The Professor's Cube is a popular 3D combination puzzle, also known as the Rubik's Cube. It features a 5x5 grid on each face, allowing for more complex combinations than the standard 3x3 version. The goal is to twist and turn the cube until each of the six faces displays a single solid color. Invented by Ernő Rubik in 1974, the Professor's Cube adds layers of challenge due to its increased number of pieces and possible configurations. It has become a favorite among puzzle enthusiasts and is often used in competitions, showcasing advanced solving techniques and algorithms.