{ "authors": [ "Average-user" ], "contributors": [ "jackhughesweb" ], "files": { "solution": [ "queen_attack.pl" ], "test": [ "queen_attack_tests.plt" ], "example": [ ".meta/queen_attack.example.pl" ] }, "blurb": "Given the position of two queens on a chess board, indicate whether or not they are positioned so that they can attack each other.", "source": "J Dalbey's Programming Practice problems", "source_url": "https://users.csc.calpoly.edu/~jdalbey/103/Projects/ProgrammingPractice.html" }