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Welcome to explore the 17 distinct wallpaper symmetry groups! Click a symmetry group button to have the background change to the corresponding group. More detailed explanations of the groups can be found in Wikipedia.
After getting more familiarized with the symmetries, you can optionally challenge yourself with the 1 Minute Challenge where you have one minute to recognize as many groups as you can!
You can also press the keys QWERTY-ASDFGH-ZXCVB on your keyboard to choose between the symmetry groups.