Yeovil failed to keep up, as they lost 4-2 at Port Vale. The defeat was disappointing as they had fought back to level from being 2-0 down.
Forest capitalised on the Glovers' loss, as they hammered Huddersfield 5-1.
Junior Agogo hit a brace, whith Lewis McGugan, Grant Holt and James Perch also netting in the rouyt.
Bristol City also rose above Yeovil, with Kevin Betsy scoring the only goal against Northampton.
Oldham halted their alarming slide down the table with a 1-1 draw at Carlisle United.
The Latics had lost their last four league games to slip down to fifth from second, but took the lead at Brunton Park through Chris Taylor.
Derek Holmes grabbed a late equaliser for the Cumbrians, who remain just outside the play-off places.
Blackpool's play-off hopes took a stumble, as they twice had to come from behind to earn a 2-2 draw at Gillingham.
Mark Robins' reign as caretaker manager of Rotherham got off to an exceptional start, with a 4-1 thrashing of Yorkshire rivals Bradford.
Martin Woods and Delroy Facey scored a double each, although the Millers remain well adrift of safety at the bottom of the table.
Bournemouth eased to a 2-0 win over Doncaster, with Brett Pitman and David McGoldrick netting either side of the break.
Former Iron winger Tom Brighton scored as Millwall beat Cheltenham 2-0, with Darren Byfield also netting for the Lion's.
Crewe and Brighton played out a 1-1 draw, while Swansea's play-off hopes took a further dent after a 0-0 stalemate with Leyton Orient.