© 2000 Todd Neller.  A.I.M.A. text figures © 1995 Prentice Hall.  Used by permission.
Reducing Search
•Variable/value ordering:
–Prefer more constrained variables:
•Instantiate (assign) the variable with the fewest possible remaining alternatives
–Prefer more constraining variables:
•Instantiate the variable which is in the most constraint subsets.
–Identify and instantiate a stable set of variables (no direct constraints between pairs) last