With the World Championship in full swing, the Question of Sport team have put together a selection of questions based on the colours of the balls. Head here to have a go.
BBC SportCopyright: BBC Sport
Watch: Robertson's 'remarkable' 147 in full
Watch as Neil Robertson scores the first 147 break of the World Snooker Championship.
Video content
Video caption: Watch Neil Robertson's 147 at the World Snooker Championship in fullWatch Neil Robertson's 147 at the World Snooker Championship in full
Last time out
Video content
Video caption: Watch the best shots as Mark Selby beat Shaun Murphy to win the snooker World ChampionshipWatch the best shots as Mark Selby beat Shaun Murphy to win the snooker World Championship
Last year saw Mark Selby claim his fourth World Championship
title with an 18-15 victory over Shaun Murphy as crowds returned to The
Crucible.
After a behind closed doors tournament in 2020 – one that
was held in August rather than the traditional April because of the Coronavirus
pandemic – Leicester’s Selby moved to within three Crucible crowns of Stephen
Hendry's record of seven.
He is level with John Higgins and two behind Ronnie
O'Sullivan, Steve Davis and Ray Reardon.
Selby went into this year’s tournament as the second-ranked
player behind O’Sullivan but was beaten 13-10 in the second round by China's Yan Bingtao.
What is it?
Getty ImagesCopyright: Getty Images
The World Championship is snooker's biggest event and has
been staged since 1927. It has been hosted in its modern form by Sheffield's
Crucible Theatre since 1977.
It is one part of snooker's 'Triple Crown' events alongside
the UK Championship and the Masters.
The event has seen some of the biggest names in snooker
throughout the decades win the trophy, including Stephen Hendry (seven titles)
and Ronnie O'Sullivan (six titles).
How can I watch the World Snooker Championship?
All times are BST and subject to late changes
Live coverage
10:00-12:15 - BBC Two
10:00-14:00 - uninterrupted coverage of both tables on BBC iPlayer, BBC Red Button, BBC Sport website and mobile app
13:00-18:00 - BBC Two
14:30-18:00 - uninterrupted coverage of both tables on BBC iPlayer, BBC Red Button, BBC Sport website and mobile app
19:00-20:00 - BBC Two
19:00-22:30 - uninterrupted coverage of both tables on BBC iPlayer, BBC Red Button, BBC Sport website and mobile app
20:00-21:00 - BBC Four
Highlights
23:15-00:05 - BBC Two
World Championship Extra
00:05-02:05 - BBC Two
How to get into snooker
BBC Sport
Video content
Video caption: Get Inspired: How World Snooker is helping build confidence in the communityGet Inspired: How World Snooker is helping build confidence in the community
Whether
you choose to play competitively or socially, snooker is sure to get your brain
working.
It
requires skill and concentration and will improve your focus and hand-eye
coordination.
Anyone
can play regardless of age, gender or ability and it's not an expensive sport
to get into.
Snooker
is essentially a simple sport, once the rules of the game have been learnt - to
do just that click here.
Live Reporting
All times stated are UK
BBC SportCopyright: BBC Sport Video caption: Watch Neil Robertson's 147 at the World Snooker Championship in fullWatch Neil Robertson's 147 at the World Snooker Championship in full Video caption: Watch the best shots as Mark Selby beat Shaun Murphy to win the snooker World ChampionshipWatch the best shots as Mark Selby beat Shaun Murphy to win the snooker World Championship 
Getty ImagesCopyright: Getty Images 
Video caption: Get Inspired: How World Snooker is helping build confidence in the communityGet Inspired: How World Snooker is helping build confidence in the community
Latest PostO'Sullivan extends quarter-final lead over Maguire
By Steve Sutcliffe
BBC Sport at the Crucible Theatre
Six-time champion Ronnie O'Sullivan extends his lead to 11-5 over Stephen Maguire in their World Championship quarter-final.
Read moreQuiz time...
With the World Championship in full swing, the Question of Sport team have put together a selection of questions based on the colours of the balls. Head here to have a go.
Watch: Robertson's 'remarkable' 147 in full
Watch as Neil Robertson scores the first 147 break of the World Snooker Championship.
Video content
Last time out
Video content
Last year saw Mark Selby claim his fourth World Championship title with an 18-15 victory over Shaun Murphy as crowds returned to The Crucible.
After a behind closed doors tournament in 2020 – one that was held in August rather than the traditional April because of the Coronavirus pandemic – Leicester’s Selby moved to within three Crucible crowns of Stephen Hendry's record of seven.
He is level with John Higgins and two behind Ronnie O'Sullivan, Steve Davis and Ray Reardon.
Selby went into this year’s tournament as the second-ranked player behind O’Sullivan but was beaten 13-10 in the second round by China's Yan Bingtao.
What is it?
The World Championship is snooker's biggest event and has been staged since 1927. It has been hosted in its modern form by Sheffield's Crucible Theatre since 1977.
It is one part of snooker's 'Triple Crown' events alongside the UK Championship and the Masters.
The event has seen some of the biggest names in snooker throughout the decades win the trophy, including Stephen Hendry (seven titles) and Ronnie O'Sullivan (six titles).
How can I watch the World Snooker Championship?
All times are BST and subject to late changes
Live coverage
10:00-12:15 - BBC Two
10:00-14:00 - uninterrupted coverage of both tables on BBC iPlayer, BBC Red Button, BBC Sport website and mobile app
13:00-18:00 - BBC Two
14:30-18:00 - uninterrupted coverage of both tables on BBC iPlayer, BBC Red Button, BBC Sport website and mobile app
19:00-20:00 - BBC Two
19:00-22:30 - uninterrupted coverage of both tables on BBC iPlayer, BBC Red Button, BBC Sport website and mobile app
20:00-21:00 - BBC Four
Highlights
23:15-00:05 - BBC Two
World Championship Extra
00:05-02:05 - BBC Two
How to get into snooker
BBC Sport
Video content
Whether you choose to play competitively or socially, snooker is sure to get your brain working.
It requires skill and concentration and will improve your focus and hand-eye coordination.
Anyone can play regardless of age, gender or ability and it's not an expensive sport to get into.
Snooker is essentially a simple sport, once the rules of the game have been learnt - to do just that click here.