Aberdeen suffered more Parkhead pain as they lost 1-0 in Glasgow despite a solid performance against league leaders Celtic.
The Dons have now lost 24 straight league matches at Parkhead since a 3-2 win way back in October 2004.
There have been two Scottish Cup victories at Parkhead since then but the inability to take points from Glasgow is an Achilles heel the Reds will have to rectify.
But no-one this season in Scotland is taking points from the Hoops in Glasgow or anywhere else.
Victory for Celtic extended a record domestic unbeaten to 28 games, having recently beaten the best set by the club’s Lisbon Lions in 1966-67.
It also opened up a 27 point chasm on Aberdeen, a team who pushed them hard in a title race over the previous two seasons.
Aberdeen have now lost all four games against Celtic this season, including the League Cup final at Hampden last November.
However unlike in that final, this time Aberdeen went toe to toe with the champions elect.
Wanted winger Jonny Hayes took his place in the Dons starting line-up as the Reds held onto the Republic of Ireland cap beyond the transfer window.
Aberdeen rejected three bids from Cardiff City for the 29-year-old who has 18 months left on his Dons deal.
The latest bid came in on Friday, for £600,000, which was only a £100,000 increase on two previous offers.
It was rejected and boss Derek McInnes and the Red Army will have been pleased the transfer window closed with Hayes still at Pittodrie.
Retaining Hayes meant Aberdeen boss Derek McInnes named the same starting line up for the sixth successive game.
It had been a successful formula as the Reds went into the Parkhead showdown on the back of a five game winning streak.
Celtic created the opening chance in the fourth minute when following a darting run Kieran Tierney flashed a powerful drive over from 20 yards out.
The Hoops were dominating possession in the opening phase but a well organised Reds rear-guard restricted them to little in front of goal.
Dons midfielder Graeme Shinnie attempted to take the game by the scruff of the neck in the 19th minute when he powered upfield.
Stepping past two challenges he cut inside and flashed a low 22 yard shot just wide of diving keeper Craig Gordon at the near post.
Referee John Beaton waved away a Celtic penalty claim in the 33rd minute.
It was the right call as Tierney ran into Hayes in the Dons box.
Skipper Ryan Jack prevented a certain goal in the 40th minute when he produced a brilliant sliding tackle to take the ball off Scott Sinclair’s feet eight yards out with the goal beckoning.
It was the last chance of a first half where both sides had been patiently probing.
While previous encounters had been explosive this was like a game of chess. But no less engaging.
Celtic grabbed the lead in the 56th minute when Dedryck BOYATA latched onto a Sinclair free kick from the left and headed in from 15 yards.
In the 64th minute Sinclair stepped past Shaleum Logan and curled a 20 yard shot that cracked off the crossbar.
Patrick Roberts fired a shot along the face of goal for Celts in the 71st minute as the Hoops pushed forward looking for a second.
Dons boss McInnes introduced Miles Storey for leading goal-scorer Adam Rooney with 15 minutes remaining.
Midfielder Shinnie flighted a deep cross to the back post in the 81st minute that was met by Andy Considine but his header was straight at keeper Gordon.
With four minutes remaining McInnes took off defender Mark Reynolds and pitched on striker Jayden Stockley in a bid to salvage something from the game.