Problem
Andy and Melissa are playing a game using a rectangular chocolate bar
made of identical square pieces arranged in rows and columns. A move is to divide the bar
into two parts along a division line. Two parts of the bar stay in the
game as separate pieces and cannot be rotated, but both can continue to
be divided. However, Melissa can only cut along the vertical lines and
Andy can only cut along the horizontal lines. Melissa starts. Who will
win?