Kenny Miller scored twice on his return to former club Celtic as Rangers won a thrilling Old Firm derby that both sides finished with 10 men.
Daniel Cousin fired home from a difficult angle, but Celtic's Georgios Samaras tapped in seconds later.
A Miller volley and a Pedro Mendes piledriver put Rangers in control.
Cousin and Jan Vennegoor of Hesselink were both sent off before Miller pounced on an Artur Boruc mistake and Shunsuke Nakamura curled a late reply.
Victory put Rangers on top of the Scottish Premier League on goal difference ahead of Kilmarnock as manager Walter Smith won the tactical battle.
Smith had sprung a surprise by naming Cousin, the Gabon striker who has been out of favour since the collapse of a proposed move to Fulham, in his starting line-up.
He was paired with Miller as Smith abandoned the single-striker formation he has used in recent Old Firm encounters, but there was no place even on the bench for last season's top scorer, Kris Boyd.
The more positive formation appeared to catch the home side unwares in the opening minutes with a couple of crosses whipped into the box, but a Celtic defence with fit-again Gary Caldwell replacing Glenn Loovens at its heart dealt with the threat fairly comfortably.
As Celtic's greater width began to pay dividends, Stephen McManus headed a Nakamura free-kick just wide of the far post.
The game threatened to boil over with Rangers' Kevin Thomson, for a late challenge on Nakamura, and McManus, for a spot of petulance, both being booked before 15 minutes had elapsed.
Celtic threatened twice in even quicker succession as the action heated up in a more positive manner.
Samaras, starting up front alongside Shaun Maloney with Vennegoor of Hesselink and Scott McDonald not fit enough to start, headed straight at Allan McGregor from 15 yards and Aiden McGready flashing a drive a few yards wide from longer range.
But Rangers took the lead after 37 minutes against the balance of play when Cousin skinned Mark Wilson, standing in for the injured Lee Naylor at left-back, and fooled goalkeeper Boruc by tucking the ball inside the front post from a tight angle.
The lead lasted less than two minutes, Sasa Papac's awkward attempt to clear a low McGeady cross falling kindly for Samaras to fire home from eight yards.
Maloney was first to threaten after the break, his quick feet creating the space for a drive curled wide from 16 yards.
But it was Rangers who struck when Miller, who had been having a disappointing game against his former club, volleyed home superbly after being found at the back post by an Adam cross.
Mendes put Rangers further in command when he flashed a drive past Boruc from 25 yards after being found in space by a clever Adam corner.
Cousin's continual aerial jousts appeared to test the patience of refereee Dougie McDonald and earned the striker two yellow cards.
But Celtic's one-man advantage did not last long as Vennegoor of Hesselink was sent off for lashing out at Kirk Broadfoot seconds after coming on as a substitute.
And Miller made sure that the blue half of Glasgow will have the bragging rights - at least until the next Old Firm derby - by slotting home after Boruc dropped a Broadfoot cross.
Nakamura's trademark free kick could not douse the Rangers celebrations.
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