There are three classical problems remaining from ancient Greek mathematics which are extremely influential in the development of Geometry. They are Trisecting An Angle, Squaring The Circle, and Doubling The Cube problems. I solve the Squaring The Circle problem, of which paper is published in the International Journal Of Mathematics Trends And Technology (Volume 69, June 2023). Upstream from this method of exact “Squaring The Circle”, we can deduce, conversely/inversely, to get a new Mathematical challenge "CIRCLING THE SQUARE" with a straightedge & a compass in Euclidean Geometry. This study idea came from my exact solution “Squaring The Circle by Straightedge & compass in Euclidean Geometry”, published by IJMTT in June 2023 at https://ijmttjournal.org/Volume-69/Issue-6/IJMTT-V69I6P506.pdf for this ancient Greek Geometry problem. In this research, I adopt the ANALYSIS method to prove the process of solving this new challenge problem, which has not existed in the Mathematics field till today. The process is an inverse/converse solution solving the ancient Greek Geometry challenge problem of “Squaring The Circle”, using a straightedge & a compass. I hereby commit that this is my own personal research project.