The X Factor (UK) Season 15 Episode 9 | Watch The X Factor (UK) Season 15 Episode 9 | The X Factor (UK) Season 15 Episode 9 - Six Chair Challenge br br Watch Full@ br br Synopsis: The Six Chair Challenge returns, as the judges each decide on the acts they take through to their Judges' House. This year each judge has a golden button, which guarantees one act in their line-up a place in the final 6, meaning that once they have a seat, they cannot be swapped out.