Try this. I found it very informative. It was the sizes of the different countries that I didn't know, not so much the positions.How did you get on?

http://www.rethinkingschools.org/just_fun/games/mapgame.HTML

I got confused with all the '-stans' and put Mali where Chad belongs.

That was fun... Correct on the 'stans' but,like Oz, put Mali and Chad in each others places!

I have a pre-WW1 atlas, with many of these countries marked on it, but I learned my geography at a time when the USSR ruled and Yugoslavia existed, It is very interesting to see many of the old countries back again after a period of dormancy.
Now, if only I could find Ruritania...

My geography is quite good. I use this site to practice:
http://lizardpoint.com/fun/geoquiz/index.php

Try it, it's more comprehensive