Blackmar Diemer Gambit Lemberger Countergambit Puzzle (Rated 1181): Attack f7 — Decisive Material Gain
This middlegame puzzle comes from the Blackmar-Diemer Gambit and highlights a classic attack on f7. White’s active pieces coordinate against the black king’s shelter, while Black’s queen and minor pieces are tied up defending loose material and awkward squares. The key idea is to use forcing moves that exploit the exposed king and overloaded defenders. In positions like this, a single tactical shot can convert activity into a decisive material gain.