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Clare nets penalty after Boyce brought down by Doyle
Falkirk hit frame of goal three times
Rangers, Inverness CT & St Johnstone all into last-eight draw
Aberdeen & Kilmarnock (19 Feb) and St Mirren & Motherwell (18 Feb) will replay
Ayr United v St Johnstone (15:01)
Ayr United: Doohan, Houston, Bell, Muirhead, Harvie, Kerr, Gillespie, Kelly, Forrest, McCowan, Drinan.
Substitutes: Hare-Reid, Roscoe, Smith, Malley, Moffat, Tiffoney, McKenzie.
St Johnstone: Clark, Ralston, Kerr, McCart, Booth, Wright, Wotherspoon, Craig, McCann, May, Hendry.
Substitutes: Parish, Gordon, Tanser, Kane, Butcher, Jones, Holt.
This afternoon's two Championship games could have a big bearing on the relegation battle, with three of the bottom four in action.
Dundee, meanwhile, can move back into the top four with victory over Partick Thistle.
St Mirren v Motherwell (15:01)
St Mirren: Hladky, Hodson, McCarthy, Famewo, Waters, Foley, MacPherson, McGrath, Durmus, Jakubiak, Obika
Substitutes: Lyness, K. McAllister, Henderson, Andreu, Mullen, Cooke, Morais.
Motherwell: Gillespie, Grimshaw, Hartley, Gallagher, Carroll, Donnelly, O'Hara, Polworth, Aarons, Long, Hylton
Substitutes: Carson, Tait, Cambell, Watt, Manzinga, Mugabi, Ndjoli
Aberdeen v Kilmarnock (15:01)
Aberdeen: Lewis, Logan, Considine, McKenna, Devlin, Ferguson, Campbell, Ojo, McGinn, Kennedy, Cosgrove.
Substitutes: Cerny, Hernandez, McGeouch, Hedges, McLennan, Anderson, Main.
Kilmarnock: Branescu, O'Donnell, Del Fabro, Broadfoot, Hamalainen, Johnson, Power, McKenzie, Dicker, Kabamba, Brophy.
Substitutes: Koprivec, Hendrie, Kiltie, Millen, St Clair, Taylor, Connell.
So Rangers are the first team through to the last eight.
Who will join them? Stick with us to find out...
Hamilton Academical 1-4 Rangers
Neil McCann
Former Hearts & Rangers winger on BBC Sportsound
Quote MessageWhat a finish Scott Arfield. He's generated so much power with the instep. Goalkeepers just don't save them
FT: Hamilton Academical 1-4 Rangers
Derek Ferguson
Former Rangers and Hamilton midfielder on Sportsound
Quote MessageSome cracking goals. The one from Arfield is absolute top drawer, Aribo as well. It's a well earned victory for Rangers
Image source, SNSSecond-half goals from Joe Aribo, Alfredo Morelos and Scott Arfield overpowered Hamilton and secured Rangers' progress to the Scottish Cup quarter-finals.
Accies fought valiantly and hit back from Arfield's opener with a fine Lewis Smith striker before the break.
But Rangers made their class count in the final hour, with Arfield's strike in stoppage time a thing of beauty.
Image source, SNSScott Arfield netted in each half for Rangers
Scott Arfield
Scott Arfield grabs his second and Rangers' fourth with a cracking strike in off the underside of the bar from outside the box.
Hamilton Academical 1-2 Rangers
Alfredo Morelos nearly sniffs out a second goal with a dart down the left and a shot that loops over Luke Southwood before creeping wide.
Hamilton Academical 1-3 Rangers
Derek Ferguson
Former Rangers and Hamilton midfielder on Sportsound
Quote MessageIt's a real striker's goal, isn't it? He's the one that reacts. It's a great header in the end up. That should be game, set and match
Alfredo Morelos
The Alfredo Morelos goal "drought" is over! The Colombian bags his first strike in five matches, heading home from six yards after Greg Stewart's attempted shot deflected into his path.
It's now 29 goals this season for Morelos.
Hamilton Academical 1-2 Rangers
Neil McCann
Former Hearts & Rangers winger on BBC Sportsound
Quote MessageWhat a chance. Lovely ball in. Edmundson did a right good job on Gogic and made it as difficult as possible but he should be scoring
Hamilton Academical 1-2 Rangers
Alex Gogic is picked out inside Rangers' six-yard box but the Accies defender's header skews off target.
The hosts won't get many better chances than that.
Hamilton Academical 1-2 Rangers
Image source, SNSJoe Aribo's first goal in nine matches restored Rangers' lead
Hamilton Academical 1-1 Rangers
Derek Ferguson
Former Rangers and Hamilton midfielder on Sportsound
Quote MessageGreat imagination in his play. He'll be pleased with his display
Image source, SNSHamilton Academical 1-2 Rangers
Another Rangers switch, this time it's Steven Davis on in place of Ianis Hagi.
Hamilton Academical 1-2 Rangers
Rangers have a free-kick in a dangerous position just outside the box.
James Tavernier gets it up and over the ball but it's a comfortable enough save for Luke Southwood.
Hamilton Academical 1-2 Rangers
Borna Barisic, still feeling the effects of the earlier challenge from Lewis Smith, makes way for Andy Halliday in Rangers' first substitution.
Hamilton Academical 1-2 Rangers
Neil McCann
Former Hearts & Rangers winger on BBC Sportsound
Quote MessageGood finish from Joe Aribo. He just opens up his right foot. But it's all about Ryan Kent. He just burns past Ryan McGowan as if he's not there. It's a super goal