Standard Shortening Knight to N, to f6 square.
Queen=Q
Knight=N
Bishop=B
Rock=R
King=K

squares with small letters (a, b, c, d, e, f, g, h)
when take happens (Qxf6, Kxg3 or gxh3 for pawn)
when move within same letter vertical or horizontal (Qe3+ from Qe2 square for example or Rfe8)

but never mind if it is complicated.