My 12 step program. A riddle and a give away

I actually have a team that is currently doing this stuff on it on discord, who knows gibberish can be actually useful? @Daniel2340 ,

I don't need the rewards, what I need are answers

Does it say 'LZNLS QTHQJ QDDHR EKNDM XERVL FSIJN FKZAE MPTUY ALSVF CZUAF LZRBC JMYBV SCXTP GMSZV GXRGF'? (The morse code at the start).

@JPukallus Certainly one would expect the plaintext to have first been encrypted ... call me crazy ...

But is it correct?

it says " i use chess computer assistance"

How do you know?

I tried combinations of caesar, atbash, substitution and vigenere ciphers, but none of it worked. I tried doing substitution in spanish too (I speak spanish, so I didn't screw it up). Nothing worked. The reason I think it isn't gibberish is because morse actually gives something with structure.
On a different note, who is this YGNR?

@Pinito_the_Bulldog should be enigma I think

who's enigma?

@Pinito_the_Bulldog YGNR is just a malignant troll and cheater alleged to have had 100s of accounts on chess.com. Supposedly she becomes very abusive and posts porn (according to their moderators). Most common theme is she just learned chess but plays better than a GM and will try to get as many correspondence games as possible. Heard she is one of the few with a permanent ban from chess.com.

I've never known her to post anything true so would be very surprised if her riddle is anything more than gibberish. If she finds lichess entertaining she will continuously escalate. The number I posted is her claimed password that she uses for her troll accounts....that could also be a lie but others say it is accurate.