aka. Continental Notation
Moves are recorded from the relative viewpoint of the White player,
so that each square has only one description
(eg. White's e5 is also Black's e5).
The squares are denoted only in lowercase lettering.
Used in modern English-language chess books and sanctioned by FIDE (the
worldwide governing body for chess) as the official international method of
notation in preference to the descriptive method.
Algebraic also has two methods: the full algebraic and the short
algebraic. See the comparison of notation
for an example.