Reti Opening Reti Accepted Fork Puzzle (Rated 891): Win Material — Fork Tactic

This middlegame puzzle is a classic example of a tactical fork that wins material by forcing the king to react first. Black’s active knight jumps into the white position with check, creating a double attack on key pieces and exposing how loose coordination can collapse in one sequence. The position also shows why king safety matters so much in classical chess: even a small material edge can disappear when the king is vulnerable and pieces are overloaded.