Thanks for calling me naive! I love being insulted by somebody I've never even met! Made my day.
But I'm afraid you're full of sh*t. Czerny wrote a huge variety of studies that address nearly every technical problem there is in piano playing (except possibly leaning over and plucking the strings with your fingers.)
Are you sure you're not thinking of Hanon? Assuming you're capable of thought at all, of course.
I wouldn't exactly call it an insult; I was merely referring to your statement about Czerny. Also, I was not thinking of Hanon, but the same thing could be said of him.
In any case, since you're an expert on the subject, perhaps you can suggest Czerny studies that will greatly facilitate the learning of the following:
Brahms-Paganini Variations - book II, 7th variation
Paganini-Liszt - La Campanella
Chopin - Op. 10 No. 1
Ligeti - der Zauberlehrling étude
Beethoven - Hammerklavier sonata, exposition
Ravel - Gaspard de la Nuit (Scarbo)
Bach - chromatic fantasy and fugue
Thank you in advance for sharing your expertise on this matter.