I try to solve at least a chess puzzle every day, it is great for improving logical thinking, keeping your mind sharp, pattern recognition, seeing the consequences of your actions, and it is also fun!
The following puzzle took me about 15 minutes to solve, simply because I forgot the power of the bishop in the a8-h1 diagonal, and fail to realize that you can break some chess "rules" such as "a knight on a rim is dim" if it gains you a full piece. It is truly a sniper!
As you can see, white is threatening the knight on f6. However, what I first fail to notice was the x-ray attack that the b7 bishop had on the a1 rook. Once I figure that out, the rest of the puzzle was quite straightforward. You can solve it below, have fun!