Indian Defense Czech Indian Puzzle (Rated 909): Win Material — Tactical Refutation

This middlegame puzzle shows a classic tactical refutation built on piece activity and a pinned defender. White’s bishop creates pressure on the kingside, but Black can answer by removing the attacking piece and forcing a favorable simplification. The key idea is that active pieces can be traded when the exchange wins material or breaks the opponent’s coordination. In classical chess, spotting which attacker is overextended often turns a dangerous position into a decisive material gain.