Steve Reich’s seminal 1967 Piano Phase has always been a fantastic challenge for any two pianists. But here is the Russian Peter Aidu (b. 1976) going them all one better, by performing both parts solo, on two pianos at once.
Released on the netlabel Top-40, the complete recording is available to freely download at Archive.org. (There’s also a link there to further information on the pianist and release, and the MP3 download at Archive.org is fine, but I would recommend NOT visiting directly the Top-40 homepage. There may be some malware lurking there!)