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Dundee 4-0 Airdrieonians - Robertson heads opener, Cameron doubles lead, Adewumi slides in third, then Cameron nets again
Livingston 3-0 Cove Rangers - McGowan volleys in free kick; Yengi nets low effort; then striker adds third
St Johnstone 1-0 Hamilton Academical - Sidibeh deflects in Carey strike
Arfield nets hat trick on second debut as Falkirk lead 10-man Thistle 5-2
Celtic v Raith Rovers is almost upon us.
You can follow that 17:30 kick-off here.
Tomorrow, we have Aberdeen v Dunfermline Athletic (12:30) and Rangers v Queen's Park (15:00).
St Mirren and Hearts have to wait until Monday night.
Dundee, St Johnstone and Livingston join Hibs in the last eight, which means we are halfway through the ties.
Scottish League 2
Bonnyrigg Rose 3-4 Peterhead
Clyde 2-0 Stranraer
Forfar Athletic 0-1 Edinburgh City
Spartans 0-1 East Fife
Stirling Albion 3-1 Elgin City
Scottish League 1
Annan Athletic 2-1 Dumbarton
Arbroath 3-0 Inverness CT
Montrose 2-2 Alloa Athletic
Stenhousemuir 2-1 Queen of the South
Adama Sidibeh's rather fortunate goal proves decisive and puts St Johnstone into the hat for the Scottish Cup quarter-finals.
Not a game many will be watching back, but Simo Valakari and the Saints fans will take it.
That's four wins on the spin for the Perth side.
Image source, SNSDundee seal progression after blowing away their Championship opponents in the first-half.
Really, it was made far too easy for them thanks to some calamitous Airdrie defending that gifted them numerous chances and four simple goals.
Lyall Cameron got two, Clark Robertson nodded in one, and Oluwaseun Adewumi got another before a more even second half.
Image source, SNSThe Bairns are back at the top of the Championship, with the returning Scott Arfield hitting a hat-trick.
The visitors had led 2-1 but lost Brian Graham to a second booking before half-time.
Image source, SNSA double from substitute Tete Yengi adds to Ryan McGowan's opener to see Livingston comfortably through to the quarter-finals.
Cove put up a good fight but were made to pay for spurning big opportunities to equalise at 1-0.
The treble is still on for the Lions... Well, a treble.
Image source, SNS
Adama Sidibeh
A late, late goal for St Johnstone just as extra-time looked inevitable.
Graham Carey lets fly from distance and it flicks off Adama Sidibeh's head, leaving Hamilton keeper Dean Lyness stranded.
Simo Valakari's side are heading for the last eight.
WATCH: Sidibeh breaks the deadlock
Dundee 4-0 Airdrieonians
Jane Lewis
BBC Sport Scotland at Dens Park
Airdrie have shown a bit more in this second half. They have tested Jon McCracken and really should have scored, but the home side don't seem overly rattled with their very healthy lead.
Image source, SNSTete Yengi
He's done it again!
Tete Yengi smashes the ball into the bottom corner with his left foot after another Livingston counter-attack.
Game over.
WATCH: Yengi scores his second
Tete Yengi
Seconds after that glorious opportunity for Cove, Livingston kill the game.
Substitute Tete Yengi's left-footed effort from the centre of the box finds the bottom right corner!
WATCH: Yengi doubles Livingston's lead
Livingston 1-0 Cove Rangers
William Gillingham has to score for Cove!
He heads wide from 10 yards out. Massive chance.
St Johnstone 0-0 Hamilton Academical
Makenzie Kirk could have had a hat-trick in this game.
The striker ghosts into space in the Accies box again, but his glancing header goes just wide of the far post.
WATCH: Kirk glances wide for St Johnstone
Leon McCann
St Johnstone 0-0 Hamilton Academical
What a block to deny St Johnstone.
Stephen Duke-McKenna has been lively down the right wing since coming off the bench, and he fires a cross into a dangerous area that falls to Makenzie Kirk's feet.
He looks sure to find the back of the net, but Reghan Tumilty bravely throws himself at the shot and averts the danger.
St Johnstone 0-0 Hamilton Academical
A huge chance for Hamilton to hit the front.
Oli Shaw, on as a substitute, springs the offside trap and goes through one-on-one with Saints keeper Andy Fisher, but can't find the corner, with the keeper pushing his shot away.
Dundee 4-0 Airdrieonians
The visitors win a free-kick right on the edge of the box - which looked like it might have been inside the box. Adam Frizzell curls the set-piece against the crossbar.
Adam Frizzell then misses a sitter in front of goal, shooting tamely at Jon McCracken after a fresh-air kick from one of his team-mates.
Dundee then fly up the other end and Simon Murray pulls the ball out the sky with a deft touch and chips a volley onto the bar.
Livingston 1-0 Cove Rangers
That should be 2-0.
Jamie Brandon's header from Robbie Muirhead's corner looks as though it's nestling in the bottom left corner but Nicholas Suman produces a full-stretch save to deny the Livingston captain.
What a stop!
St Johnstone 0-0 Hamilton Academical
There's really not much happening at McDiarmid Park.
Elliot Watt's free-kick from the right is easily cleared by the Hamilton defence.
