10×10 is the best free online puzzle game you can find. This addictive time-killer will captivate you with its vibrant colors and relaxing gameplay. Strategically place color shapes on the board to fill rows and columns, earning yourself a high score. Need a change of scenery? Switch the board from light to dark to suit your preference. If you enjoy playing tetris games online, give this idle game a try. It's the perfect way to challenge your puzzle-solving skills and have fun at the same time.