Ali, JavaidMuhammad SaeedTabassum, Muhammad Farhan2018-10-232018-10-232015Ali,J., Saeed, M., Chaudhry, N. A., &Tabassum, M. F. (2015). New Mathematical Models of N-Queens Problem and its solution by a Derivative-Free Method of Optimization. Science International, 27(3), 2005-2008.(Javaid Ali, Muhammad Saeed andMuhammad Farhan Tabassum) (HEC Recognized Y Category)1013-5316https://escholar.umt.edu.pk/handle/123456789/3384Most of the optimization methods do not inherit convergence proofs. One of the measures to rank them is their potential to solve challenging problems specially formulated for this purpose. In this paper the problem involves two main issues. Firstly we present new formulations of the N queens’ configuration problem as optimization problems and secondly we modify a derivative free method so that it may be able to find the optimal configuration of the chessboard.enMathematicsN-Queen Problem, Optimization, Non-linear Programming Problem, Hooke’s and Jeeve’s MethodArticle