What Chopin piece is the most difficult to play?

[C-A]

A cousin of mine is asking what Chopin piece is the most difficult to play?
He's a big Chopin fan and gives tons of options!

[pseudopianist]

The concertos of course but otherwise it would probaly be Barcarolle,4rth ballade,10:2 or maybe Fantasie in F minor

[quantum]

Variations on "La ci darem la mano" Op.2

Very technical, and extreemly imaginative with the variations.  Probably as difficult as the concertos. 

[moderatissimo]

perhaps op. 46 Allegro de concert ?

[nanabush]

How come the etudes aren't on the poll?  Especially 10/2 and 25/6... even Winterwind or 10/7 which are also more difficult than a few of the pieces listed above...

[thalbergmad]

Variations on "La ci darem la mano" Op.2

Very technical, and extreemly imaginative with the variations.  Probably as difficult as the concertos. 

Have to agree with this. Very difficult.

[C-A]

How come the etudes aren't on the poll? Especially 10/2 and 25/6... even Winterwind or 10/7 which are also more difficult than a few of the pieces listed above...

Sorry about that... He told me not to put it in the poll I made.
It's just that my cousin has no problem getting through all 27 etudes, even the tough ones like 25/6, 10/2, 10/1, 10/7, and others. He's already learned them all, and he's also the oldest- 22yrs. old.

[Hamfast]

24 Preludes

[nanabush]

Second that, I can play a few of them, but some of them I have a harder time starting than a few of his etudes at start.... I think some of his preludes match or overcome a few of the etudes...namely 16, 19, 24