The best last name ever.

Szymanowski (1882 - 1937)

So there's not much at all for this guy, besides his awesome last name.
He is the next famous Polish composer after Chopin, and he happens to be quite impressionistic. His influences include Chopin (of course), Scriabin (of course), Debussy (of course), Strauss, and Stravinsky. He's basically a impressionistic Chopin. So he's basically a copy-cat of Scriabin. His music is pretty interesting, and never played.

The good stuff for solo piano: Etudes Op. 4, and Op. 33, 3 Sonatas, and some good character piece stuff.