FT: St Mirren 2-1 Aberdeen - McGinn jabs in after Durmus free kick but Lewis spills McGrath shot late on
FT: Alloa 1-0 Hearts - Trouten penalty in extra time at Indodrill
FT: Arbroath 1-3 Dunfermline - Dow, Murray & O'Hara (pen); Hilson had pulled one back
FT: Hibs 1-0 Dundee - Murphy with opener before visitors have goal disallowed
FT: Livingston 4-0 Ayr Utd - own goal, Fitzwater brace & Forrest strike for Premiership side
FT: Motherwell 1-2 St Johnstone - Hendry & Wotherspoon after Watt opener
Hibernian 1-0 Dundee
It wouldn't be a game involving Charlie Adam without him attempting a shot from his own half, but unfortunately for him it goes high and wide as he apologises to his Dundee team-mates.
Hibernian 1-0 Dundee
Alex Jakubiak thinks he's equalised for the visitors early in the second half after reacting quickest to a rebounded shot off the bar, but the flag goes up for offside.
The teams are back out. A few more goals would be nice.
Image source, BBC Sport
Image source, BBC SportJust as Dundee thought they were going to get to half-time goalless, Jamie Murphy delivers a sucker-punch to break the Championship side's resistance.
An uphill task for James McPake's men just got tougher.
Image source, SNSJamie Murphy celebrates opening the scoring on the 44th minute
No way through for Hearts yet.
It could hardly have started better any for Livingston against Ayr United with three goals inside the opening 12 minutes - Joe Chalmers' own goal followed by a Jack Fitzwater double.
And Alan Forrest's free-kick just before the break has put the hosts firmly with one foot in the quarter-final draw.
Euan Murray's seventh goal of the season has put Dunfermline in a commanding position at Gayfield, after Ryan Dow opened the scoring.
Image source, SNSYawn...
Well, that's not strictly fair. We did have a moment of excitement just before the interval.
St Johnstone midfielder Ali McCann laid the ball off with a backheel for Stevie May just 10 yards out. His effort is low and true, but Aaron Chapman got a foot on it while falling the wrong way to keep it out.
Alan Forrest
Livingston continue to run riot with Alan Forrest netting from a free-kick, his ninth goal of the season.
Jamie Murphy
Great play from Kevin Nisbet in the centre circle as he plays through Murphy on the left who fires across Jamie Hamilton into the far corner.
Motherwell 0-0 St Johnstone
Scott Mullen
BBC Scotland at Fir Park
As the quality of play descends even further along with the temperature, Tony Watt spurns a red-hot chance for Motherwell. The former St Johnstone man found himself with space at the edge of the box and a clear sight of goal, but he could only skitter a shot straight at Zander Clark.
Let's pray this doesn't go the distance.
Hibernian 0-0 Dundee
Martin Boyle hits the post!
The Australia international's cross from the right evades everyone before clattering off the post and Kevin Nisbet fires the rebound over from 10 yards.
Big let-off for Dundee just before the break.
Alloa Athletic 0-0 Hearts
As half-time approaches, it's been all Hearts but the visitors have not been able to tuck away any of their many chances.
Image source, SNSHearts striker Liam Boyce looks for an opening
Euan Murray
Dunfermline double their lead and it's that man again, Euan Murray, smashing home after a bit of a goalmouth scramble.
Hibernian 0-0 Dundee
Still goalless at Easter Road heading towards the break but James McPake's Championship side will be happy with the way they've played so far.
They've kept the hosts relatively quiet and it feels like a much more even contest compared to the group stage game a fortnight ago.
Image source, SNSMotherwell 0-0 St Johnstone
Open All Mics guest Tam Cowan is already predicting extra-time and penalties for this one.
His Off The Ball cohort Stewart Cosgrove adds: "If does go to penalties and St Johnstone lose, it's a lottery. If St Johnstone win, then it's a calculated strategy."
Ryan Dow
The deadlock has been broken at Gayfield by Ryan Dow, whose left-footed strike from just outside the box beats Derek Gaston and flies in.
Arbroath 0-0 Dunfermline
Tyrone Smith
BBC Scotland at Gayfield
An Owain Fon-Williams wonder save has kept the scores level here. James Craigen's 20-yarder looked set to nestle in the corner, but the Dunfermline keeper somehow got across to tip the ball wide.
A pretty lively game so far.