The number of steps needed by the solver to process self.

This is just a useless generation number, but could be used to evaluate the behavior of search algorithms.

Property definitions

ai $ BacktrackNode :: steps
	# The number of steps needed by the solver to process `self`.
	# This is just a useless generation number, but could be used to evaluate
	# the behavior of search algorithms.
	var steps: Int
lib/ai/backtrack.nit:261,2--264,15