Hello @rodrook in algebraic notation there is no "n", the board only has a,b,..., to h, and of course 1, 2, ..., to 8.

In the older notation though, there is "N" in the form N1, ..., N8, and it's capitalized and so in this example it would have been

2. ...N-N8 (or 2. ...N-QN8)

and not N1 or "n1" (which is the wrong way to write it) as the black pawns are moving upwards