Harika Dronavalli (White) Puzzle: Fork — Queen Checks

A fork tactic succeeds when one piece creates two urgent problems at once. In this position, White’s queen can use a forcing check to seize the initiative and expose Black’s active but vulnerable rook. The key is not merely attacking material: the check limits Black’s reply, so the defender cannot freely save every threatened unit. This is a classic tactical refutation of an overextended piece in a sharp middlegame.