I meant number 2 
and I disagree with some of the things that people wrote, I do believe that every *professional pianist* played similar pieces and have pretty much the same basic i don't believe that there is any pro pianist who hadn't play beethoven sonata for example
All of them have played a Beethoven Sonata because that's significantly important repertoire to piano. They didn't necessarily learn a Beethoven Sonata as they were learning the piano. Though they probably did. And besides, Beethoven Sonatas are for everyone who can play the easiest one to the very best of the best. That's why they're regularly performed and recorded.
Other pieces like the Beethoven Sonatas, that are regularly performed and recorded are:
Bach, Preludes and Fugues, Partitas, suites
Mozart Sonatas, Concertos
Beethoven Sonatas, Concertos
Chopin Ballades, Etudes, Nocturnes, Scherzi, Sonatas, other major pieces like the Barcarolle, concertos
Liszt, Concert etudes, paganini etudes, transcendental etudes, Vallee D'Obermann, Sonata, Concertos, Mephisto Waltz 1, Hungarian Rhapsodies,
Brahms, Intermezzos, Ballades, etc. Concerti
Schumann, Papillon, Carnaval, Toccata?, Fantasie?, Fantasiestucke, concerto
Mendelssohn, umm concerto in g minor. Sorry, don't know much Mendelssohn
Grieg Concerto
Scriabin, Etude 8/12, Sonatas
Rachmaninoff Preludes, Etudes-tableaux, Concerti, sonata no. 2
Prokofiev Sonatas, Concerti, Toccata
Debussy, Images, L'Isle Joyeuse, Estampes
Ravel, Jeux D'eau, Miroirs, Gaspard de la Nuit, concerto in G, Tombeau de Couperin
This isn't a list of the best works. This is a list of works that are regularly performed and recorded. There is no order in which to learn them but every "good" pianist has probably tackled many of the pieces from this list.