A simple 4-step method for constructing \(4\times 4\) pandiagonal magic squares
摘要
Magic squares, particularly the 4 × 4 pandiagonal (PD) ones, offer a distinct allure because of the property that rows, columns, principal diagonals, as well as all the broken diagonals, give the magic sum. Building on our earlier exploration of Nārāyaṇa Paṇḍita’s horse-move (turagagati) method, and drawing in particular on additional properties identified in a recent study, this paper presents a simple four-step procedure for constructing PD magic squares within a novel quadrilayered framework. In this method, we begin with four arbitrary numbers {a,b,c,d}, and from them generate the entire PD magic square in just four steps. Additionally, we also find that the characteristic polynomial satisfied by such a square (considering it as a matrix) takes a much simpler and elegant form than the one that is available in the literature.