I don't believe in memorizing endless puzzles just to improve your database of remembered combinations. I believe in being able to understand and solve any puzzle.
Here is a puzzle position
To get to the answer, we ask ourself the normal questions for all tactics, what is hanging, are they checks, and to calculate all threats (A threat to me, is a piece going to a square that will put tension on a piece or important square on the board).
Black's rooks are hanging, white has a rook opposite the queen. He wants to put more pressure on f6. After a few minutes with practical thinking, or quicker, we can find Ne4!
I still believe one must know the classical, how to trap a piece, skewers, forks, skewers and checkmate patterns, _Endgame Puzzles can be a whole different story_. Beyond that, give me a puzzle position, I will brake it down into a thinking technique,
As compared to just remembering the general pattern and hoping that when the time comes, you'll spot it in an actual game. Just curious as to the thoughts of the forumers.