Hello and welcome to the intelligence from The Economist. I'm your host, Jason Palmer.

Every weekday, we provide a fresh perspective on the events shaping your world.

In Africa's Sahel region, 10,000 people have died in the past two years as jihadists battle security forces and Western peacekeepers.

The forces aren't keeping the peace, and on a visit, our correspondent finds the jihadists are winning the war.

And in competitive gaming, there should be a level playing field between men and women.

But a persistent gender divide keeps women out of esports' top flight and hands them less loot.

Slowly, though, that seems to be changing.

First up, though.

For much of this millennium, elections in Chile have been relatively stable affairs.

Not this time.

In the first round of presidential elections,

voters plumped for the most extreme candidates with starkly contrasting visions for the country's future.

On the far right, Jose Antonio Caste received 28% of the vote.

And just behind him, with 26%, the communist-friendly former student leader Gabriel Borick. The elections took place with Chile still in the shadow of deadly protests two years ago.

More than a million people took to the streets, frustrated with the country's deep inequalities.

To restore calm, Chile's leaders agreed to rewrite the country's constitution, first adopted

under the dictator Augusto Pinochet,

whose rule ended in 1990.

That promise was intended to bring some political and social stability.

But constitutional reform is now tied up with heavily polarized politics,

and the runoff election in December is only likely to deepen the country's divisions.

This is the most polarized election Chile has had since the return of democracy in 1990,

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