Richard Osman has announced he's leaving Pointless.

The presenter has hosted the show alongside Alexander Armstrong since 2009. Confirming the news on Twitter, he wrote: "SOME NEWS!

"After 13 wonderful years I'm leaving daytime Pointless, to concentrate on writing. Will still be doing the celebrity shows and House Of Games.

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alexander armstrong, richard osman, pointless
Matt Frost//BBC

"It has been the GREATEST pleasure and I can't wait to start watching as a viewer. Thank you to everyone!"

He added: "Will miss the whole team, especially the incomparable @XanderArmstrong.

"Thank you to everyone who watches, it really has been a dream, and I know the show will continue to go from strength to strength."

He echoed his sentiment in a statement to the BBC, adding: "Pointless has been a joy from start to finish, working alongside my friend Alexander Armstrong, backed by the most wonderful team, and for the best viewers in the world

richard osman's house of games
BBC/Remarkable TV/Matt Frost

"I will miss everyone so much, but I'm thrilled that I'll still be presenting the celebrity shows. I can't thank everyone enough for twelve amazing years."

Armstrong said: "Daytime television's loss is international best-selling crime fiction's gain. I say that like it's a consolation – I'm going to miss the big man next to me Monday to Friday.

"But at least I still get him at weekends – and weekdays if you're watching on Challenge."

The BBC announced a roster of guest presenters will be taking his seat alongside Armstrong, with details set to be announced at a later date.

richard osman, pointless
Matt Frost//BBC

Alongside his presenting, Osman is also a successful author.

His debut novel The Thursday Murder Club recently shot to number one in the charts, earned the record for the longest consecutive run at the top, and became the fastest-selling crime debut of all time.

Director Steven Spielberg also bought the rights for the film adaptation, with Osman serving as an executive producer.

Pointless airs on BBC One.

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