Arsene Wenger was pleased to mark his 21st anniversary at Arsenal with a 2-0 win over Brighton.
Nacho Monreal and Alex Iwobi scored either side of the break as Arsenal moved level on points with Chelsea on Sunday afternoon.
The Seagulls were the fourth team in a row in the Premier League to draw a blank against the Gunners, who have not conceded in the top flight since sinking to a 4-0 defeat to Liverpool on August 27.
It was a result which proved something of a turnaround for Arsenal, who have won three and drawn 0-0 at Chelsea since their Anfield humiliation.
“We kept the clean sheet and of course got three points,” Wenger told Match of the Day.
“We have played more fluent than today but playing Monday, Thursday and today, it was important to get three points.
“We eased off in concentration and decision making and then it becomes a bit harder.
“The question mark is there when you change so many players (throughout the game), can you keep cohesion? It was a difficult week because the game at Bate was a difficult game. I am pleased.”
“Offensively we were in a bit of a doubt, the fluency was sometimes there, sometimes not,” Wenger told BT Sports.
“In the end for us it was a very testing win. For us it was a very testing week, we had two home games, one long away trip in the Europa League. We won the three games and that’s very positive.”
Asked what he had learned most from his time in north London, he replied: “I would say humility.”