how to solve puzzles?

After 1...Rhe8,  there is one move for white.  2. Qxb7#

sorry.

You have to find the solution yourself. One of the roles of puzzles is to help you develop your skills in searching for the best move in a position. Generally, the solutions are either winning material or mate. The moves are nearly always forcing (check, capture, or threat). There is a chess.com lesson on forcing moves and you will find videos on you tube. It will help if you understand this concept. Puzzles also rely on basic tactical motifs such as pins, skewers, etc. so learn these first. A puzzle can have multiple targets, so there may be a variation that wins the queen and another that is mate. If you go for the queen and dont see the mate you lose the puzzle. These will catch you out from time to time. It's a case of look for a move then look for a better one.

is it a good move to win by rook or as long as you've won

There are several types of puzzles. If you have a forced mate in the position, that is the solution. If you cannot mate, then you usually can win a piece. In the somewhat harder puzzles there are ones, where you have to save a draw (perpetual check or stalemate) in an otherwise lost position. Some puzzles are also defending from being checkmated. You'll have to figure out, which of these types the position is. The easier ones tend to be 1-3 move sequences, the more difficult ones can have longer combinations.

Thank you all for your help!

I think i understand the logic. At first i thought that the purpose of the puzzles was to solve a specific problem, so i was looking for the instruction. But now i understand that searching for the instruction is actually part of the puzzle.

I wonder why the puzzle and the other post made by the im were deleted.