Hi to both of you !
no, because the trill ends with grace note d, eb, and then b-d, so you need to have 2 available to hit the d. In the time between my post above and now I tried it, and I'm better at the fingering I listed above (1-3, trill 3-4, then 2,3, 1-2) than trying to trill 3-5. but the edition I have (schenker) lists 3-5 for the trill.
Indeed, there is the appogiatura which prevents us to trill with 2 and 3 (which, as you say, would be much more easy).
I don't have the Schenker edition. Thanks for their fingering. I own Henle edition by Bertha Antonia Wallner and fingering by Conrad Hansen, edited in 1975.
Henle gives no fingering for the trill, suggests to play the D appogiatura with 2 and the chord D-B with 1-2. That is the same fingering you advised.
About those Liszt exercises, thank you for the recommendation, but I'm afraid they are very advanced, too hard for me. I don't know which grade I am (I have no teacher). This sonata is the hardest piece in my repertoire. It is a big challenge for me. Besides the inventions I have listed, I have played :
Bach WTC Book 1 : Prelude in C major and C minor (the fugues are still too hard for me !)
Beethoven Opus 49 (both)
Beethoven's Moonlight Sonata (first movement only)
Beethoven's Pathetique : the others movements
Chopin Preludes Opus 28 no. 4, 7 and 20
Chopin Waltz no. 6 Opus 64 no 1
Mozart Sonata no 5 KV 283 (first and second movement)
Mozart Sonata no 16 KV 545 (first and second movement)
Schubert Moments musicaux no. 1 and 3, Opus 94
I have never played a Liszt piece and I think I'm not ready for them yet. I should find something easier. And I think that a Chopin Etude might be too hard also. What would you suggest to gain finger independance ?