Reversible Moves
It is important for further understanding of Genus theory, to know how reversible moves work. Suppose there are two games A and B, where A and B have the same options (moves available), then they are of course, equivalent.
If B has an extra option, say to a game X, then A and B are still equivalent if there is a move from X to A.
That is, B is the same as A in every way, except for an extra move (X), which can be reversed.
Read more about this topic: Genus Theory
Famous quotes containing the word moves:
“Denotation by means of sounds and markings is a remarkable abstraction. Three letters designate God for me; several lines a million things. How easy becomes the manipulation of the universe here, how evident the concentration of the intellectual world! Language is the dynamics of the spiritual realm. One word of command moves armies; the word liberty entire nations.”
—Novalis [Friedrich Von Hardenberg] (1772–1801)