Calcutta: International Master and top seed Diptayan Ghosh was held by Krishna Teja of Andhra Pradesh in the fourth round of the National sub-junior under-15 chess championship for boys and girls, organised by Bengal Chess Association, at the Bidhan Shishu Udyan, here on Thursday.
Third seed Arvindh Chithambaram though continued with his fine run to maintain lead along with compatriots — sixth seed B Kumaran and 17th seed Al Muthaiah with four points each.
Second seed Murali Karthikeyan bounced back with a win over Mitrabha Guha of Bengal.
Murali, along with eighth seed Pranav Vijay, Bengal boy Neelash Saha and four others were jointly in the second position with 3.5 points each.
In the girls’, top seed M Mahalakshmi and third seed R Vaishali maintained lead with an all-win record after fourth round.
After dropping point in the previous round second seed GK Monnisha won her game against Sunyasakti Satpathy of Odisha after having some anxious moment.
The 62-move game is the longest so far. Monnisha along with two others were jointly sharing the second position with 3.5 points.
Diptayan was caught off-guard when Krishna Teja took Nimzo Indian variation with tactical mid game.