Jeremy Paxman asks the questions in the last of the semi-finals.

It's the first of the semis and one team find out if they have made it to the grand final.

In the last of the quarter-finals, one more team makes it through to the semi-finals.

It is the penultimate quarter-final match.

The pressure is increasing as the quarter-finals continue.

The quarter-final stage continues.

The quarter-final stage continues.

The quarter-final stage continues.

The quarter-final stage continues.

Pressure is mounting as the quarter-finals continue. Jeremy Paxman asks the questions.

The quarter-finals continue. Jeremy Paxman asks the questions.

It is the first of the quarter-finals and two student teams fight it out.

Students from two more universities battle it out for a place in the quarter-finals.

Two teams representing their universities aim to reach the quarter-finals.

Which university will be crowned Christmas University Challenge champions?

Two teams return to compete in the second semi-final. Jeremy Paxman asks the questions.

Two teams return to compete in the first semi-final. Jeremy Paxman asks the questions.

In the last first round match, the University of Bristol take on Nottingham University.

Magdalene College, Cambridge, take on St Hilda's College, Oxford.

University of Edinburgh alumni take on a team from St Catharine's College, Cambridge.

A team representing Soas take on a University of Leeds side for a semi-final place.

A team representing City, University of London, take on Newcastle University.

A University of Kent team battles a University of Sussex side for a semi-final place.

In the opening match, a University of Manchester team take on St Anne's College, Oxford.

Two teams representing their universities aim to reach the quarter-finals.