grandmaster Aravindh Chithambaram defeated Netherland's Jorden van Foreest but world champion D Gukesh's winless run continued as he played out a draw yet again, this time against Vincent Keymer of Germany in the eighth and penultimate round of the Prague International chess festival here.

Uzbekistan's Nodirbek Abdusattorov leapfrogged to the pole position following a victory over local favourite David Navara.

With 5.5 points in his kitty, Abdusattorov enjoys a half-point lead over van Foreest with just one round remaining. After winning the Tata Steel Masters earlier in February, this could well be the second super-event win for the young Uzbek.

Navara is the lone player on 4.5 points occupying the third spot,...