The Dutchman struck in the second half as the Bavarians, chasing a Bundesliga, Cup and Champions League treble, took advantage of Dortmund's slip-up on Friday when they were held 4-4 at home by VfB Stuttgart.A scrappy match ended with a let off for Bayern, who have 60 points from 28 games, when Almog Cohen struck the post with a long-range effort.
The top two have six matches each to play with Bayern, who made it seven wins in a row in all competitions, visiting defending champions Dortmund on April 11.
"The summary of the weekend is that it's all back in our own hands, in all three competitions," said Bayern's sporting director Christian Nerlinger.
"I have great faith in this team. They're showing they can cope with a match every three days and that they're physically in great shape. I'm looking forward to the run-in."
Nuremburg and Bayern produced a scrappy opening hour although the game came to life in the final third after Bayern brought on Franck Ribery and Bastian Schweinsteiger.
Their winner came when Nuremburg's Dominic Maroh gave the ball away just outside his own penalty area, Ribery's shot was stopped by goalkeeper Raphael Schaefer but Robben collected the rebound and scored from the edge of the area.
Mario Gomez headed against the crossbar for Bayern, who then had a lucky escape when Neuer misjudged Cohen's dipping 30-yard shot and ended up punching it on to the post.
Koo Ja-Cheol fired Augsburg ahead in the 19th minute, Lukas Podolski equalised for Cologne with a penalty in the 42nd only for Angola forward Nando Rafael to put the home team back in front with another spot kick on the stroke of halftime.
"We were very bad, we made big mistakes," said Solbakken.
To make matters worse for Cologne, two other relegation candidates won.
Marcell Jansen's 29th-minute goal was enough for Hamburg, the only ever-present team since the Bundesliga was founded in 1963, to end a run of four successive defeats
Kaiserslautern extended their winless league run to 18 matches.
Julian Schuster and Daniel Caligiuri scored in each half in
Freiburg climbed to 13th place with 31 points from 28 games, one ahead of Hamburg and Augsburg.
Eric Maxim Choupo-Moting scored twice in