The eight queens puzzle is the problem of placing eight chess queens on an 8×8 chessboard so that no two queens attack each other. Thus, a solution requires that no two queens share the same row, column, or diagonal. The eight queens puzzle is an example of the more general n-queens problem of placing n queens on an n×n chessboard, where solutions exist for all natural numbers n with the exception of 2 and 3.
Read more about Eight Queens Puzzle: History, Solution Construction, Explicit Solutions, Counting Solutions, Related Problems, Exercise in Algorithm Design, Animation of The Recursive Solution, Sample Program
Famous quotes containing the words queens and/or puzzle:
“The queers of the sixties, like those since, have connived with their repression under a veneer of respectability. Good mannered city queens in suits and pinstripes, so busy establishing themselves, were useless at changing anything.”
—Derek Jarman (b. 1942)
“The at present unutterable things we may find somewhere uttered. These same questions that disturb and puzzle and confound us have in their turn occurred to all the wise men; not one has been omitted; and each has answered them, according to his ability, by his words and his life.”
—Henry David Thoreau (1817–1862)