Ngf6

Ngf6 is a chess move written in algebraic notation. It denotes a knight moving to the square f6, specifically the knight that comes from the g-file. The inclusion of the starting file (g) is used to disambiguate which knight is moving when more than one knight could potentially reach f6.

In a position where two knights can legally move to f6, the notation specifies the origin file to clarify the move. For example, if a knight on a g-file square and another knight on a different file can both go to f6, the move from the g-file would be written as Ngf6, while the move from the other file would be written with its corresponding starting file (such as Ndf6). If the two knights share the same file and could both reach f6, a rank (the starting rank) would be used to differentiate them.

Ngf6 commonly appears in various openings and middlegame plans that involve developing the g-knight to f6 while maintaining flexibility for the other knight. It is especially seen in Indian defenses, Grunfeld structures, and related systems where precise disambiguation helps specify which knight is intended to move to f6.

In simple terms, Ngf6 communicates that a knight is moving to f6 and that the knight originates from the g-file; it is part of the broader system of disambiguation rules used in chess notation.