King's Pawn Game Puzzle (Rated 802): Fork — Win Material
A knight fork is powerful because one move can attack several valuable targets at once. In this middlegame, Black uses a forcing check to invade the king’s zone while creating a fork against the queen and bishop. White has extra material, but loose pieces and weakened coordination make that advantage unstable. The key idea is to value tactical activity over the material count: a well-placed knight can win back significant material when it attacks high-value pieces with tempo.