Blumenfeld Countergambit Dus Khotimirsky Variation Puzzle (Rated 1577): Win Material — Blumenfeld Countergambit

This Blumenfeld Countergambit puzzle shows a classic opening tactic where active queen play wins material by exploiting loose pieces and an overloaded defender. Black’s queen invasion creates immediate pressure on White’s queenside, and the position is ripe for a tactical refutation because White’s pieces are still undeveloped. The key idea is not a slow middlegame plan, but a forcing sequence that turns a hanging piece into a decisive material edge while keeping White’s king under pressure.