Mate in 3


I solved it! My puzzle rating (I assume you mean that) is 2300 (not neccecarily (I think I spelt that wrong) a beginner but I like puzzles and helping beginners))

This isn't for beginners. It's too long and complicated. I don't think you know what a beginner is.
3 moves is definitely fine, it's mainly about pins and backrank mate which are basic tactics

This isn't for beginners. It's too long and complicated. I don't think you know what a beginner is.
3 moves is definitely fine, it's mainly about pins and backrank mate which are basic tactics
A real beginner would be hopelessly lost even at move 1. It's difficult to see that the h-pawn can't take (pin) and that Kg8 is illegal (a2 bishop).
Pins and basic tactics are actually pretty advanced concepts.

you do understand that the majority of respondents claiming they have solved it actually have not, right?
For most players, "solved it" means they guessed wrong until they finally guessed right.