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:
“Shut out from the world with its blare and glare, life in an institution moves softly. The ears become attuned to gentle notes and a subdued tone.”
—Mary B. Harris (1874–1957)