If Magnus quit chess for 20 years and then decided to come back, what would his rating be?

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FrancisCominelli

Would a 50-year-old Magnus Carlsen who hadn't even looked at a chess board for 20 years still be GM strength? 

RSB20210

No
tygxc

Yes.
Fischer came back in 1992 after 20 years of inactivity and was still grandmaster strength 2650.
http://www.chessmetrics.com/cm/CM2/PlayerProfile.asp?Params=199510SSSSS3S038178000000111000000000000010100 

NikkiLikeChikki
Karpov is 70 and his FIDE blitz rating went UP in the in the last year. Carlsen would certainly still be GM strength. Super GM, though? Possible.
Jenium

He'd still have the same rating since he didn't play rated games in the meantime.

snoozyman
His rating won’t change unless he deletes his account.
FrancisCominelli

How do you delete a FIDE account? 

DreamscapeHorizons

2640 if he didn't study or keep up with the game.

Crikey_Gambit
Chess is sports like in concept; our ability wanes proportional to skill level as we age.
I have come back after a 25-year hiatus, my chess skills suffered, but there is muscle memory. All the forgotten patterns, openings and tactics are beginning to emerge again. I cannot play at my old club/tournament level of 1600-1800, but I can still play a reasonable game, and I'm improving almost daily.
A super-GM would lose some ability but, his muscle memory would be impressive. I would expect 2500+ Elo within a short period and advance slowly after that as the skills return
BCchessnut
NikkiLikeChikki wrote:
Karpov is 70 and his FIDE blitz rating went UP in the in the last year. Carlsen would certainly still be GM strength. Super GM, though? Possible.

Karpov

Korchnoi

Is it just Russian  Grand Masters, whose names start with "K", that can remain so good as they age?

llama47
FrancisCominelli wrote:

Would a 50-year-old Magnus Carlsen who hadn't even looked at a chess board for 20 years still be GM strength? 

In the 2500s I imagine.

Oh ok, maybe we're assuming he actually prepares and works on chess for a year before returning... then I guess at least 2600s.

JamesColeman
FrancisCominelli wrote:

Would a 50-year-old Magnus Carlsen who hadn't even looked at a chess board for 20 years still be GM strength? 

Yes. Easily.

llama47

The better the player, the more things they do automatically, such as certain moves they wont consider. It's just how their brain is wired, it's not even a conscious act anymore.

So even with extreme rust (like not playing or even thinking about chess for 20 years) it's hard to fall more than 400 points.

Gymstar

he would not forget anything I dont think

llama47

If chess were about how much you know, then we'd never have 20 year old world champions.

Chess is performance as much as knowledge. It doesn't matter how much he'd remember.

Gymstar

yes it would

llama47

If he had amnesia and couldn't remember his name that would matter 😂

But sure, I guess I overstated it. My point was even if he remembered everything, he wouldn't be the same rating.

Gymstar

why?

llama47

I already said, chess isn't about who knows more. Chess, at least live games, is a performance.

It's sort of like thinking the person who wins gold for Olympic gymnastics knows the most about flips. That's just silly. Their 60 year old coach probably knows more about flipping in the air, but their 60 year old body can't do it anymore. It's the same for chess (but obviously not that extreme).

The average age of the top 10 in the world was just under 30 years old last time I checked.

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I mean, obviously knowledge helps, but by itself that can't wins chess games.

Gymstar

do you know about Miyachi ?