Programming, Python, Algorithms, Python Programming, Computer Science.
q1r == q2r: # same row? return False if abs(q1r - q2r) == abs(q1c - q2c): # same diagonal? return False return True # no conflict Add the constraint and run the search, and we’re back at the bottom of the file. Listing 10 queens.py continued csp.add_constraint(QueensConstraint(columns)) solution: