Insufficient Material Draw Puzzle (Rated 1500): Win the Queen — Chess Endgame
This chess endgame is a classic example of using active rook play to exploit a loose queen and a centralized king. White’s rook has room to create forcing checks, and the position is shaped by tactical geometry rather than long-term maneuvering. The key idea is to use the rook’s activity to force the enemy king into a vulnerable square, where the queen can be attacked or the position can be simplified into a tablebase draw or win depending on the exact sequence.