"Visualize," Sir Kent stated. He swept away all the pieces, grabbed my hand, and put it on the very southwest of the board. "This is a chessboard with sixty-four squares. The horizontal line which is the X-axis consists of letters a to h." He moved my hand, sweeping it towards the right, and then we stopped at the southeast of the board. "Then the vertical line which we call the Y-axis consists of numbers from one to eight," he said, prolonging his words as he ran my hand towards the northeast part of the board. "Therefore, if we combine the letter and the number, we're going to have the coordinates."
I nodded as I stared on the board. "It's just like our Geometry subject."
"Exactly, Quinn," he approved. "Okay, so this is how you determine if the square is light or dark. If the letter h
