Yes, they cheat!! OK not really, but it seems like it. Took me a long time to get used to the retuning of the strings, make sure you get them the right way round, String 1 is the little string, String 6 is the big one :-)
As stated by others, difficult but all the more rewarding when it works. It will really help if you get a tuner, my lovely wife bought me a clip on digital tuner for my birthday just a few days after I received this music and that really helps. I got the Joyo JT-12B and it is cheap and cheerful but does the job and makes retuning the strings sooo quick and easy. You can get em on Amazon too.
So yes, go for this music if you are really into Coldplay but you will need patience and/or talent.