Are you ready for an epic colour challenge? Colour Stack™ is a fast-paced, head-to-head puzzle race where players compete to sort mixed-up coloured rings into perfectly organised stacks. Using a challenge card as the starting setup, players race against each other – or the clock – to arrange the rings into columns of single colours. With simple rules but increasingly tricky challenges, this exciting game delivers brain-teasing fun, sharpens problem-solving skills, and keeps the competition intense from start to finish. • Race to organise coloured rings to match the challenge card pattern. • Includes 50 challenge cards with both easy and difficult puzzles. • Comes with two colour sorting racks and 80 colourful rings. • Encourages logical thinking, concentration, and speedy problem-solving. • Number of players: 1-2 • Recommended age: 8+