Another day done and dusted at the World Snooker Championship and one which has provided us with drama, intrigue and a little slice of history.

Mark Allen and Wu Yize played out the longest-ever frame in the history of the tournament which lasted 100 minutes and 21 seconds. Their semi-final is finely poised at 7-7 with only six of the scheduled eight frames actually played today.

In the other semi, John Higgins and Shaun Murphy were nip and tuck until the final two frames of the evening which were both won by the veteran Scot to give him a 13-11 lead.

We will back on Saturday at 10:00 BST with live coverage on the BBC Sport website and iPlayer. However, if you're still looking for some snooker stories to catch up on in the meantime check these out:

• A golden period for snooker - but are UK clubs returning from doldrums?
• Crucible pressure '50 times worse than driving test'
• Players unhappy as Saudi Arabia Masters cancelled

• 'Paul was fun': Remembering snooker's lost great 20 years on

10:00 BST

Wu Yize (10) 7 v 7 Mark Allen (14)

14:30

John Higgins (5) 13 v 11 Shaun Murphy (8)

19:00

Wu Yize (10) v Mark Allen (14)

Stephen Hendry
Seven-time world champion on BBC Two

It's what John Higgins has done in every match this championship - he's got better as each match has gone on and played his best snooker near the end of the match.

He knows when the business end of these games are and he just finds gears, that's what he's always done.

Joe Perry
Former World Championship semi-finalist on BBC Two

That's the best John Higgins has looked in this semi-final.

Since the interval that's breaks of 63, 70 and a century - clinical, one-frame snooker, that's what you want at this stage of the match.

John Higgins finishing the session with a flourish as he completes a century break followed up a double on a red into the middle pocket.

It concludes at 101 but the 50-year-old Scot will be more than satisfied with his night's work as he takes a two-frame lead into tomorrow.

A less-than-perfect blue leaves John Higgins with a difficult red into the corner pocket, but he holds his nerve to cut it in.

Higgins continues to rack up a controlled break of 69 to leave Shaun Murphy requiring a snooker.

John Higgins rattles in a long red to kick start a break in the final frame of the day.

He reaches 20 before leaving the cue ball in a tricky position towards the apex of the pack, but the Scot skillfully bridges to pot a red into the middle.

Stephen Hendry
Seven-time world champion on BBC Two

I tend to think the final frame will follow the same pattern - Shaun Murphy will somehow get it level and we'll be all-square going into tomorrow.

John will know this is now a massive frame - he's been here and played in enough semi-finals and finals to know this frame could be huge.

BBC Four

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The final red is left over the pocket leaving Shaun Murphy with no option but to knock it into the pocket. However, the 'Magician' is unable to pull a rabbit out the hat to win the frame and misses the subsequent black and the concession quickly follows.

Higgins one ahead with one frame left in the evening.

Shaun Murphy rattles off a break of 32 before, with one red remaining, he attempts to snooker John Higgins behind the yellow.

Higgins escapes but Murphy continues to look for that elusive snooker.

Mark Allen made a 145 break in the second session of his semi-final with Wu Yize earlier today - the highest of this year's World Championship so far.

Before that the best was four breaks of 140 - two by Allen, along with Barry Hawkins and Shaun Murphy.

John Higgins leaves himself with an awkward black along the cushion and moments later he is puffing his cheeks in frustration.

A break of 70 gives Shaun Murphy a chance with one snooker needed.

Clinical potting from John Higgins as he takes advantage of a promising table to chalk up a break of 62. There's 75 points remaining.

The Scot is well placed here.

Early stages in frame 23 and Shaun Murphy purses his lips after missing a red with the rest.

John Higgins pots a red then screws back after slamming in the brown towards the pack which provides him with an opening to eventually get to work on the black.

Stephen Hendry
Seven-time world champion on BBC Two

Shaun Murphy, along with Neil Robertson, are probably the two consistently best long potters the game has seen, really.

A long red is almost like a black off the spot for Shaun, the way he cues.

You can't afford to let him see them off the break-off - he's going to do damage.

A little nod to the Crucible crowd from Shaun Murphy after making a century break before he misses a double on the last red into the middle pocket.

That's his 100th century at this famous venue.

Nothing between these two today.

Joe Perry
Former World Championship semi-finalist on BBC Two

It looks like Shaun Murphy is cueing the better of the two, but he just keeps letting John Higgins back in.

John, you can just never write him off.