Kilmarnock 3-3 St Mirren - Ilkay Durmus' cross is dropped into the net by Kilmarnock keeper Colin Doyle; Zeno Ibsen Rossi nods in equaliser from close range before Greg Kiltie guides in second

Joe Shaughnessy bullets home header; Ross Millen converts extra time spot kick with Jamie McGrath doing likewise for visitors with seconds left

Kyle McAllister nets clinching penalty with Rory McKenzie seeing his spot kick saved in shootout

St Mirren to face St Johnstone and Dundee United take on Hibernian in last four