Rush hour rules are easy. Clear the way for the red car to be able to leave the parking lot. Cars can move only forward/backward, no lifting the cars!

Printing:

• Depending on the challenge difficulty, you'll need to print up to 4 trucks and 12 small cars. One of the small cars (preferably convertible one) must be printed in red.
• Parking lot can be printed using different colors to highlight lanes and arrows:
  • Option A - use filament color change in a layer. From 0 to 3.8 mm white color, from 4 all the way to the top grey color.
  • Option B - use provided 3mf file and AMS.
• Asphalt is as separated model for better visual.
• 0.2 mm layer height.
• No supports needed.

Other hardware and assembly:

• Besides filament, you'll also need 72 pcs of cylindrical neodymium magnets 5x1 mm (diameter x height). It is not mandatory, but it's much more comfortable to play with magnetic cars. Use superglue to attach magnets to place.
• New travel friendly design - lid now serves as a stand too and is held in place (in both closed and opened state) using 8 pcs of 8x3 neodymium magnets.
• Pieces of filament to connect hinges with lid and parking lot.

You can generate challenges using online generator, for example here. I attached several example challenges.