English Opening Anglo Dutch Defense Puzzle (Rated 1530): Win Material — Intermezzo Refutation

This puzzle shows a classic intermezzo idea in the English Opening: instead of recapturing immediately, Black inserts a forcing check that changes the move order and wins material. The key tactical motif is a skewer on the pinned bishop, followed by a clean simplification that leaves White unable to keep the extra piece. In classical chess, these short tactical sequences often decide the middlegame before development is complete.