As people above have said, he didn't do much solo piano - however he did do some major 4 hand pieces - I think the Slavonic Dances were first done for 4 hands and a suite called Legends. I have learned the popular Humoresque (no. 3? I don't know) from his set of Humoresques - a fun, light piece.
I just looked on Amazon and Naxos has a disk called "Complete Solo Piano Music" and it has three opuses - a mazurka set, the humoresques and a set called silhouettes.