Maxime Vachier-Lagrave, left, is through to the last 16 of the Chess World Cup ©FIDE

France's seventh seed Maxime Vachier-Lagrave is the highest-profile name to reach the fifth round of the Chess World Cup in Sochi, after beating Indian prodigy Rameshbabu Praggnanandhaa.

Following a draw with the 90th seed yesterday, Vachier-Lagrave ensured there would not be an upset with a win today over the 15-year-old.

World number one and reigning world champion Magnus Carlsen could not get the job done after drawing for a second consecutive day with 33rd seed Radosław Wojtaszek.

The Norwegian won all four of his opening games in the second and third round, but has been stumped in the fourth by the resilient Polish player.

Russian fifth seed Alexander Grischuk is suffering the same stalemate at the moment against Ukraine's 37th seed Anton Korobov, who he is still level with after two days.

Sergey Karjakin, the only other player still remaining in the tournament in the top 10, is equal with 23rd seed compatriot Vladislav Artemiev following a second draw.

The winner is to play Vachier-Lagrave in the next round.

Iranian 86th seed Amin Tabatabaei is continuing his impressive run in the tournament after putting away Indian 11th seed Pentala Harikrishna with a draw today, following his victory yesterday.

He is due to face Armenian 59th seed Haik Mikaeli Martirosyan following his victory over Croatian 102nd seed Ante Brkić.

Serbian Velimir Ivić, who is the lowest-ranked player still in the tournament as 110th seed, has held Russian 14th seed Dmitry Andreikin to a second draw.

In the Women's Chess World Cup, top seed Aleksandra Goryachkina of Russia has been held to a second draw against Bulgarian 16th seed Antoaneta Stefanova.

Her compatriot 14th seed Alexandra Kosteniuk is through after upsetting third seeded Ukrainian Maria Muzychuk today.

The Ukrainian's sister Anna Muzychuk is through to the quarter-finals following a victory over German 20th seed Elisabeth Pähtz.

Russian second seed Kateryna Lagno drew for a second day with Kazakh 50th seed Bibisara Assaubayeva.

Kosteniuk is set to play fellow Russian Valentina Gunina in the next round after her next opponent defeated Georgian 11th seed Nino Batsiashvili.

Chinese seventh seed Tan Zhongyi is also through following a win over Iranian 10th seed Sarasadat Khademalsharieh.