3D Knot
There are 6 3D knots in this program. Choose from 1 to 6 on your keyboard.
  
  These knots are made up of curves. Try to trace the curves by rotating the knots and following the colors.
Control
| Arrow keys | Rotation | 
| Number 1 - 6 | Change knot | 
| Any other keys | Change color | 
Source code: knot
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