Learn How to Spot a Fork: Modern Defense Tactic
This middlegame puzzle from the Modern Defense shows how a single tactical shot can transform a slightly better position into a decisive one. White has space and active pieces, but the king is still in the center and key squares around it are loose. The tactical idea is to use a forcing check that also creates a fork, winning material and disrupting coordination. In practical classical chess, these motifs often appear when development is lagging and one piece is overloaded.