Learn How to Fork: Decisive Material Gain
This puzzle comes from the Vienna Game and shows a classic tactical idea: a forcing queen move that creates a fork on the king and a key piece. In practical classical chess, these motifs often appear when the enemy king is still in the center and one defender is overloaded. Here, Black’s active queen turns a loose position into a decisive material win by combining check, pressure on the c-file, and a follow-up capture of a trapped piece.