Gukesh Dommaraju — an 18-year-old from India — has become the youngest-ever world chess champion. That’s after beating defending champion Ding Liren, a 32-year-old from China.

Dommaraju comes from Chennai, in the state of Tamil Nadu. Saradha V, a BBC reporter in Chennai, explains how the city became India’s chess capital and how schools there are producing an impressive generation of young players.

Plus: Giovanni Sala, a Lecturer in Psychology at the University of Liverpool, explains how the Internet is helping chess players master the game more quickly than players did decades ago. He also describes the benefits that chess has for young people.

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Game of Thrones. Twilight. Little Red Riding Hood. The wolf is an animal that appears more than most creatures across popular culture. They’re known for being fierce, dangerous and scary. Is this what they are like in real life though? Abby Keller, who works at the International Wolf Centre in the US, tells us everything we need to know about wolves.

For 45 years in Europe, grey wolves were under the second highest level of protection in European Union laws. This is called Annex Two and offered ‘strict protection’. This month though, EU conservation officials voted to downgrade them to Annex Three. It means they have gone from ‘strictly protected’ to just ‘protected’. From March next year, each EU nation will be able to set a yearly figure of how many wolves can legally be killed in their country.

The BBC’s Emilia Jansson explains the decision and what it means for the wolf population of the EU.

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The reasons women donate their eggs vary significantly. Some people say they feel a sense of pride knowing they may help other women conceive children. Others say they want to earn a bit of extra cash, since many clinics are willing to pay donors for their eggs.

Charlotte Edwards, BBC Business reporter, explains how the process of egg donation works — and how it differs by country.

Plus: Elaine Chong, an egg donor in the United Kingdom and BBC journalist, discusses how she wanted to help other women of Chinese descent expand their families. And Ebimoboere Ibinabo Dan-Asisahin, an egg donor in Nigeria, discusses the process and physical side effects she experienced.

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There’s nothing quite like going to see a new film in the cinema; the big screen, surround sound, buckets of popcorn and collective gasps from the audience. But the film industry has experienced a number of setbacks in recent years, including the pandemic, competition from streaming, and Hollywood strikes.

Annabel Rackham, a BBC culture reporter, talks us though whether cinema in the United States, and elsewhere, is bouncing back, and how mega hits like Wicked and Gladiator 2 are helping.

We also speak to Mr C, a film critic from Nigeria who now lives in the UK, about how cinema is faring in Nigeria. And Adam Chowdhury from the What in the World team quizzes Hannah on some (pretty surprising) film-related Guinness World Records.

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Brazil is known for it's top-tier football and stars like Vinicius Junior or Neymar. The enthusiasm for football has now a new layer, with millions of people turning to online betting when watching their national game.

Brazil is now considered the third-biggest market globally for sports betting, and authorities are trying to tackle this issue as lots of people are struggling with debt and gambling addictions, as we hear from Ian Alves, a BBC journalist in Sao Paulo.

And Reece Bush-Evans, member of the Gambling Research Group in the UK explains why gambling can be so addictive.

If you’ve been affected by any of the issues discussed in this episode please contact support organisations in your own country. Or, if you live in the UK, please check out bbc.co.uk/actionline.

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The world was stunned over the weekend as rebel forces in Syria captured the capital of Damascus, forcing President Bashar al-Assad to flee and ending the final chapter of his violent regime. Assad is reported to have fled to Russia whilst opposition forces now loot his empty palace and people celebrate on the streets.

But who are the Syrian rebels who toppled Assad’s rule? And why has it happened now after decades of the Assad family in charge.

Five BBC experts - Frank Gardner, Lyse Doucet, Lina Sinjab, Mina Al-Lami and Barry Marston - take us through the story.

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This audio was updated after publication and a name correction was made on the 17th December.

K-pop girl group NewJeans announced they were leaving their record label during an emergency press conference last week. This follows months of public disagreements between the label, the band, and fans. But the group is tied into a contract until 2029. So, what happens now?

Our reporter, Fan Wang, breaks it all down and the BBC’s Music Correspondent, Mark Savage, helps us with the question on everyone’s lips… if they do leave their agency do they get to keep their music and their name?

We also talk about Riize. One of its members has recently left the band after fan backlash. We take a look at how much power K-pop fans have over their idols with Julie Yoonnyung Lee, our resident K-pop expert.

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Phones have become an essential part of most people’s everyday lives, and debates about them in schools - as well as teenagers’ access to social media - are internationally hot topics.

BBC journalist Hayley Clarke joins us in the studio to talk through different approaches to social media and phone bans in schools around the world. We also hear from students in France and the US about how they would feel about potential bans.

Hannah Ritchie, a BBC journalist, explains the situation in Australia, where the government says it will introduce "world-leading" legislation to ban children under 16 from social media.

Plus we hear from two professors on opposing sides of the debate, and ask what is the scientific evidence that shows phones and social media are bad for us?

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South Korea's president Yoon Suk Yeol shocked the country on Tuesday night when, out of the blue, he declared martial law in the country. It’s the first time such an order has been passed there in nearly 50 years. Yoon cited "anti-state forces" and the threat from North Korea. But it soon became clear that the move may have been politically motivated.

Within hours thousands of people gathered in protest, and opposition lawmakers rushed to remove the measure. Julie Yoonnyung Lee, a BBC World Service reporter, talks us why the announcement was so shocking - and how it could impact South Korea’s democracy.

Plus, Emilia Jansson from the What in the World team shares which other countries have used martial law, and why.

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For the past few nights, thousands of Georgians have been out protesting the government in Tbilisi. It’s because the ruling party, Georgian Dream, says it’s pausing negotiations to join the European Union until 2028. Many Georgians see the move as a betrayal of achieving the long-standing ambition of joining the EU, and some fear the country is inching closer to Russia’s influence.

The BBC’s Rayhan Demytrie takes us through the political situation in the country and explains why many Georgians are unhappy.

We also hear from two women, Nutsa and Nini, about why they’ve decided to join this round of protests.

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