Learn How to Win Material: Intermezzo in the Ruy Lopez
This puzzle shows a classic intermezzo idea in the Ruy Lopez Berlin Defense: instead of recapturing immediately or playing a routine move, White uses a forcing tactical resource to gain decisive material. The key is that the opponent’s last move creates a loose piece and a tactical vulnerability around the back rank and central files. In classical chess, these positions reward accuracy because one forcing move can change the evaluation from worse to winning.