i don't think people mean beginner in the sense that you just started playing. id say beginner is something like 1499 and under. intermediate ratings are probably 1500 to 1750, 1750 - 2000 is a very strong player and 2000+ is master type players.
all this is just a guess though.
I find a player rated 1600 on fics= a us chess federation of around 1900 to 2000 on chessbase about the same on chessclub assistant a 1600 about 1650.I have a good friend who at one time had a uschess rating of 2100 an he tells me its hard for him to hold around 1700 to1750 on free internet chess server.This all at 5 min blitz an i see him run over a few masters in the low us chess federation 2200 to 2250 range.Also there is a lot of cheating going even at blitz now on the internet.my high on fics was around 1650 had a few bad days an now at 1565.point is a 2000 player in my opinion on fics is more like a 2350 player.Now at the higher levels players such as nigel short the rating falls back to what it should be.So at low levels add about 350 pints on chess base an fics on chess assistant club add about 50 to 75 points with icc i do not play there but i hear its about like fics an chessbase add about 300 to 350 points.Not sure about this server after i lost afew games iwas wining easy because the server knocks me off i told myself never again will i play here untill this mess is cleared up.A shame as i love everything else here an its why i have not upgraded my account when this fixed i pay only then.
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i been playing chess for a while off and on. My ratings are about 1100 does this mean im a begginner player? What rating would i have to become to be intermediate or advanced? Grandmaster or Master? Anyone Know?