what does this naka tweet mean?

... yes and the reason is someone had to be the champion. Would the stakes have been any more different if Naka played Anand? 

Naka is underestimated and Carlsen is over-estimated. Those are the facts. 

Holds an edge? In what sense?

Naka is known for being the ''blitz king''... I have never heard anyone refer to Carlsen in such a way. 

Carlsen has a slight edge in their individual blitz games. According to chessgames, Carlsen has beaten Nakamura 5 to 4 in blitz games. Well, at least according to chessgames.com.

Well you'd lose your wager. You should avoid betting against well known facts with guesswork.

What known facts? I think a 4-5 win to Carlsen in a blitz match isn't much to go home with. He won it by a single point... big deal!

Anand last to Carlsen embarrasingly a lot worse than that. Naka is definitely well on his way and in my opinion, is Carlsens best and most hopeful rival. Those are the facts!

http://www.thechessmind.net/blog/2011/1/5/the-carlsen-nakamura-match-results.html

Why is this kid still arguing?

That is blitz. The match scenario is in classical games. Nakamura has not won a classical game against Carlsen. People like Caruana and heck, even Anish Giri, have. It doesn't seem at all feasible the Nakamura will pose threats to Carlsen in a classical match scenario. Blitz is pretty much a separate scenario. There is a huge difference between a 10 minute total time game and a game that lasts literally seven or so hours. Heck Caruana once defended an inferior endgame against Karjakin for 10 1/2 hours. I still don't see how Nakamura's blitz record against Carlsen has literally anything to do with their classical record. I just don't see it.

Well I do see it. Nakumara has got better and better and better over the years. Heck, even Garry Kasparov wanted to take him as his prodigy. I doubt he would have even considered Nakamura after his experience with Carlsen if he wasn't ''good enough.'' I don't care about the differences, whether he has won a standard against him or not. Given time he will. Given more time, I think Nakamura has a very good chance of being his next rival.

The known fact that Hikaru has never won a classical (as in long time control) game vs Carlsen in a tournament. Can you start paying attention to what you're replying to?

I know this, but you are working on a very large presumption... I assume you think he can't?

I'm not so sure of what other people are saying, but I personally think Nakamura's lack of wins in classical chess disqualify him as Carlsen's biggest rival.

He hardly ever plays standard... but I have heard him myself, he considers Carlsen as his rival and no doubt he is Carlsens. The underestimation of Naka just makes me a sick. 

He a genius on the board and anyone who watched and studies his games know this. I don't care whether Naka has won a standard against him or not... I'm only concerned about whether Naka is a true rival, and yes... he is. He's actually the best rival in my opinion/ 

I think whether he has won a classical game against Carlsen will have a pretty big effect on whether he would be a serious rival for the WC. Because, you know, its a classical format competition.

Please, understand: When they say "classical" they are talking about long time control games. The "normal" tournaments that are not labelled as "blitz" or "rapid".

And of course, Nakamura plays a lot of long time control games.

It's not about "style" it's just about "time control".

http://www.chess.com/echess/goto_ready_game

Just check in his Fide Profile:

http://ratings.fide.com/card.phtml?event=2016192

And then click in "Click to view all previous previous" (in the bottom left) to see his "Individual Calculations Full Report", so you can see also previous years.

Starting from March 2012, also his games from Rapid and Blitz are registered.

You will see them like this:

Standard - Rapid - Blitz

You will see that he plays much more standard tournaments and games than rapid and blitz tournaments.

And even before that, you can see that the only month before March 2012 when he didn't play an standard game was in May 2011.

Even if he does, the underestimation of his abilities are really overlooked here. I don't know if it is because some people consider him a ''punk''... but as far as I am concerned, anyone who can't see him being his rival obviously can't see talent when they see it. 

The problem isn't that he has a lack if talent , it's that Carlsen has a massive edge over the most talented players in the world. In addition Nakamura struggles with Carlsen more than most around his level.

http://en.wikipedia.org/wiki/Hikaru_Nakamura