Grand Prix Attack Puzzle (Rated 923): Fork — Win Material

A fork is a tactical move that attacks two or more valuable targets at once. In this Sicilian Defense middlegame, White uses an active knight to create a forcing threat against the king while also targeting loose material. The key idea is that Black’s pieces are poorly coordinated: an undefended bishop and queen become vulnerable when the knight reaches a powerful outpost. This produces a decisive material gain despite Black’s significant material advantage before the tactic.