Two goals from Fabian Schar helped Switzerland move ever closer to a place at the 2014 World Cup finals as they beat Norway in qualifying Group E.
The Basel defender scored early in each half to pull the Swiss even further clear at the top of the standings and leave the Scandinavians battling to finish as runners-up after a third defeat in the competition.
Norway goalkeeper Rune Almenning Jarstein had to be alert from the start with Gokhan Inler and Haris Seferovic both creating early chances.
And Switzerland's pressure paid off after 12 minutes with an Inler free-kick from the left wing deftly headed home from close range by Schar.
The home side struggled to come up with answers at the other end, although there were signs of life after 26 minutes when Tarik Elyounoussi forced a save from visiting keeper Diego Benaglio before Joshua King headed the rebound wide.
But Switzerland were by far the better team and Jarstein was forced to come to the rescue again as Schar threatened with another header as the interval approached.
There was no let-up for Norway after the interval and they had Jarstein to thank once more for keeping them in the contest, with the Viking stopper denying Xherdan Shaqiri from near the penalty spot.
But the visitors were two in front after 50 minutes with an almost identical goal to the first. Inler pumped in another free-kick from the left and Schar rose highest to meet the ball and direct it high into the net.
The Swiss were threatening to overrun their opponents and Valentin Stocker tried to add his name to the scoresheet minutes later but his left-footed drive was well held by Jarstein.
Norway eventually began to find some rhythm, though, as the clock approached the final 10 minutes and Stefan Johansen gave the visitors something to think about with a left-footed drive which was just high of the mark.
Ruben Yttergard Jenssen also had a late chance to salvage some pride in front of their own fans but pushed his effort wide of the right post.