Welcome to Puzzle Road!
The half of your pieces on the board, from your color, are pawns. The pawns indeed are the most important pieces for a player in my opinion. In the opening, you need to push them and to control some important squares and the center. In the middlegame, you use them to win squares and next win material. In the endgame, the last step of the chess game, you push them as much as you can to reach the 8th rank and to promote them to Queens!
In this puzzle, you will need to find a trick to promote them to Queens. How? Push or not push, this is the question! One of your pawns needs only 1 move to reach the 8th rank but would be captured by the opponent’s rook if you move it. If you move your rook away from the 7th rank, your opponent takes the pawn…
Moreover, I did add a funny additional comment. It's hidden somewhere in this article: https://www.chess.com/blog/Kyu13/puzzle-road-push-or-not-push-this-is-the-question-p25
25/ Push or not push, this is the question! (Topic: 7th rank, 8th rank and pawn promotion)
Solution: https://www.chess.com/blog/Kyu13/puzzle-road-push-or-not-push-this-is-the-question-p25
Have a great day!@Kyu13