SOME PUZZLES DONT IMPROVE YOU SO MUCH...
what puzzle is the best to improve yoor chess skills? -its all in this amazing blog post!!! https://www.chess.com/blog/levib4646/the-secret-difference-between-good-bad-puzzles
But, they would help weak players to improve their skill levels, wouldn't they just?
It is easy, but give the puzzles one by one.