Green flag. Set the "n" on the slider and press the space bar. When n> 3 Turbo Mode enabled.
Pean curve,fractal mat. such as Jordan curve fills the whole square (both points ext., as well as boundary); Fractal space-filling curve similar - Sierpinski curve- https://scratch.mit.edu/projects/52419026/ Moore curve Hilbert curve- https://scratch.mit.edu/projects/57175604/
