Dunno yet. It is about 8 or 9 minutes long, some 33 pages, so it goes fast. Lots of double notes over a walking bass.
It sounds difficult and looks difficult. But who knows, may it is like the Khatchaturian Toccata and it turns out it fits really well.
We'll see.
BTW, Shchedrin has a bunch of piano concertos with orchestra, not to be confused with this one, which is a concerto for piano solo that is a transcription of his first concerto for orchestra (without piano).