If you're playing a good long game against age 9 then I'd say it's about 1500. If you play a long game against age 10 then about 1800. Age 11 about 2100.
Estimate my rating based on 'play magnus' app

one thing I know is I have studied chess seriously for about 20 years. I've played in serious competitions otb and also played a great many players. My rating is about 1800. I've played against both masters and experts. What I'm trying to say is Magnus 9 is definitely not 1500. I've played it up to 9 years and 11 months and I can honestly say it is not intermediate strength at all. I would say 9 years 0 months is at least 1600-1700. As you go up, I believe at 9yrs 5 months it jumps up to at least 1900. At 10 year's you enter master range. Still it's a chess program, so I believe there is no real comparison for rating. Magnus is harder than you think.

Yeah boy! Finally beat Magnus 9 yrs 11 months. that's it for age 9. now onto 10!!! :D http://play-magnus-replay.azurewebsites.net/#/byFmJTTyn

Nek,
USCF or FIDE?

That whole presumption on rating individuals based on what the personal belief is can categorically stigmatize others into assuming a role that sets them up for failure.

Cool. I am 36 as well. Started playing 12 years ago...

The play Magnus app is sort of odd in that the virtual Magnus (at age 10 at least) is usually extremely difficult to beat, but every once in a while someone like me is able to get a win. I'd guess that my rating would be no higher than around 1500-1600 USCF (which might possibly be too generous... I really have no idea), yet I've beaten an engine around 1800-2000 elo and drawn against an engine billed at 2800-2900 elo... Play Magnus is rough but he has his off days lol.

so I got the magnometer and honestly thought what good is it anyway? But when I used it I could see the board more clear and played a really great game against 10. I actually was up a pawn and winning and really should have won but at a crucial moment I made a poor decision and saw the game slowly start to equalize. At least I was able to draw. This play Magnus app is great! I feel like I'm really starting to improve. :)

def the Magnometer is fun and helpful for monitoring strength and weakness of moves, however I am skeptical of using it too much because the meter itself is telling us rather than doing the assessing on our own, which is how it always goes. great analysis tool though! it's a nice addition. it kind of reminds me of the meter in the small fish app for Apple.

def the Magnometer is fun and helpful for monitoring strength and weakness of moves, however I am skeptical of using it too much because the meter itself is telling us rather than doing the assessing on our own, which is how it always goes. great analysis tool though! it's a nice addition. it kind of reminds me of the meter in the small fish app for Apple.

I don't think you can estimate anyones rating based on the play magnus app. For example lets say that you defeated magnus aged 10... did you manage that by thinking 10 minutes for every move or did you blitz out your moves in a few seconds? The difference is obvious.

I don't think you can estimate anyones rating based on the play magnus app. For example lets say that you defeated magnus aged 10... did you manage that by thinking 10 minutes for every move or did you blitz out your moves in a few seconds? The difference is obvious.
Just got a draw via threefold repetition against Magnus 24. Lol. Where do I apply for my GM title?
[Event "?"]
[Site "?"]
[Date "2015.02.27"]
[Round "?"]
[White "Mjazar"]
[Black "Magnus Carlsen (Age 24)"]
[Result "1/2-1/2"]
1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. d4 Nd6 6. Bxc6 dxc6 7. dxe5 Nf5
8. Qxd8+ Kxd8 9. Nc3 h6 10. h3 Bd7 11. b3 Kc8 12. Bb2 Ne7 13. Ne4 Nd5 14. Rfe1
Bf5 15. Rad1 Bb4 16. Re2 Nf4 17. Re3 Nd5 18. Re2 Nf4 19. Re3 Nd5 20. Re2
1/2-1/2