Join the debate at #bbcfootballpublished at 21:04 British Summer Time 4 May 2015
Shohidur Rahman: No surprise Livermore was taken off. He was woeful.
Sanchez with deflected free-kick
Ramsey strike deflects off Brady
Sanchez rounds keeper to make it 3-0
Quinn header from Elmohamady cross
Arsenal level on points with Man City
Gary Rose
Shohidur Rahman: No surprise Livermore was taken off. He was woeful.
Can Hull fight back? Or will it once again be the Arsenal show?
Steve Bruce makes a change with Jake Livermore not emerging for the second half, David Meyler taking his place as Hull get us back under way.
The three goals conceded by Hull means they drop below Leicester on goal difference. Key for the Tigers in the second half will surely be preventing Arsenal from adding to their lead. That goal difference could prove crucial come the end of the season.
It is hard to pick out who was the best player for Arsenal in that half, with some great performances from Francis Coquelin, Aaron Ramsey and Santi Cazorla.
Alexis Sanchez, though, was brilliant. As the above heat map shows, he did his fair share of getting back and defending when needed, but also got forward when necessary and has been rewarded for his efforts with two goals.
Phil Neville
BBC Radio 5 live
"That's the best 45 minutes I've seen Arsenal play since the days of Vieira and Petit. It was magnificent... it was 'wow' football. It is winning-big-trophies type of football."
This is not about Hull being bad. This is Arsenal simply playing some brilliant football.
They are equally dangerous down either flank and through the middle and most sides would struggle to deal with some of the stuff the Gunners produced in that half. Champagne football.
Steve Bower
BBC Match of the Day commentator on 5 live at the KC Stadium
"If Arsenal do win the league in the next few years, we won't have a media debate about boring, boring Arsenal."
Phil Neville added: "I think Arsenal might actually need to become a little more boring to win the league."
Phil Neville
BBC Radio 5 live
"It was Tom Huddlestone who lost the ball, but the pass from Aaron Ramsey was magnificent. It was defence-splitting, he reversed it inside with his left foot - it was even better than Santi Cazorla's pass for the second goal."
Wonderful stuff from Arsenal and you would imagine that is that. Aaron Ramsey splits the defence with an excellent ball for Alexis Sanchez, who rounds Steve Harper and sidefoots home.
A Hull goal seems unlikely as Arsenal threaten twice in quick succession. First a low, flowing move ends with Mesut Ozil fizzing in a low effort from just inside the area, but Steve Harper makes the save, before the Hull keeper denies Alexis Sanchez straight after.
It looks like the wait for a first home win for Hull against Arsenal in the league since 1915 is set to go on, but a result from this might have been seen as a bonus anyway, with a crunch game against Burnley next on the horizon. Win that, and surely they will be safe?
Still, plenty of time to go in this game and a goal before the break would certainly make things interesting.
Adam in Darlington: Sanchez might be grabbing headlines, but Cazorla has been our best player. Excellent defending and sublime passing.
Tom Huddlestone tries to catch out the Arsenal defence with a quick free-kick from the centre circle. He finds Dame N'Doye, who peels away from his marker and has a clear sight of goal, but shoots wide. He was offside anyway.
Arsenal are running the show at the moment as they go on the hunt for a third, Steve Harper having to push behind Santi Cazorla's low drive at his near post for an Arsenal corner, which Hull manage to clear.
Phil Neville
BBC Radio 5 live
"The goalkeeper had no chance with either goal."
Oh Hull have a mountain to climb now as Arsenal add a quick second! Santi Cazorla plays a superb ball into the area for Aaron Ramsey whose shot deflects off the challenge of Robbie Brady and loops into the net.
Mahesh: The moment when you foul Sanchez to stop him scoring and then he scores the free kick anyway.
Another yellow card for Hull as Dame N'Doye clips the heels of Nacho Monreal as he tried to get away on another Arsenal break.
Can Hull get back into this? They need to push on a bit more than they did for the first half hour if they are to do so.
Phil Neville
BBC Radio 5 live
"It was a massive stroke of luck for Arsenal. Steve Harper was going to his right-hand side but the ball glanced the head of Michael Dawson in the wall and the keeper couldn't adjust."
Superb from Alexis Sanchez - with a little help on the way. From just outside the area, he curls the free-kick into the back of the net to give the visitors a deserved lead. There was a bit of a deflection off Michael Dawson, but nevertheless a well-taken free-kick.