Attack two pieces with one piece.
A fork attacks two or more pieces at once. A check can make the second threat harder to answer. Before calling it a win, check whether the opponent can capture your attacking piece, protect both targets or create a stronger threat.
Fork the king and queen
Your knight attacks both pieces at once. The opponent must answer the check. In this line, you then take the queen.
2 more clean runs (at any point) to reach Recall.