The 2x2 Cube, also known as the Pocket Cube, is a smaller version of the traditional Rubik's Cube. It consists of 2 layers on each side, making it simpler and quicker to solve. Each of the six faces is a solid color, and the goal is to align all colors on each face. This puzzle is popular among both beginners and experienced cubers due to its manageable size and fewer pieces. The 2x2 Cube can be solved using various methods, including intuitive solving and algorithms, making it a great introduction to the world of speedcubing.