Blackmar Diemer Gambit Lemberger Countergambit Puzzle (Rated 1399): Win Material — Short Skewer Tactic

This middlegame puzzle is about using a forcing move to create a skewer against the enemy queen and rook. Black’s active bishop and rook coordination put White’s queen under pressure, and the key idea is that a seemingly natural reply can leave a more valuable piece exposed behind it. In classical chess, these tactical patterns often decide games even when one side is materially ahead, because piece activity and alignment matter more than raw material.